Marginal microleakage of bulk fill and nanohybrid resins in deciduous teeth

Authors

Keywords:

dental leakage, composite resins, primary tooth, dental materials.

Abstract

Introduction: In children's dental care it is crucial to select restorative materials of proven clinical quality and a short application period, particularly with patients of limited attention capacity. Due to their improved physical and mechanical properties, composite resins are currently one of the materials of choice for children's dental care. Bulk fill resins are an attractive alternative for posterior restorations. Objective: Compare the degree of marginal microleakage of bulk fill and nanohybrid resins in deciduous teeth. Methods: An experimental in vitro study was conducted of 40 deciduous teeth extracted for therapeutic reasons, which were divided into two groups. Group I: nanohybrid resin by incremental technique (Tetric® N Ceram – Ivoclar Vivadent) and Group II: bulk fill resin by monoincremental technique (Tetric® N Ceram bulk fill - Ivoclar Vivadent). A manual 500-cycle thermocycling procedure was performed at 5ºC ± 2ºC to 55ºC ± 2ºC. The samples were soaked in 0.5% methylene blue at 37ºC for 24 hours and analyzed under a light stereo microscope at 40X. Results: Microleakage was present in all the samples. In the nanohybrid resin group, microleakage was mild in 25%, moderate in 30% and severe in 45%. In the bulk fill resin group, microleakage was mild in 30%, moderate in 35% and severe in 35%. No significant difference was found between the groups (p = 0.55). Conclusions: Both resins, bulk fill and nanohybrid, presented similar in vitro marginal microleakage in deciduous molars. The bulk fill technique is therefore a good alternative for children's dental rehabilitation, due to its easy and fast application in a single session.

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Author Biographies

Sandra Vannesa Rojas Padilla, Universidad Nacional de Trujillo, Facultad de Estomatología, Departamento de Estomatología. Trujillo, Perú.

Docente contratada a tiempo completo en el Departamento de Estomatología de la Facultad de Estomatología de la Universidad Nacional de Trujillo. Perú

 

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Teresa Etelvina Ríos Caro, Universidad Nacional de Trujillo, Facultad de Estomatología, Departamento de Estomatología. Trujillo, Perú.

Decana de la Facultad de Estomatología de la Universidad Nacional de Trujillo.

Docente principal en el Departamento de Estomatología de la Facultad de Estomatología de la Universidad Nacional de Trujillo. Perú

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Published

2021-04-16

How to Cite

1.
Rojas Padilla SV, Ríos Caro TE. Marginal microleakage of bulk fill and nanohybrid resins in deciduous teeth. Rev Cubana Estomatol [Internet]. 2021 Apr. 16 [cited 2025 Feb. 6];58(2):e3278. Available from: https://revestomatologia.sld.cu/index.php/est/article/view/3278

Issue

Vol. 58 No. 2 (2021): APR- JUN

Section

Research Article

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