An in-vitro study to compare the microleakage of three hybrid composite resin restorations
International Journal of Development Research
An in-vitro study to compare the microleakage of three hybrid composite resin restorations
Received 14th September, 2019; Received in revised form 17th October, 2019; Accepted 09th November, 2019; Published online 31th December, 2019
Copyright © 2019, Sergio Cavagnoli GUTH and Vinitius P aim B roglio ZUANAZZI. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Background: In an effort to combine the favorable physical and mechanical properties of conventional composites with the smooth surface typical of the microfilled composites, the hybrid composites were developed. Marginal adaptation of a restoration can be assessed by measuring the amount of microleakage at the interface area, after it has undergone contraction during polymerization. Objective: The aim of the present in-vitro study was to compare and evaluate the microleakage in class I cavity restored with hybrid composite. Method: Thirty freshly extracted human premolars were used. Standardized Class I cavity was prepared and randomly divided into 3 groups with 10 teeth in each group. The teeth in Group A was restored using Spectrum (Dentsply), Group B-Charisma (Kulzer) and Group C- Hybrid, LOT-FDH07U (Unicorn DenMart) and then subjected to thermocycling; immersion in 1% methylene blue dye for 24 hours; sectioning longitudionally; evaluation of microleakage under a stereomicroscope and scoring on an ordinal scale (0-4). The results were tabulated and subjected to Kruskal- Wallis and Mann- Whitney test for statistical analysis.
