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Comparison of temperature rise within pulp chamber during light curing of composite restoration
Author(s) -
Dange Bhagyashree Suresh,
Mootha Ajay,
Madhav VNV,
Kale Sonal,
Nevrekar Siddhi,
Attargekar Vikas
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.50946
Subject(s) - curing (chemistry) , materials science , dentin , composite material , light intensity , composite number , thermocouple , silicone , pulp (tooth) , light guide , resin composite , dentistry , optics , light source , medicine , physics
In this study, total of 60 extracted human teeth were divided into four groups. Group I and II were subjected to LCU A (2550 mW/cm 2 ) and Group III and IV to LCU B (700 mW/cm 2 ), respectively. The increase in temperature level from baseline was recorded using K type thermocouple while curing of dentin bonding agent and composite resins. The temperature rise was significantly higher for Light Curing Unit A which had higher intensity light than Light Curing Unit B. Remaining dentin thickness of the prepared tooth also has significant role in the temperature rise. Hence, light curing units should be used with caution to avoid over‐exposure of teeth. Dental practitioners need to prepare teeth with silicone indices and pre‐assessment of radiographs to avoid over‐preparation. Regular check of intensity of light curing unit using commercially available intensity meter is advocated.