A comparative study of different bleaching techniques, regarding the color change, stability and postoperative hypersensitivity: a randomized controlled clinical trial

Abstract

This article is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, sharing, adaptation, distribution and reproduction in any medium or format, for any purpose, even commercially, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. How to cite this article: Abouelfotouh IFI, Fahmy OMI, Khairy AE, Salah Eldine DM. A comparative study of different bleaching techniques, regarding the color change, stability and postoperative hypersensitivity: a randomized controlled clinical trial. Stomatological Dis Sci 2018;2:5. http://dx. Abstract Aim: In the management of patients with discolored teeth, would home bleaching alone or in combination with in-office bleaching give better tooth color stability than in-office bleaching? This study aimed to test the effect of different bleaching techniques on color change, stability, and hypersensitivity. Methods: A total of 21 patients were collected and randomly divided into 3 equal groups (n = 7), the first group in-office treatment with 25% hydrogen peroxide, the second group at-home bleaching with 9.5% bleaching treatment), and the third group in-office and at-home as a combined treatment. Testing for color stability was completed; at baseline, 1 day after, 1 week after, 1 month after, and 6 months after treatment using the VITA Easyshade® spectrophotometer. Testing for hypersensitivity was completed; immediately after treatment, 24 h after, 48 h after, and 1 week after treatment using a visual analog scale. Results: The current study found that there was no significant difference between mean values and standard deviation of the three bleaching techniques regarding color change (∆E) and stability in follow-up periods; hypersensitivity faded for all tested groups on a follow-up period of seven days. Conclusion: The different tested bleaching techniques showed similar clinical efficiencies in a follow-up period of 6 months. Also, the different tested techniques showed equal color stability. The different tested techniques presented a similar degree of hypersensitivity which faded in the 7 days follow-up.