In vitro action of various carbamide peroxide gel bleaching agents on the micro hardness of human enamel
| Autor: | CH R Sunil, V Sujana, T Manisha Choudary, B Nagesh |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Contemporary Clinical Dentistry, Vol 3, Iss 2, Pp 193-196 (2012) |
| Druh dokumentu: | article |
| ISSN: | 0976-237X 0976-2361 |
| DOI: | 10.4103/0976-237X.96828 |
| Popis: | Aims and Objectives: The study was undertaken to evaluate the effects of different carbamide peroxide based gels on micro hardness of enamel exposed to these agents for a period of 8 h daily for a total of 1 week. Materials and Methods: Thirty enamel specimens of 5 x 5-mm dimensions were sectioned from labial surface of maxillary incisor teeth and were embedded in Bakelite. Each block is polished to facilitate micro hardness testing. Pre-bleaching hardness values of 30 samples were measured using Vickers micro hardness tester. After exposing the specimens for different agents for 8 h daily for 1 week, post-exposure micro hardness values were taken and evaluated. Conclusion: With increase in concentration of carbamide peroxide gel from 10% to 16%, mean micro hardness values decreased but to an insignificant level. |
| Databáze: | Directory of Open Access Journals |
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