AUTHOR(S): Dr. Pragya Patel, Dr. Sanjeev Tyagi, Dr. Abhishek Bajolia, Dr. Neha Bedwal, Dr. Manoj Jain and Dr. Ankita Bhargava

ABSTRACT:This in-vitro study was done to compare the effect of LED light curing system on polymerization and hardness of two composite resins system. A Total of 40 samples, 20 samples prepared using silorane based – Filtek LS and 20 samples prepared using methacrylate based- Filtek Z350 XT in a plastic molds with diameter of 8 mm and thickness of 3 mm and cured with LED curing light. knoop hardness testing was done using a 50grams load and a dwell time of 15sec and percentage depth of cure is calculated and statistical analysis was performed using Student t- test. Results showed that silorane based composite was found to have better hardness n depth of cure than methacrylate based composite. Top surface have better hardness than bottom surface.

DOI: https://doi.org/10.22271/oral.2021.v7.i3b.1286

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