Precisión en la posición de brackets con dos materiales de cementado indirecto. Ensayo clínico aleatorizado de boca dividida

Autores/as

DOI:

https://doi.org/10.15517/314s7y61

Palabras clave:

Recubrimiento dental adhesivo; Exactitud de los datos; Siloxanos; Siliconas; Soportes ortodóncicos; Ortodoncia; Ensayo clínico.

Resumen

Comparar la precisión en la posición de brackets de autoligado utilizando dos materiales para cubetas de transferencia de cementado indirecto: polivinilsiloxano (PVS) y adhesivo termofusible (HM), mediante un ensayo clínico aleatorizado con diseño de boca dividida (split-mouth). Ensayo clínico aleatorizado, unicéntrico, realizado en adultos con dentición permanente y apiñamiento leve (1,1-3,0 mm) en el arco superior. Los materiales de las cubetas de transferencia fueron asignados aleatoriamente a una hemiarcada superior. Pacientes, operadores de las mediciones y estadísticos estuvieron cegados. Se fabricaron 26 cubetas de transferencia (PVS, n=13; HM, n=13) y un operador experimentado realizó el cementado indirecto. El desenlace primario fue la precisión en la posición de los brackets, evaluada mediante desplazamientos en los ejes horizontal (mm), vertical (mm) y angular (°) entre las imágenes digitales obtenidas por escaneo intraoral antes (T0) y después (T1) de la transferencia. Los datos se analizaron mediante modelos lineales de efectos mixtos, estimándose diferencias de medias ajustadas e intervalos de confianza del 95%.Se analizaron 13 pacientes (edad media: 25.53 ± 9.45 años: índice de irregularidad de Little: 1.07±0.78mm) y 128 dientes. La reproducibilidad intra- e interoperador fue alta (mín.: 0,13; máx.: 0,25). No se encontraron diferencias estadísticamente significativas entre las cubetas de transferencia de PVS y HM para ninguno de los desenlaces evaluados. Todas las diferencias de medias ajustadas fueron pequeñas y los intervalos de confianza del 95% incluyeron el valor cero (p>0,05). Tanto las cubetas de transferencia de PVS como las de HM proporcionaron una posición precisa de los brackets. El HM representa una alternativa clínicamente viable para el cementado indirecto debido a su precisión satisfactoria y su potencial accesibilidad para un mayor número de pacientes y profesionales.

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Biografía del autor/a

  • Claudia V. Forero-Manrique, Professor, Department of Orthodontics CIEO University Foundation – UniCIEO, Bogotá, Colombia.

    clinical Professor in Postgraduate Program in Orthodontics, CIEO University Foundation – UniCIEO, Bogotá, Colombia

  • María M. Zamora-Pacheco, Professor, Department of Orthodontics CIEO University Foundation – UniCIEO, Bogotá, Colombia.

    Clinical professor in Postgraduate Program in Orthodontics, CIEO University Foundation – UniCIEO, Bogotá, Colombia.

  • Judith Patricia Barrera-Chaparro, Fundación Universitaria CIEO-UniCIEO

    Researcher and coordinator of  Research Department in Postgraduate Program in Orthodontics, CIEO University Foundation – UniCIEO, Bogotá, Colombia.

  • Edgar A. Ibáñez-Pinilla, Statistics Professor, CIEO University Foundation – UniCIEO, Bogotá, Colombia.

    Researcher and statistics professor in Postgraduate Programs, CIEO University Foundation – UniCIEO, Bogotá, Colombia.

  • Gabriela Nieto-González, Postgraduate Program in Orthodontics, CIEO University Foundation – UniCIEO, Bogotá, Colombia.

    Resident of postgraduate Program in Orthodontics, CIEO University Foundation – UniCIEO, Bogotá, Colombia.

  • María F. Pardo-León, Postgraduate Program in Orthodontics, CIEO University Foundation – UniCIEO, Bogotá, Colombia.

    Resident of postgraduate Program in Orthodontics, CIEO University Foundation – UniCIEO, Bogotá, Colombia.

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Publicado

2026-09-21

Número

Vol. 1 Núm. 1 (2026): ONLINE FIRST ODOVTOS-International Journal of Dental Sciences

Sección

Artículos de Investigación Clinica

Licencia

Derechos de autor 2026 Claudia V. Forero-Manrique, María M. Zamora-Pacheco, Judith P. Barrera-Chaparro, Edgar A. Ibáñez-Pinilla, Gabriela Nieto-González, María F. Pardo-León.

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