Yıl 2016, Cilt: 50 Sayı : 2 Sayfalar 24 - 30 2016-04-01
DEBONDING OF CERAMIC BRACKETS BY ER:YAG LASER
Şeyda ERŞAHAN,Fidan ALAKUŞ SABUNCUOĞLU,Ergül ERTÜRK
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Öz Purpose: The objective of the present study is to evaluate the effects of Er:YAG laser debonding of ceramic brackets on the bond strength and the amount of adhesive resin remnant.Materials and Methods: Twenty human mandibular incisors were randomly divided into two groups of 10 and polycrystalline ceramic brackets (Transcend series 6000, 3M Unitek, Monrovia, CA, USA) were bonded on enamel surfaces. Group 1 was the control group in which no laser application was performed prior to the shear bond strength (SBS) testing. In Group 2, Er:YAG was applied in 3W power for 6 seconds using the scanning method. The brackets were tested for SBS with an Instronuniversal testing machine and results were expressed in megapascals (MPa). The amount of adhesive remnant was evaluated with Adhesive Remnant Index (ARI). One-way analysis of variance and Tukey’s post-hoc tests were used for statistical analysis.Results: Mean ± standard deviation of SBS values in the control group was 13.42 ±1.23 MPa and 8.47 ±0.71 MPa in the Er:YAG group and this difference was statistically significant (p<0.05). The evaluation of ARI scores demonstrated more adhesive was left on the enamel surface with Er:YAG group.Conclusion: 3W power Er:YAG laser application with the scanning method to polycrystalline ceramic brackets demonstrated lower bond strengths andhigher ARI scores during the debonding procedure.

Anahtar Kelimeler

Orthodontic bracket, Laser; Shear strength; Bracket debonding
Azzeh E, Feldon PJ. Laser debonding of ceramic brackets: A comprehensive review. Am J Orthod Dentofacial Orthop 2003;123(1):79-83.
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Konular
Yayımlanma Tarihi 1 Nisan 2016
Bölüm Araştırmalar / Original Articles
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Yayımlanma Tarihi : 1 Nisan 2016


Makalenin Yazarları
Şeyda ERŞAHAN
Fidan ALAKUŞ SABUNCUOĞLU
Ergül ERTÜRK