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Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie

Published in:

01-05-2016 | Original Article

Different pulse modes of Er:YAG laser irradiation: effects on bond strength achieved with self-etching primers

Authors: Mehmet Akin, Ilknur Veli, Emire Aybuke Erdur, Sertac Aksakalli, Tancan Uysal

Published in: Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie | Issue 3/2016

Abstract

Objective

The aim of this study was to compare the effects of different pulse modes of Er:YAG laser on shear bond strength (SBS) of orthodontic brackets bonded with self-etching primers (SEP) and phosphoric acid etching.

Materials and methods

A total of 120 human mandibular third molars were randomly assigned to 3 groups of 40 specimens depending on the bonding procedure to be used. The groups were divided into two subgroups according to the pulse mode of the erbium-doped yttrium aluminum garnet (Er:YAG) laser irradiation as medium-short pulse (MSP) mode and quantum-square pulse (QSP) mode at 120 mJ, 10 Hz, 1.2 W. In each subgroup, the mesio- or distobuccal tooth surfaces were randomly assigned as experimental or control sides. After surface preparation with different modes of Er:YAG laser on experimental side, whole buccal tooth surfaces were treated with phosphoric acid etching or two different SEPs. Then metallic brackets were bonded with Transbond XT (3 M Unitek, Monrovia, CA, USA) or Kurasper F (Kuraray, Okayama, Japan). SBS values and the amount of adhesive remaining on the tooth after debonding were assessed. One-way analysis of variance (ANOVA) was used to evaluate the changes in mean SBS between groups resulting from laser etching, followed by post hoc test of Tukey.

Results

There were statistically significant differences between the experimental and control sides of all groups (p < 0.05).

Conclusion

Laser etching with QSP and MSP modes increases the SBS of metallic brackets and Er:YAG laser irradiation with QSP mode increases the SBS of SEPs.

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Title: Different pulse modes of Er:YAG laser irradiation: effects on bond strength achieved with self-etching primers
Authors: Mehmet Akin
Ilknur Veli
Emire Aybuke Erdur
Sertac Aksakalli
Tancan Uysal
Publication date: 01-05-2016
Publisher: Springer Berlin Heidelberg
Published in: Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie / Issue 3/2016
Print ISSN: 1434-5293
Electronic ISSN: 1615-6714
DOI: https://doi.org/10.1007/s00056-016-0019-3

At a glance: The STEP trials

Springer Medicine

Different pulse modes of Er:YAG laser irradiation: effects on bond strength achieved with self-etching primers

Abstract

Objective

Materials and methods

Results

Conclusion

At a glance: The STEP trials

Springer Medicine

Abstract

Objective

Materials and methods

Results

Conclusion

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