Dental bleaching agents with calcium and their effects on enamel microhardness and morphology

• প্রধান লেখক: Andréia Mara Andrade Pizani (Author), Beatriz Tholt (Author), Katia Regina Hostilio Cervantes Dias (Author), Pedro Paulo Albuquerque Cavacanti de Albuquerque (Author), Celso Silva Queiroz (Author)
• বিন্যাস: গ্রন্থ
• প্রকাশিত: Universidade Estadual de Campinas, 2015-07-01T00:00:00Z.
• বিষয়গুলি: article
• অনলাইন ব্যবহার করুন: Connect to this object online.

সংক্ষিপ্ত

Aim: To evaluate enamel microhardness and morphology after bleaching with hydrogen peroxide containing calcium in different concentrations. Methods: One hundred specimens of human teeth were ground and polished and had the initial microhardness evaluated. The specimens were randomly assigned into five groups (n=20): Group 1 - Control group (no treatment); Group 2 - Home Peroxide 6% (without calcium); Group 3 - Home Peroxide 7.5% (without calcium); Group 4 - White Class 6% (with calcium); Group 5 - White Class 7.5% (with calcium). For each group, the bleaching was performed according to the manufacturer's specifications. The specimens were bleached once a day for 5 days and subjected to pH cycling. Microhardness and scanning electron microscopy (SEM) analysis were performed before and after bleaching. Results: The results showed that groups submitted to bleaching treatment presented hardness loss compared to the control group. The group of 7.5% hydrogen peroxide with calcium showed a lower percentage of hardness loss in relation to other groups. Conclusion: Calcium in association with a higher hydrogen peroxide concentration may decrease microhardness changes on enamel.

উপাদানের বিবরণ

10.20396/bjos.v14i2.8640831
1677-3225