Comparative study of the bleaching outcomes in teeth discolored from triple antibiotic mixture as a root canal medication

Authors

Chalermkwan Phuvoravan
Patchara Posrithong
Tipanan Yanisarapan
Sopida Sumleerat

Publication Date

2013-09-01

Abstract

Objective To compare the bleaching outcomes of the three different bleaching materials in order to bleach nonvital tooth discolored after intracanal medication with triple antibiotic mixture. Materials and methods Thirty two human permanent maxillary central incisors were used. The root apices were cut. Coronal accesses and root canal preparation were performed. Root apices were sealed with sealant in order to allow 3 mm of root canal space for reservoir of bleaching agent and triple antibiotic mixture. All teeth were artificially stained using triple antibiotic mixture. After 7 days, the color change was measured by colorimeter on the labial surface of the crown. The teeth were divided into four groups (n = 8): group 1 control (without bleaching material), group 2 (35% carbamide peroxide), group 3 (35% hydrogen peroxide), group 4 (sodium perborate + sterile water = 2:1 g/ml). The bleaching agents were replaced every 7 days. The shade of teeth was evaluate again at 7, 14, 21 days. Results Group 3 (35% hydrogen peroxide) showed the highest mean of shade alteration, followed closely by group 2 (35% carbamide peroxide), while group 4 (sodium perborate) had the lowest mean of shade alteration. Statistic analysis revealed that group 2 and group 3 showed significant difference from control group. When considering time as variation factor, group 3 is the only group that showed significant difference from control group at day 7. Whereas group 2 can provide significant difference at day 14, and group 4 had significant difference only at day 21. Conclusion Thirty-five percent carbamide peroxide and 35% hydrogen peroxide were more effective than sodium perborate for intracoronal bleaching of teeth discolored with triple antibiotic therapy.

DOI

10.58837/CHULA.CUDJ.36.3.2

First Page

153

Last Page

164

Recommended Citation

Phuvoravan, Chalermkwan; Posrithong, Patchara; Yanisarapan, Tipanan; and Sumleerat, Sopida (2013) "Comparative study of the bleaching outcomes in teeth discolored from triple antibiotic mixture as a root canal medication," Chulalongkorn University Dental Journal: Vol. 36: Iss. 3, Article 2.
DOI: 10.58837/CHULA.CUDJ.36.3.2
Available at: https://digital.car.chula.ac.th/cudj/vol36/iss3/2