Tooth discoloration and the effects of internal bleaching on the novel endodontic filling material SavDen® MTA.

Abstract

BACKGROUND/PURPOSE:

Mineral trioxide aggregate (MTA) was widely used in endodontic therapy as bioceramic material. Although MTA has high biocompatibility, it may lead to tooth discoloration. The aim of this study was to investigate the discoloration of two different bioceramic materials and the effects of internal bleaching.

METHODS:

Thirty single-canal mandibular premolars were extracted and randomly assigned to three groups (n = 10), white ProRoot® MTA, SavDen® MTA and a control group. Endodontic access opening, cleaning and shaping were performed, then the teeth were obturated using the two bioceramic materials. Tooth color was recorded at baseline, day 1, and 1, 2, 4, 6, 8, 12, 16, and 24 weeks after treatment. At the end of 24 weeks, sodium perborate was used to perform internal bleaching. Tooth color was recorded at 1, 2, and 6 weeks subsequently. Teeth were measured using a DeguDent® spectrophotometer, and data were transformed into Commission Internationale de l'Eclairage (CIE) L∗a∗b∗ system.

RESULTS:

Teeth treated with white ProRoot® MTA showed significant color change and decrease in L∗ value. Internal bleaching leaded to decrease of the ΔE∗ value for all three groups and increase in the L∗ value. There was no difference in tooth discoloration between SavDen® MTA and the control group after obturation and internal bleaching.

CONCLUSION:

In terms of visual perception, white ProRoot® MTA tends to cause black and blue discoloration. SavDen® MTA, formulated with calcium lactate gluconate, could be used to reduce tooth discoloration in endodontic treatment.

• Authors: Wan-Chun Yang, Liang-Yi Tsai, Yung-Hao Hsu, Nai-Chia Teng, Jen-Chang Yang, Sung-Chih Hsieh
• Journal: Journal of the Formosan Medical Association = Taiwan yi zhi (J Formos Med Assoc) Vol. 120 Issue 1 Pt 2 Pg. 476-482 (Jan 2021) ISSN: 0929-6646 [Print] Singapore
• PMID: 32600866 (Publication Type: Journal Article)
• Copyright: Copyright © 2020 Formosan Medical Association. Published by Elsevier B.V. All rights reserved.

Chemical References

• Aluminum Compounds
• Bleaching Agents
• Calcium Compounds
• Drug Combinations
• Oxides
• Root Canal Filling Materials
• Silicates
• mineral trioxide aggregate

Topics

• Aluminum Compounds (adverse effects)
• Bleaching Agents
• Calcium Compounds (adverse effects)
• Drug Combinations
• Humans
• Oxides (adverse effects)
• Root Canal Filling Materials (adverse effects)
• Silicates (adverse effects)
• Tooth Discoloration (chemically induced)