Analysis of enamel surface roughness after different adhesive removal techniques for orthodontic bracket debonding

Analysis of enamel surface roughness after different adhesive removal techniques for orthodontic... Background The objectives of this study were to explore traditional resin removal procedures in the debonding process and evaluate the Er:YAG laser as a plausible option. Methods Sixty premolar teeth were bonded with brackets. Then, brackets were removed and five adhesive clean-up methods were tested against control teeth: (a) Er:YAG laser at 200 mJ and 20 Hz; (b) Er:YAG laser at 305 mJ and 10 Hz; (c) 20-fluted flame-shaped tungsten carbide bur at high-speed; (d) #8-fluted round tungsten carbide bur at low-speed; and (e) #5 round end tapered fine diamond bur at high speed. Quantitative measurements including average (Avg) profile height, total indicator run-out (TIR), arithmetic average roughness (R ), and time were made using profilometry. Qualitative evaluation of tooth surfaces was done using SEM. Results The two laser settings produced a statistically higher TIR, R , and time compared to the controls (P < 0.001). There was no statistical difference between the three bur techniques in regards to surface texture or time. Qualitatively, the 20-fluted carbide bur left the smoothest surface. Conclusion The Er:YAG laser at the tested settings would not be appropriate for adhesive removal. The interaction of the Er:YAG wavelength under these conditions was not comparable http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Lasers in Dental Science Springer Journals

Analysis of enamel surface roughness after different adhesive removal techniques for orthodontic bracket debonding

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Publisher
Springer International Publishing
Copyright
Copyright © 2018 by Springer International Publishing AG, part of Springer Nature
Subject
Dentistry; Dentistry; Optics, Lasers, Photonics, Optical Devices
eISSN
2367-2587
D.O.I.
10.1007/s41547-018-0024-5
Publisher site
See Article on Publisher Site

Abstract

Background The objectives of this study were to explore traditional resin removal procedures in the debonding process and evaluate the Er:YAG laser as a plausible option. Methods Sixty premolar teeth were bonded with brackets. Then, brackets were removed and five adhesive clean-up methods were tested against control teeth: (a) Er:YAG laser at 200 mJ and 20 Hz; (b) Er:YAG laser at 305 mJ and 10 Hz; (c) 20-fluted flame-shaped tungsten carbide bur at high-speed; (d) #8-fluted round tungsten carbide bur at low-speed; and (e) #5 round end tapered fine diamond bur at high speed. Quantitative measurements including average (Avg) profile height, total indicator run-out (TIR), arithmetic average roughness (R ), and time were made using profilometry. Qualitative evaluation of tooth surfaces was done using SEM. Results The two laser settings produced a statistically higher TIR, R , and time compared to the controls (P < 0.001). There was no statistical difference between the three bur techniques in regards to surface texture or time. Qualitatively, the 20-fluted carbide bur left the smoothest surface. Conclusion The Er:YAG laser at the tested settings would not be appropriate for adhesive removal. The interaction of the Er:YAG wavelength under these conditions was not comparable

Journal

Lasers in Dental ScienceSpringer Journals

Published: Feb 20, 2018

References

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