Microleakage evaluation of silorane based composite versus methacrylate based composite.
OBJECTIVE
Our study aimed to analyze the microleakage of silorane-based composite in comparison to two homologous methacrylate-based composites.


METHODS
Standardized class I cavities (4 × 2.5 × 3 mm) were prepared on extracted human premolars and randomly assigned into three groups (N = 15) as follows: Group A, Filtek P90 (silorane) with its dedicated adhesive system (P90 system adhesive); Group B, Adper SE Plus with Filtek Z250; Group C, Peak SE with Amelogen Plus. The teeth were subjected to thermocycling regime (200×, 5-55°C) and dye penetration of tooth sections were evaluated following 30 minute immersion in 2% Methylene Blue dye. Statistical analysis was performed with Kruskal-Wallis and Mann-Whitney U test at 95% significance level.


RESULTS
Silorane exhibited significantly decreased microleakage compared with any other resin based composite (RBC). The cavities restored with Amelogen Plus displayed nonsignificantly higher microleakage than with Filtek Z250.


CONCLUSIONS
Although all of the restorative systems had microleakage, silorane technology showed less microleakage comparable to clinically successful methacrylate-based composite. This will improve the clinical performance and extend the composite durability.
Department of Operative Dentistry, School of Dentistry, Damascus University, Damascus, Syria.
Roula
R
Al-Boni
Ola M
OM
Raja