Odovtos - International Journal of Dental Sciences
Odovtos – International Journal of Dental Sciences (Odovtos-Int J Dent Sc) is the official scientific publication of the Faculty of Dentistry, University of Costa Rica. The main objective of this peer-reviewed journal is to disseminate original and transcendental knowledge in the field of dentistry and its specialties. Odovtos-Int J Dent Sc primary readership consists of dentists, dental educators, academics, dental students, researchers, health professionals and general public interested in expanding their knowledge in the area. Our journal consider unpublished and original manuscripts in ENGLISH with a prominent focus on critical and innovative data, promoting major clinical, academic and scientific research, based on International Committee of Medical Journal Editors (ICMJE) recommendations. Odovtos - Int J Dent Sc offers Online-First publication, allowing frequent dissemination of its content. You can access our Journal Normalized Citation Impact and Citation Impact in InCites-Clarivate: Incites - Clarivate Citation Impact 2025 JCR Impact Factor list of Clarivate Analytics: 0.9 Qualis 3 SCOPUS WHY SUBMIT YOUR PAPER TO OUR JOURNAL? Odovtos – International Journal of Dental Sciences compromises to disseminate their contents worldwide, through collaborations with several Dental Schools, online databases, index and repositories, website, social media, among others. All submitted manuscripts are peer-reviewed based solely on the criteria of quality, innovation and pertinence. The pre-publication process is brief due to online submission. Moreover, Odovtos-Int. J. Dent. Sc. is an Online-First Journal, which allows frequent publication in Internet according to Open Access Initiative, favoring the diffusion of its content. Journal indexed: ODOVTOS is indexed in Clarivate Analytics with a 2025 JCR Impact Factor list of Clarivate Analytics: 0.9 <a href="https://www.scimagojr.com/journalsearch.php?q=21101088429&tip=sid&clean=0#:~:text=%3Ca%20href%3D%22https%3A//www.scimagojr.com/journalsearch.php%3Fq%3D21101088429%26amp%3Btip%3Dsid%26amp%3Bexact%3Dno%22%20title%3D%22SCImago%20Journal%20%26amp%3B%20Country%20Rank%22%3E%3Cimg%20border%3D%220%22%20src%3D%22https%3A//www.scimagojr.com/journal_img.php%3Fid%3D21101088429%22%20alt%3D%22SCImago%20Journal%20%26amp%3B%20Country%20Rank%22%20%20/%3E%3C/a%3E"> Our journal is also indexed in: Scopus SCIELO REDALYC LATINDEX LILACS DIALNET ESCI-CLARIVATE ANALYTICS REDIB PERIODICA ICJME MIAR ROAD BIBLAT EUROPUB EBSCO PROQUEST ULRICHS COPAC PKP INDEX JOURNAL TOCS DRJI DAIJ J-GATE INDEX COPERNICUS
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Halitosis: Basic Principles About its Origin and Treatment Narrative Review
Halitosis is the presence of an unpleasant smell that emanates from the oral cavity. The etiology of halitosis is multifactorial, existing non oral, oral and extraoral causes. The volatile sulphur compounds (VSC): hydrogen sulfide and methyl mercaptan are the prominent elements of malodour. Intraorally there is a significant correlation between VSC concentrations and periodontopathogenic bacteria. In patients with no gum disease the halitosis is originated mainly in the dorsal surface of the tongue, so cleaning or brushing it is an effective method to prevent or decrease halitosis. There are multiple chemical options for the treatment of the malodour that will depend on the origin and severity of it. This article reviews the origin and mechanical and chemical treatments that are available.
Copyright (c) 2018 Odovtos - International Journal of Dental Sciences https://creativecommons.org/licenses/by-nc-sa/4.0
Complex-Compound Odontoma: A Rare Clinical Presentation
Odontomas can be detected as complex or compound variants and they rarely show the histologic characteristics of both types together. The tumor commonly associated with malocclusion, eruption disturbances and pathological anomalies, but they seldom cause bony expansion. Early detection and management of odontoma with multidisciplinary approach pose an important role to prevent disturbances associated with this common odontogenic tumor. Here we report a rare case of an odontoma which show the features of both complex and compound types and also cause bony expansion, eruption failure in an 8-year-old boy.
Radiographic Evaluation of the Presence/Agenesis of Third Molars in a Mexican Child Population
In the human being, third molar is the tooth that exhibits more variants during its embryologic development, usually causing diverse anomalies and discomfort when erupting to the oral cavity. It has been pointed out that the prevalence of third molar agenesis is between 9 to 37%. The aim of the present comparative cross-sectional study was to radiographically assess the presence/absence of third molar germs (G3M) in a sample of pediatric patients of Mexican origin. A total of 513 panoramic radiographs were analyzed from patients attending the Pediatric Dentistry Postgraduate Program ( San Luis Potosí University, México), during the years 2011 to 2017. Inclusion criteria were patients between 7 and 18 years old, any gender; children with antecedents of a third molar extraction, previous orthodontic treatment, or with an associated congenital or systemic condition were excluded. Total prevalence G3M agenesis was calculated. Then, statistical comparisons of agenesia proportions per dental quadrant, gender, and age group were performed. 245 panoramic radiographs corresponded to the female gender, while 268 belonged to the male gender. The total prevalence of G3M agenesia was estimated in nearly 56%, and the 7-8 years old group exhibited the highest proportion; however, when this age group was excluded from the analysis, such prevalence decreased to 27.3%. Both mandibular quadrants showed higher proportions of G3M agenesia. There were no significant differences between genders. The total prevalence reported in the present study was found to be well above regarding the international parameters. It is quite possible that lack of radiographic visualization of G3M had been inaccurate in some cases due to the common absence of calcification traces from those teeth during early ages (7-8 years old). The adjusted analysis provided a prevalence value more in line with the recognized standards in the dental literature.
Remineralizing Effect of Xilitol, Juniperus Communis and Camellia Sinensis Added to a Toothpaste: An In Vitro Study
The aim of this study was to explore the remineralizing effect of toothpastes based on Xilitol, Camellia Sinensis and Juniperus Communis. An in vitro experimental study was carried out in an 18 human premolars sample, which were treated with one of the 3 evaluated toothpastes and a control fluoride one. The atomic percentages of Ca and P were evaluated by Energy Dispersive X-ray Spectroscopy (EDS). In addition, the enamel surface of treated teeth was visualized by Scanning Electron Microscopy (SEM). The evaluations were carried out in three stages: pre-treatment, after an artificial demineralization process and after the treatment with the toothpastes. In the statistical analysis, the one-way ANOVA and Pearson correlation tests were used. Xilitol and Juniperus Communis showed the greatest gain of P ions compared to the control group (p<0.01). As for Ca, the group treated with xylitol-based toothpaste showed more ion gain compared with the control group (p<0.01). In the Pearson correlation test between Ca and P, statistically significant correlations were observed in all groups (p<0.01), ranging between r=0.7413 (Xylitol Group) and r=0.9510 (Control Group). We concluded that Xylitol paste showed the highest remineralizing property, both in the EDS analysis and in the SEM images.
Rogelio J. Scougall-Vilchis DDS, MSc, PhD
Management of a Child with Reactive Attachment Disorder in the Dental Clinical Setting: A Case Report
Reactive attachment disorder (RAD) is an early childhood mental health disease characterized by impaired social interactions and communication abilities, and neurological deficits in the child’s developing brain. This disorder can significantly affect the pediatric patient’s behavior in the dental setting. An uncooperative 9-year-old Mexican girl, who was residing in a temporary home, was referred by a general dental practitioner to the Postgraduate Pediatric Dental Clinic with her caretaker, requesting dental examination and treatment. The patient presented with a previous diagnosis of RAD with intellectual/social disability. With the psychiatrist’s guidance, an exhaustive oral prophylaxis was carried out in the initial appointments, followed by diverse restorative treatments under the continuous application of behavioral management techniques. These restorative procedures included resin restorations and pit-fissure sealants, under local anesthesia and rubber-dam isolation, on the first four permanent molars. The entire treatment was completed in six weeks. The patient and her caretaker were provided with detailed educational and motivational strategies for improving the patient´s oral hygiene, and they also received nutritional advice. For control reviews and the reinforcement of preventive habits, future appointments were carefully scheduled. An interdisciplinary pediatric collaboration between the dentist, nurse, and psychiatrist was fundamental for improving the patient’s oral health and general welfare.
Childhood reactive attachment disorder; Dental management; Pediatric psychiatric disorders
Copyright (c) 2019 Arturo Garrocho-Rangel DDS, PhD, Hilda Romero-Huízar DDS, Socorro Ruiz-Rodríguez DDS, MS, Nadia P. Campos-Lara DDS, Fernando Pozos-Guillén MD, Amaury Pozos-Guillen DDS, PhD (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
A Fiberglass and Resin Post Technique Combined with Fragment Collage of an Upper Central Incisor: Multidisciplinary Treatment
The clinical treatment of anterior tooth fractures requires specialized knowledge, technical skill, and a degree of artistic sense to ensure successful treatment. Herein, we describe the reattachment of an original tooth fragment with endodontic involvement via the utilization of a micro-hybrid composite resin and an aesthetic fiberglass post.
Juan Carlos Ramírez Barrantes DDS, MSD, PhD
Impact of Two Distinct Dental Anesthesia Simulation Models on the Perception of Learning by Students
We evaluated an infiltration anesthesia simulation model (IAM) and a conduction anesthesia simulation model (CAM) on the perception of learning by Mexican dental students. Our aim was to compare the perception of learning by dental students trained with two distinct dental anesthesia simulation model (DASM) with dental students who were not trained with a DASM. 3 groups participated in the study: G1 (N=12 students) learned to block the mental nerve (BMN) by participating in a theoretical lecture (stage 1) and a clinical demonstration (stage 2); G2 (N=12 students) learned the BMN by participating in the stage 1, stage 2, and training with the CAM; G3 (N=12 students) learned the BMN by participating in the stage 1, stage 2, and training with the IAM. The groups performed the BMN in a clinical exercise. Working-time of all participants was timed. Perception of learning for all participants was evaluated with a 5-point Likert Scale. The results showed that statistically significant differences were found between score of G1 and score of G2 and score of G3 (P<0.05). No statistically significant differences were found between scores of G2 and scores of G3. G1, G2 and G3 showed an average working-time of 12:42 minutes, 9.75 minutes and 8:03 minutes, respectively (P<0.05). We concluded that the IAM and CAM showed a positive impact on the perception of learning, and the students trained with the IAM showed a shorter working time compared with the students trained with the CAM.
Dental anesthesia simulation model; Dental education; Simulation based learning; Perception of learning; Likert scale.
Bernardino I. Cerda-Cristerna DDS, MSc, PhD
Copyright (c) 2019 Jadith Merino-Parra DDS, Ricardo E. Madrazo-Meneses DDS, Takashi Komabayashi DDS, MSc, PhD, Bernardino I. Cerda-Cristerna DDS, MSc, PhD (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Knowledge of Parents about Bruxism in their Children
Objective: Bruxism is a jaw muscle activity disorder characterized by clenching or grinding of the teeth and can be seen in both children and adults. The purpose of this study is to evaluate the parental knowledge about bruxism in children. Methods: A cross-sectional study was conducted with 265 parents whose children were attended at University of Mersin pediatric dentistry and oral and maxillofacial surgery clinics. Children’s ages varied from 6 months to 16 years old. A 20-questioned questionnaire was used to collect the data. IBM SPSS Statistics 22 for statistical analysis (SPSS IBM, Turkey) program was used for the analysis. Results: A total of 265 parents (159 were female and 106 were male) participated in the study. The majority of the parents were between the ages of 31-40 (60.8%). The rate of clenching and grinding of teeth during sleep (21.5%) was higher than the rate when they were awake (7.2%). The ratio of the parents seeking treatment for their children because of this harmful habit was very low (3.8%). The majortiy of parents (37.7%) reported that they seek help from dentists. The participants believed that bruxism was associated with dental problems (33.6%) and emotional factors (32.8%). A significant difference was found between the educational background of the parents and the ability to define bruxism. Conclusion: Parents had inadequate knowledge about bruxism in children and this was mostly related to the educational background of the parents.
Bruxism; Parents; Knowledge; Awareness; Child; Surveys; Questionnaires
Copyright (c) 2019 Secil Calıskan DDS, PhD, Ebru Delikan DDS, MDs, Ayse Ozcan-Kucuk DDS, MDs (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Effect of Polishing Systems on Fluoride Release and Surface Roughness of Different Restorative Materials
Secondary caries is an important factor in the replacement of the restorations, and it is thought that fluoride-releasing materials may prevent this problem. Furthermore, the fluoride release of the materials may be increased by polishing process. Available knowledge about the effect of polishing systems (PS) on the fluoride release of materials is limited. Therefore, this study was conducted to evaluate the effect of PS on the fluoride release of fluoride-containing materials. Restorative materials were divided into 6 groups: Fuji IX GP, Fuji II, Dyract XP, Beautifil II, Beautifil-Bulk, and Filtek Ultimate. Each group was also divided into four subgroups: Mylar strip, Sof-Lex Discs, Sof-Lex Diamond, and OneGloss. Fluoride release was determined using a fluoride ion-selective electrode. Surface roughness was evaluated with a profilometer. Two-way repeated measure and one-way ANOVA tests were used for statistical analysis. The initial rapid fluoride release was observed only in Fuji IX. The PS increased the fluoride release of Fuji IX and Fuji II and Dyract XP materials while reducing the fluoride release of resin-based materials. The highest surface roughness values were obtained with OneGloss. Further, a significant relationship between fluoride release and surface roughness was found. The polishing provides an increase in fluoride release, especially in glass-ionomer-based materials. This article revealed that there is a relationship between fluoride release and surface roughness. Proper PS must be chosen according to the material to provide the best clinical benefits in terms of fluoride release and surface roughness.
Compomers; Composite resins; Dental materials; Fluorides; Glass ionomer cements.
Copyright (c) 2019 Soner Şişmanoğlu DDS, PhD, Burak Gümüştaş DDS, PhD, Zuhal Yıldırım-Bilmez DDS, PhD (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
In Vitro Effect of Temperature on Dentin Bond Strength of Universal Adhesive Systems
The aim of this study was to evaluate the shear bond strength (SBS) of two universal adhesives (Universal Single Bond and All Bond Universal) and a two-step self-etch adhesive system (Clearfil SE Bond) to dentine at various temperatures. Materials and Methods: One hundred and twenty dentin specimens were divided randomly to 12 groups, according to adhesive systems (Universal Single Bond and All Bond Universal, Clearfil SE Bond) and temperature ( 4ºC, 20 ºC, 36ºC, 55ºC) used. Dentin specimens were prepared (n :10, adhesives were applied, and composite cylinders were polymerized. Statistical analysis of the SBS data was performed using Two-way analysis of variance (ANOVA) and Tukey’s Honestly Significant Differences post-hoc test. Results: The Clearfil SE Bond was shown to have higher SBS than the universal adhesives at all temperatures; however, there was no statistically significant difference (P>0.05). In both groups, the lowest SBS values were observed in the samples at 4°C while the highest SBS values were observed in the samples at 55°C. In this case, there was a statistically significant difference (P<0.05). Conclusions: The results suggest that the effectiveness of an adhesive may increase if it is preheated at 36°C or above before use instead of being used immediately after removal from the refrigerator or at room temperature.
Shear bond strength; Universal adhesive systems; Preheating.
Copyright (c) 2019 Serdar Akarsu DDS, PhD, Sultan Aktuğ Karademir DDS (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Surgical Complications Associated to Maxillary Sinus Floor Elevation in Implantology
Maxillary sinus floor elevation has been extensively documented as a safe and predictable procedure for gaining vertical bone height in the atrophic posterior maxilla. Even though, complications have been reported, which can potentially jeopardize the outcome of the regeneration and implant therapy. Therefore, the purpose of this literature review is to present, debate and analyze the different complications that can occur during a sinus floor elevation.
Maxillary Sinus; Sinus Floor; Sinus Floor Augmentation; Membrane; Septum.
Copyright (c) 2019 Deisy E. Quispe Damián DDS, MSc, Carmen T. Castro-Ruiz DDS, MSc, Gerardo Mendoza Azpur DDS, MSc (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Bruxism in Children and Adolescents: A Review of the Literature
Bruxism is defined as a repetitive activity of the chewing muscles characterized by clenching or grinding of the teeth and/or by striking and swinging the jaw. It is of multifactorial etiology and it is considered that there is a physiological bruxism necessary for the development of the face of children. These two aspects complicate the diagnosis that is fundamentally based on a questionnaire to the parents and on the clinical examination of the child. When the physiological wear does not differentiate in time from the parafunctional wear, it has negative consequences in the child that alter their quality of life, requiring an adequate multidisciplinary management. Considering that it is necessary to know the fundamental characteristics of bruxism in children and adolescents, the objective of this review article is to update its circadian manifestations, classifications, prevalence, etiology, risk factors, diagnosis and treatment that will serve the dentist for the early identification and treatment.
Bruxism; Sleep bruxism; Grinding; Children; Adolescent
Copyright (c) 2020 Viviana Abigail Alvarez-Gastañaga, Mercedes Carolina Baldeón-López, Violeta Malpartida-Carrillo CD, Mg, Esp (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Effect of Light Curing Modes on the Color Stability of a Nanohybrid Composite Immersed in Different Beverages
Aim: Sufficient polymerization remains as crucial for composites to prevent discoloration. Both LEDs and halogen units are used for polymerization and different curing modes are improved to overcome inadequate polymerization. This in vitro study investigated staining susceptibility of a nano-hybrid resin composite light-cured in different modes and immersed in different staining media. Methods: Disc-shaped specimens were prepared from nano-hybrid resin composite (Filtek Z550) and light-cured according to following modes: Halojen (GI), LED standard (GII), LED pulse (GIII) or LED ramp (GIV). Half of the specimens of each group (n=7) were stored in one of the staining media (red wine or coffee) for 10 min/day during experimental period. Measurements were performed using spectrophotometer according to CIEL*a*b system at baseline and on 7, 28 and 56 days. Colour differences (∆E) between groups were submitted to statistical analysis. Results: Regarding 7-day evaluation, colour change values of specimens immersed in coffee revealed no remarkable difference among curing modes (p>0.05); whereas specimens in GIV were significantly less stained compared to specimens in GII and GIII when immersed in red wine. Regarding 56-days of evaluation, specimens of GIV showed statistically significant colour change in red wine compared to other groups. However specimens in GI revealed the least staining after 56-days of coffee immersion, and this result was statistically different from LED groups. Conclusion: This study suggest that light-curing mode influences the staining susceptibility of the tested composite. Composites polymerized with halogen unit showed lower staining than all LED modes. Despite novel light sources, halogen units may still used reliably at clinics.
Composite resin; LED units; Halogen units; Light curing modes; Color stability; Polymerization
Copyright (c) 2020 Gunce Ozan PhD, Hande Sar Sancakli DDS, Murat Tiryaki PhD, Isil Bayrak PhD (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Effects of Different Storage Conditions on Mechanical Properties of CAD/CAM Restorative Materials
The aim of this study was to evaluate mechanical properties of six new-generation all-ceramic materials for CAD/CAM (Lava Ultimate [LU], VITA Mark II [VM], InCoris TZI [IC], IPS e.max CAD [EM], VITA Suprinity [VS], IPS Empress CAD [EC]) and two different provisional restoration CAD/CAM materials (Telio CAD [TC], Vita CAD-Temp [VC]) after different storage conditions. 36 bar-shaped samples of 4 mm in width and 14 mm in length with 1.2 mm thicknesses were prepared from each material group (N=288). The specimens from each material were kept under three different storage conditions (n=12): under dry conditions at room temperature; 37°C distilled water for 7 days; and 37°C distilled water for 7 days followed by 10,000 thermal cycles. All specimens were subjected to a 3-point flexural test with a crosshead speed of 1.0 mm/min. The specimens were loaded until failure. Twelve fractured specimens after the flexural test from each group were used for the Vickers hardness test (under 300 gf of loading in 15 seconds). The flexural modulus, flexural strength and Vickers hardness values were separately analyzed with two-way analysis of variance, Tukey’s multiple comparison tests at a significance level of p<0.05. There were statistically significant differences between materials and storage conditions according to flexural modulus, flexural strength and Vickers hardness values (p<0.05). The flexural strength, flexural modulus and Vickers hardness values of LU, VC, TC, VS and IC decreased after water storage followed by thermal cycling (p<0.05). The mechanical properties of provisional restoration CAD/CAM materials had showed a significantly decrease after water storage followed by thermal cycles but their mechanical properties were acceptable for fabrication of provisional restorations. The mechanical properties of VM, EC and EM were not affected by different storage conditions whereas IC and VS were affected.
Copyright (c) 2020 Ayşe Atay DDS, PhD, Elçin Sağirkaya DDS, PhD (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Functional Rehabilitation with an Onlay Ceramic Adhesive Restoration: Case Report
The objective of this article was to analyze the indications for the proper selection of Onlay adhesive ceramic restorations, providing a step-by-step clinical protocol. Biomechanical principles based on morphological considerations and geometric terms must be present for the careful preparation of Onlay-type cavities. Concepts about cavitary preparations are discussed under essential conditions in the preservation of healthy dental tissue, without compromising the functional and aesthetic results over time. The author's suggestion is to respect and follow in a timely manner each of the steps applied in this restorative clinical protocol, to improve the final outcome of the restoration.
Esthetic; Adhesive systems; Composite resins; Minimally invasive restorations.
Copyright (c) 2020 Juan Carlos Ramírez Barrantes DDS, MSD, PhD (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Ex Vivo Evaluation of a Restoration Protocol for Teeth with Simulated Incomplete Rhizogenesis
The use of phosphate buffered saline (PBS) as an intracanal medication triggers a biomineralization process within mineral trioxide aggregate (MTA) apical plugs during the apexification process in teeth with incomplete rhizogenesis. However, no consensus is available in the literature regarding a restorative protocol for this type of treatment. Thus, the objective of this study was to use scanning electron microscopy (SEM) to evaluate the processes of biomineralization and adhesion in a restorative protocol for teeth with simulated incomplete rhizogenesis. Methodology: Root sections with a thickness of 2mm and cavities with a diameter of 2mm were used. The sections were randomly prepared and filled with the following materials: Group 1 (n=12), ProRoot MTA; and Group 2 (n=12): MTA Exp. Subsequently, the samples were immersed in PBS for 35 days. Every 5 days, the PBS was replaced, and the precipitates were collected, dried, and weighed. Two samples from each group were analyzed by SEM. Moreover, 24 single-rooted teeth were standardized, incomplete rhizogenesis was simulated, and 5-mm-long apical plugs were created with Pro Root MTA. As an intracanal medication, PBS was used for different periods of time: Group 1:48 h; Group 2:7 days; and Group 3:15 days. Then, fiberglass posts were cemented with the REBILDA® Post System. The samples were prepared and analyzed by SEM. Results: ProRoot MTA and MTA Exp effectively promoted the formation of carbonated apatite precipitates and biomineralization with dentin. ProRoot MTA yielded more carbonated apatite precipitates compared to MTA Exp (p=0.0536). The use of PBS as an intracanal medication for 7 and 15 days promoted intratubular mineralization (MIT), and treatment for 15 days was more effective (p < 0.05). The REBILDA® Post System effectively promoted the microimbrication of the adhesive system and the formation of resinous tags with lateral adhesive branches. Conclusion: Apexification with MTA associated with the use of PBS as an intracanal medication for 15 days, in addition to the use of the REBILDA® Post System, seems to be a feasible restorative protocol.
Adhesion; Apexification; Apical plug; Biomineralization; Mineral trioxide aggregate.
Copyright (c) 2020 Cristina Retana-Lobo DDS, MSD, Jessie Reyes-Carmona DDS, MSD, PhD (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Is Burning Mouth Syndrome Based on a Physiological Mechanism which Resembles that of Neuropathic Pain?
Burning mouth syndrome (BMS) is a chronic intraoral pain state that has been described as burning pain, tingling or numbness in the oral mucosa, in the absence of any organic disease. Most often affecting the tongue, anterior palate, and/or lips. The diagnosis of primary BMS is purely clinical and based on patients’ description of typical subjective symptoms as well on the exclusion of any systemic or local factors that may give rise to secondary burning pain sensations within the oral mucosa. Relevant studies links BMS to a peripheral neuropathy and BMS patients have revealed distinct abnormalities within the trigeminofacial large and small fiber systems and the trigeminal brainstem complex. Therefore, treatment approach should involve a multidisciplinary character similar to the treatment for neuropathic pain including factors that might also play a role on the BMS etiology and pathophysiology.
Burning mouth syndrome; Neuropathic pain; Pathophysiology.
Copyright (c) 2020 Marisol Reyes Sevilla DDS (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Assessment of the Flexion Force of TMA and Elgiloy Intrusion Arches to Different Lengths of Activation. An In Vitro Study
The present study analyzed the utilitary arch of Ricketts made with TMA and Elgiloy alloys, evaluating the forces that each one presented at different activation lengths. METHODS: A total of 30 arches (15 per alloy) 17x25 caliber were assessed. An acrylic model that simulated the jaw was used with tubes welded to the bands located on the first molars where the arches were attached and brackets were bonded to the lower incisors. The Ricketts arches had a total length of 100 mm and were activated in their distal branch, obtaining the lengths of 5, 10 and 15 mm measured from the slot of the anterior brackets in the midline. A Digital Universal Testing Machine CMT-5L was used to measure the bending force and the statistical analysis was carried out with the Student's T and Mann-Whitney U test. RESULTS: The TMA alloys had a significantly lower strength in each of the activations 5, 10, 15 mm (13,53; 31,61 and 42,01grams respectively) compared to Elgiloy (31.41; 62,61 y 93,00 grams respectively). While increasing the activation length, the flexural forces increased significantly for both alloys. CONCLUSION: The suggested forces for the intrusion of lower incisors were reached by the Elgiloy arches.
Dental intrusion; Alloys; Flexural resistance.
Copyright (c) 2020 Francis Kelvin Ramos Lara DDS, Teresa Evaristo-Chiyong DDS, MSc, PhD (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Sexual Dimorphism Via Palatal Vault Morphometric Analysis on A Sample Peruvian Population
Objective: Determine sexual dimorphism precision via palatal vault morphometric analysis in craniums sourced from the Laboratorio de Investigación Forense del Equipo Forense Especializado (EFE) de Ayacucho del Ministerio Público - Perú. Materials and Methods: Cross-sectional design consisting of a sample of 43 skulls with pre-established biological gender, (24 males and 19 females). Sexual dimorphism was established by means of the method proposed by Meera Jacob and co., based on palatal width and length measurements, after which the palatal index was calculated, establishing the method’s precision and accuracy. The inferential analysis was made with a level of significance of 5% through the T student test, Shapiro Wilk and Pearson’s coefficient. Results: Palatal width had a mean of 3.43 (+0.31cm) for males and 3.62 (+0.25) for females and in palatal length a mean of 5.07 (+0.44) cm. for males and 4.79 (+0.41) cm. for females is established; on palatal index, 100% of the male skulls correspond to hard narrow palate and on females 73.7% to narrow, 21% to intermediate and 5.3% to wide. Furthermore, it was determined that there were statistically significant differences between width and length of palatal vault for both genders, and a discriminating analysis formula was proposed. Conclusion: Morphometric analyses of palatal vaults establish an 83.72% precision on the estimation of sexual dimorphism.
Sexual dimorphism; Palatal vaults; Morphometric analysis.
Copyright (c) 2020 Karen J. Escalante-Flórez DDS, Daniel G. Suárez-Ponce DDS, MSc, PhD, Ymelda W. Velezmoro-Montes DDS, MSc (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Impact on Quality of Life of Oral Diseases Related to Stress
It has been suggested that oral mucosa diseases related to stress have a negative impact on the quality of life. However, the information regarding which aspects are the most affected is inconclusive. The objective was to compare the quality of life associated with oral health in two groups: Cases formed by 21 patients coming from a teaching clinic, suffering oral lichen planus, recurrent aphthous stomatitis, and burning mouth syndrome; Control formed by 42 healthy subjects matched for age and gender. Oral Health Impact Profile questionnaire was applied. Statistical analysis showed that group Cases has worse quality of life (p 0.03) than the one of controls, specifically on psychological discomfort (p 0.027), physical disability (p 0.004); and handicap dimensions (p 0.002; RM 5.63 IC1.58-20.80). It was concluded that patients suffering oral mucosa disease related to stress showed poor quality of life.
Oral lichen planus; Recurrent aphthous stomatitis; Burning mouth syndrome; Anxiety; OHIP-49.
María C. Villanueva-Vilchis DDS, MSc, PhD
Copyright (c) 2020 Diana I. Rivera-Reza DDS, María C. Villanueva-Vilchis DDS, MSc, PhD, Luis A. Gaitán-Cepeda DDS, MSc, PhD (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Detection of Oral Entamoeba Gingivalis and Trichomonas Tenax in Adult Quilombola Population with Periodontal Disease
The objective was to analyze the periodontal condition severity and the occurrence of pathogenic microorganisms in the oral cavity of an adult population of an Afrodescent Community of northeastern Brazil. This is an observational and cross-sectional study performed through an oral clinical examination, using a standardized clinical record. For the subjects with periodontal disease, the bacterial biofilm was collected in a Petri dish containing 0.9% physiological solution to detect the presence of microorganisms Entamoeba gingivalis and Trichomonas tenax, and later observed under an optical microscope. Statistical analysis was performed by calculating the prevalence of periodontal disease and the frequency of the protozoa in the bacterial biofilm. Statistical significance of the relationships researched was verified by Fisher's exact test. It was evaluated 29 subjects pertaining to the Quilombola Patioba community, aged 35 to 44 years. The results showed that among the adults of the community, there was a high prevalence of periodontal disease (75.86%), being higher in the 1st and 6th sextants of the Community Periodontal Index (CPI). E. gingivalis positivity occurred in most sextants affected by gingivitis, while in the condition of periodontitis, this microorganism was not present in the 3rd, 4th and 6th sextants. In all sextants affected by periodontal disease, T. Tenax was observed when associated with gingivitis. It is worth mentioning the begging of the elaboration of health policies, social and professional commitment that foster a greater promotion of oral health and quality of life for the quilombolas of northeastern Brazil.
Epidemiology; Dental health surveys; African continental ancestry group; Antigens, Protozoan; Periodontitis.
Cristiane Costa da Cunha Oliveira DDS, PhD
Copyright (c) 2020 Jamille Alves Araújo Rosa MsC, Matheus dos Santos Fernandez, Igor Soares Vieira PhD, Rubens Riscala Madi PhD, Cláudia Moura de Melo PhD, Cristiane Costa da Cunha Oliveira DDS, PhD (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Gingival Health Related to Intake of Different Types of Foods and Body Mass Index in 12-year-old Schoolchildren
Research on gingival health of 12-year-old schoolchildren in Costa Rica is scarce. Since nutrition is an integral component of oral health, this study aimed to determine gingival status of 12-year-olds at Carmen Lyra Public School, San José, Costa Rica, and correlate these variables with the frequency of intake of different types of food and body mass index (BMI (kg/m2)). Sixty-two 12-year-old schoolchildren were recruited. A periodontist assessed Plaque Index (Silness and Löe,1964), presence of calculus, and Gingival Index (Löe and Silness, 1967). Gingivitis was defined as the presence of bleeding on probing (BOP) on at least one site, and the extent was classified according to the percentage of teeth whose gingiva presented BOP limited: 25-49% of teeth tested; extensive >50% of teeth tested. A semi-quantified food consumption frequency questionnaire was administered. BMI was calculated for each participant. Overall Plaque Index was 1.18. Calculus was present on 40.40% of the sample, 19.4% had supragingival calculus and 21% had either supragingival/subgingival calculus or both. Presence of calculus was related with number of bleeding surfaces (p=0.030). Number of teeth with calculus was related to bleeding(p=0.029), and number of bleeding surfaces (p=0.009). Gingival Index was 0.97, mild gingivitis. Gingivitis was present on 96.8% of children examined. Limited gingivitis was present in 11.5% of children and extensive gingivitis in 88.5%. None of the variables measured differed by gender. No relationships were found between the consumption of starchy foods, animal and vegetable protein sources, fruit, vegetables, fast foods, sugar sweetened beverages and desserts with Plaque Index, calculus, Gingival Index, and BOP. Teeth calculus was related with being overweight (chi-square=0.038). BMI for males was 20.21 and females 20.11. BMI was not related to BOP or calculus. Within the limitations of this pilot study, we concluded the prevalence of gingivitis and calculus is high in the sample examined. A greater sample is needed to determine correlations between the frequency of foods evaluated and gingival health.
Gingival health; Nutrition; 12-year-old schoolchildren; Plaque Index; Gingival Index.
Copyright (c) 2020 Karol Ramírez DDS, MSc, PhD, Adrián Gómez-Fernández DDS,MAG, Mónica Rojas, Rebeca Rojas-Guzmán, Mariana Solano-Sanabria, Carolina Villalobos-Méndez, Georgina Gómez MSc (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Esthetic Perception of the Smile According to Variation of the Vertical Position and the Angulation of the Upper Central Incisor in Three Regions of Peru
Objective: To evaluate the esthetic perception of the smile according to the variation of the vertical position and the angulation of the upper central incisor (UPI) by dental students (DS) and common people (CP) of three regions of Peru. Materials and Methods: Descriptive cross-sectional design. The sample was 462 adults, divided into 77 for each subgroup of DS and CP of the Lima (Coast), Junín (Highlands) and Loreto (Rainforest) regions. Using the Photoshop® software, a photograph of a woman's smile was modified by varying the vertical position and angulation of the UPI, obtaining images that were evaluated using the analog visual scale. Results: The CP rated better than DS in most categories (p <0.001). The smile best valued by DS in a vertical position was 1mm and 2mm; and for angulation 0°, while for CP 1mm and 0° respectively (p <0.05). Comparing by regions, the DS of Lima gave the lowest rating for 0 ° with 52.63 and those of Junín the highest for 4° with 45.90. The PC of Loreto registered the lowest score for the vertical position categories (p <0.001), while for angulation in Junín it was rated with a lower score than in Loreto for -6 ° and 0 °; and for 4° Lima provided the lowest rating (p <0.001). Conclusions: The esthetic perception of the smile is affected by the variation of vertical position and angulation of the ICS in common people and dental students in the three regions of Peru.
Perception, Esthetics, Vertical position, Mesiodistal angulation, Smile, Peru.
Copyright (c) 2020 Luis Angel García-Gonzales, Teresa Angélica Evaristo-Chiyong (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Lingual Focal Hyperplastic Lesion in a Pediatric Patient: Report of an Unusual Case
Focal fibrous hyperplasia (FFH) is an oral mucosal localized non-neoplastic enlargement representing a reaction to chronic local irritations or injuries. The purpose of this report is to describe the management of an asymptomatic fibrotic lesion located in the tongue, in a preschooler boy. A 7-year-6-month old boy attended our clinic for the evaluation of an exophytic pedunculated tumor-like round mass located in the dorsal surface of the tongue. Based on the initial examination and the natural history of the lesion, the presumptive clinical diagnosis determined an irritation FFH. The lesion was surgically excised with a diode laser device, and the postoperative period evolution occurred without any complication. The appropriate treatment of FFH in children initially consists of the removal of local irritant factors. Excellent oral hygiene maintenance and close follow-up care are strongly suggested. Surgical excision is the most frequent modality for persistent lesions. Early diagnosis and proper management of FFH can reduce the risk of future recurrences or complications.
Focal hyperplasia lesion; Oral cavity; Tongue; Children; Surgical treatment; Laser.
Copyright (c) 2020 Denisse A. Herrera B., Joselin Flores V., Francisco J. Tejeda N., Victor Fierro S., Amaury J. Pozos G., Arturo Garrocho R. (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Preclinical simulation courses in dental education with COVID-19 pandemic
Copyright (c) 2020 Gerardo Durán Ojeda (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
The Oral Microbiota: A Literature Review for Updating Professionals in Dentistry. Part I
In recent decades, a body of literature examining the relationships between oral health and general health has rapidly developed. However, the biological mechanisms involved in explaining such relationships have not been fully described. Recent evidence has suggested that these relationships could be partially explained by the composition and interaction of the microbiome/microbiota between local and systemic body sites. For instance, it has been suggested that intestinal microbiota could have effects on non-communicable diseases, such as diabetes or cardiovascular diseases. The objective of this study is to explore current evidence of the link between oral and systemic diseases, to discuss whether oral microbiome/microbiota could represent an unexplored biological pathway partially explaining those relationships. A non-systematic review of the literature was carried out using keyword searches in Pubmed from February to May 2019. The ultimate goal was to present recent scientific evidence to update the general knowledge on this topic to professionals in dentistry. This review is divided in two parts for journal publication; however, it is intended to be used as one piece. In this first part, we will summarize the conceptual background of oral microbiome/microbiota, we will describe the main methods used in microbiology to characterize oral organisms, and will present the main composition of bacteria in oral microbiome/microbiota. The second part highlights the main evidence regarding the biological plausibility that links oral microbiome and systemic diseases and we will conclude with some future research recommendations. Taking into account the role of oral microbiota in the development of systemic diseases could change the main paradigm of how oral health is currently conceptualized by dental professionals.
Microbiota; Bacteria; Oral hygiene; Dental plaque, Holistic health; Continuing Education.
Copyright (c) 2020 Cristina Barboza-Solís, Luis Alberto Acuña-Amador (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Clinical and Histopathological Concordance of oral Bone Lesions. Retrospective Study
Bone lesions of the jaws have their origin from odontogenic and non-odontogenic structures. They can be benign or malignant, asymptomatic, they can be located around the root of the tooth, around the crown and in the interradicular area or they may not be related to the teeth. OBJECTIVE: to determine the frequency of the different bone lesions and the concordance between the clinical and histopathological diagnosis, in the clinical internship of the Faculty of Dentistry of the University of Costa Rica (UCR). METHODOLOGY: retrospective study of bone lesions recovered from the biopsy archive of the Faculty of Dentistry of the UCR from 2008 to 2015. Information on sex, age, location of the lesion, clinical diagnosis and diagnosis were evaluated and described. The agreement between the clinical and histopathological diagnosis was verified by the Kappa test. RESULTS: The 77 cases of oral bone lesions preferentially affected men 53.8% (n=41), the average age was 34.7 years (s.d.±19.6) and with lesions predominantly located in the posterior jaw 36.4% (n=28) and anterior maxilla 35.1% (n=27). Odontogenic cysts (OC) 42.9% (n=33), non-specific or unclassified diagnosis 28.6% (n=22) and inflammatory lesions of pulp and periapical origin 14.2% (n=11). TOs accounted for 7.8% (n=6) of the lesions. The four most predominant lesions were the radicular cyst, nonspecific diagnosis, dentigerous cyst and periapical granuloma. Concordance with the first diagnostic hypothesis was presented in 24 (31.2%) cases, the value of Kappa was 0.274 (discrete concordance) and 20.8% without clinical diagnosis only a description of the lesion. CONCLUSIONS: The OC were the predominant; being individually the radicular cyst the most frequent lesion. The clinical and histopathological concordance was discrete.
Biopsy; Oral pathology; Bone; Epidemiology; Clinical diagnosis.
Copyright (c) 2020 Yadira V. Boza Oreamuno, Andrea López Soto (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
A Preliminary Research Study on the Cytotoxicity of Expired and Non-expired Composite Resins: In Vitro Study
Objective: Studies have focused on use of non-expired composites. Unfortunately some clinicians still use expired composite resins without considering their effects. The objective of this in vitro preliminary research was to investigate cytotoxicity of expired(6-months) and non-expired composite resins. Materials and methods: Expired (E) and non-expired (NE) samples of one bulk-fill (Tetric N-Ceram Bulk-fill [TNB], Ivoclar Vivadent), two nano-hybrid (Tetric N-Ceram [TN], Ivoclar Vivadent; Clearfil Majesty ES-2 [CM], Kuraray) composite resins were tested on L929 fibroblast cells. Medium covering cells was removed then plastic rings (2-mm height) were filled with non-polymerized composite resins, placed in direct contact with cells and polymerized with LED light curing unit (LCU). Three samples were prepared for each group. After polymerization, removed medium was added to the cells. Cells that were left without medium (WOM) and cells that were exposed to LCU were used as positive control groups. Cells without any treatment were used as negative control group (C). Cells were incubated with tested materials for 7-days to evaluate cytotoxicity. Cell viability was calculated by sulforhodamine B test as a percentage (%). One-way ANOVA and post-hoc Tukey tests were used for statistical analyses (p<0.05). Results: Comparison between E and NE groups of same composite resins did not result in statistically significant differences (p>0.05), except between TN NE and TN E (p<0.05). TN E group was significantly more cytotoxic than TN NE group. When NE composite resin groups were compared to each other, statistically significant difference was only obtained between TNB NE and TN NE (p<0.05). Among all tested groups, TN NE group showed the least cytotoxic profile. No statistically significant differences were determined when E composite resin groups were compared to each other (p>0.05). All experimental groups compared with C group showed statistically significant cytotoxicity (p<0.05). A statistically significant difference existed between LCU and C groups (p<0.05). Conclusions: In clinical practice, expired composite resins should never be used. Although a correlation was found between expiration dates of nano-hybrid composite resins and cell viability, opposite data were obtained for bulk-fill composite resin. Researches are still required to evaluate biocompatibility of bulk-fill composite resins at various thicknesses with current LCUs.
Composite resin; Expiration; Toxicity; Cell survival.
Copyright (c) 2020 Magrur Kazak, Nazmiye Donmez, Fatemeh Bahadori, Vildan Betul Yenigun, Abdurrahim Kocyigit (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Evaluation of Effectiveness of Self-Adhesive Composites for Amalgam Repair with or Without Alloy Primer, in Terms of Shear Bond Strength
Purpose: The purpose of the present research was to evaluate the effectiveness of self-adhesive composites in amalgam repair as time-saving alternatives to universal bonding-universal composite materials, with or without the usage of Alloy Primer in terms of shear bond strength. Materials and Methods: Forty-two disc-shaped amalgam samples were prepared by condensing into 6×2 mm holes in acrylic resin blocks, sandblasted with 50 μm Al2O3 and randomly divided into 6 groups according to repair material [Constic (Group C), Fusio Liquid Dentin (Group FLD), Universal bonding+Universal composite (Group Control), Alloy Primer+Constic (Group APC), Alloy Primer+Fusio Liquid Dentin (Group APFLD), Alloy Primer+Universal bonding+Universal composite (Group APControl)]. After shear bond strength test, the fracture modes were determined under a digital microscope. Statistical analysis was performed using one-way analysis of variance and Tukey's post hoc test. Results: The highest shear bond strength values were obtained for Fusio Liquid Dentin, among the three repair materials when Alloy Primer was not applied (p<0.05). Usage of Alloy Primer increased shear bond strength values of the investigated repair materials to amalgam, except Fusio Liquid Dentin. Conclusion: Within the limitations of the present research, it can be concluded that; the investigated self-adhesive composite materials could be time-saving alternatives to the Universal bonding+Universal composite for the purpose of amalgam repair, in terms of shear bond strength. The clinicians could prefer Fusio Liquid Dentin self-adhesive composite material without Alloy Primer application for the purpose of amalgam repair in non-cooperative patients.
Amalgam repair; Self-adhesive composite; Shear bond strength; Alloy primer; Amalgam; Composite.
Copyright (c) 2020 Fatma Ayse Sanal, Derya Guler (Author) https://creativecommons.org/licenses/by-nc-sa/4.0
Management of Recurrence of Ameloblastoma and Odontogenic Keratocyst: A Cross-Sectional Study
Objectives: Odontogenic keratocyst (OKC) and ameloblastoma are slowly growing and locally invasive tumors with high recurrence rate. The aim of this study was to investigate the clinicopathologic features of recurrent ameloblastoma and OKC cases, and evaluate outcomes of our treatments in terms of recurrence. Material and Methods: A total of 23 patients with confirmed recurrent ameloblastoma or OKC and treated in our clinic within eleven years period were reviewed retrospectively. Results: Eleven recurrent OKC cases and twelve recurrent ameloblastoma cases were included. Most recurrences occurred within five years after the initial treatment (69.6%). Enucleation had the highest recurrence rate among the first treatments (18/23). All recurrences were located in the mandible, with one exception (22/23). All recurrent OKCs were multilocular. Different histopathologic subtypes of ameloblastoma were seen in our study, follicular ameloblastoma was the most common (8/12). The mean diameter of the lesions was 4.3 cm (ranging from 2 cm to 7 cm). Statically significant relation was found between location and diameter of lesion and year of recurrence onset (p=0.004; p=0.026). We performed radical treatments in these cases (ten patients underwent marginal resections, and thirteen patients underwent segmental resection), and no recurrence was observed during the follow-up period. Conclusion: Previous inadequate surgical procedures were the most important cause of recurrence. Marginal or segmental resection with safety margins is the best method to treat recurrences of OKC or ameloblastoma cases.
Odontogenic Tumours; Odontogenic Cysts; Recurrence; Conservative Treatment; Margins of Excision; Resection.
Copyright (c) 2020 Onur Yilmaz, Zeynep Sagnak Yilmaz, Emre Balaban, Celal Candirli (Author) https://creativecommons.org/licenses/by-nc-sa/4.0