Tags

Type your tag names separated by a space and hit enter

Effect of traditional and alternative intracoronal bleaching agents on microhardness of human dentine.
J Oral Rehabil. 2004 Aug; 31(8):811-6.JO

Abstract

The purpose of this study was to compare the effect of traditional and alternative bleaching agents on microhardness of human dentine when used intracoronally. Thirty-six premolars were divided into six groups and bleaching agents were sealed into the pulp chambers as follows: group 1--distilled water (control), group 2--30% hydrogen peroxide solution, group 3--sodium perborate mixed with distilled water, group 4--sodium perborate mixed with 30% hydrogen peroxide solution, group 5--35% carbamide peroxide gel, group 6--35% hydrogen peroxide gel. Access cavities were sealed and the teeth were stored in distilled water at 37 degrees C. After 7 days, each tooth was sectioned at the cemento-enamel junction level and microhardness testing was carried out on dentine. The results showed that treatment with 35% hydrogen peroxide gel, 30% hydrogen peroxide solution and 35% carbamide peroxide gel reduced the microhardness of outer dentine to a small extent while treatment with sodium perborate mixed with water and sodium perborate mixed with 30% hydrogen peroxide solution did not significantly alter the microhardness of dentine.

Authors+Show Affiliations

Faculty of Dentistry, Department of Restorative Dentistry, National University of Singapore, Singapore. rsdchk@nus.edu.sgNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

15265219

Citation

Chng, H K., et al. "Effect of Traditional and Alternative Intracoronal Bleaching Agents On Microhardness of Human Dentine." Journal of Oral Rehabilitation, vol. 31, no. 8, 2004, pp. 811-6.
Chng HK, Yap AU, Wattanapayungkul P, et al. Effect of traditional and alternative intracoronal bleaching agents on microhardness of human dentine. J Oral Rehabil. 2004;31(8):811-6.
Chng, H. K., Yap, A. U., Wattanapayungkul, P., & Sim, C. P. (2004). Effect of traditional and alternative intracoronal bleaching agents on microhardness of human dentine. Journal of Oral Rehabilitation, 31(8), 811-6.
Chng HK, et al. Effect of Traditional and Alternative Intracoronal Bleaching Agents On Microhardness of Human Dentine. J Oral Rehabil. 2004;31(8):811-6. PubMed PMID: 15265219.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of traditional and alternative intracoronal bleaching agents on microhardness of human dentine. AU - Chng,H K, AU - Yap,A U J, AU - Wattanapayungkul,P, AU - Sim,C P C, PY - 2004/7/22/pubmed PY - 2004/11/9/medline PY - 2004/7/22/entrez SP - 811 EP - 6 JF - Journal of oral rehabilitation JO - J Oral Rehabil VL - 31 IS - 8 N2 - The purpose of this study was to compare the effect of traditional and alternative bleaching agents on microhardness of human dentine when used intracoronally. Thirty-six premolars were divided into six groups and bleaching agents were sealed into the pulp chambers as follows: group 1--distilled water (control), group 2--30% hydrogen peroxide solution, group 3--sodium perborate mixed with distilled water, group 4--sodium perborate mixed with 30% hydrogen peroxide solution, group 5--35% carbamide peroxide gel, group 6--35% hydrogen peroxide gel. Access cavities were sealed and the teeth were stored in distilled water at 37 degrees C. After 7 days, each tooth was sectioned at the cemento-enamel junction level and microhardness testing was carried out on dentine. The results showed that treatment with 35% hydrogen peroxide gel, 30% hydrogen peroxide solution and 35% carbamide peroxide gel reduced the microhardness of outer dentine to a small extent while treatment with sodium perborate mixed with water and sodium perborate mixed with 30% hydrogen peroxide solution did not significantly alter the microhardness of dentine. SN - 0305-182X UR - https://www.unboundmedicine.com/medline/citation/15265219/Effect_of_traditional_and_alternative_intracoronal_bleaching_agents_on_microhardness_of_human_dentine_ DB - PRIME DP - Unbound Medicine ER -