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Volume 9 Issue 1 (January, 2021)

Original Articles

Assessment of the fracture resistance of endodontically treated teeth treated with different bleaching agents
Kriti Dubey, Apoorva gupta, Tanmay Srivastava, Sparsh Srivastava, Shivam Shukla, Anuska Chakraborty

Background: The bleaching agents most commonly used for the whitening of discolored endodontically-treated teeth are hydrogen peroxide, carbamide peroxide and sodium perborate. The present study was conducted to assess the fracture resistance of endodontically treated teeth treated with different bleaching agents. Materials & Methods: 40 freshly extracted human mandibular premolars were divided into 4 groups and different bleaching treatment was applied. All the specimens were subjected to fracture resistance test using Universal Testing Machine. Results: The mean force (Newton) required to fracture specimens in group I was 964 N, in group II was 920 N, in group III was 1248 N, in group IV was 1248 N and in group IV was 1524 N. The difference was significant (P< 0.05). Conclusion: The use of 10% sodium ascorbate antioxidant gel is effective in compensating for the decreased fracture resistance of endodontically treated and bleached teeth. Key words: Bleaching, fracture resistance, sodium ascorbate.

 
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