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CC BY-NC-ND 4.0 · Eur J Dent 2013; 07(03): 284-288
DOI: 10.4103/1305-7456.115411
Original Article
Dental Investigation Society

Are the low-shrinking composites suitable for orthodontic bracket bonding?

Suleyman Kutalmis Buyuk
1   Department of Orthodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
,
Kenan Cantekin
2   Department of Pediatric Dentistry, Faculty of Dentistry,Erciyes University, Kayseri, Turkey
,
Sezer Demirbuga
3   Department of Restorative Dentistry, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
,
Mehmet Ali Ozturk
4   Department of Orthodontics, Faculty of Dentistry, Izmir Katip Celebi University, Izmir, Turkey
› Author Affiliations
Further Information

Publication History

Publication Date:
26 September 2019 (online)

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ABSTRACT

Purpose: To evaluate the shear bond strength (SBS), adhesive remnant index (ARI), and microleakage of low-shrinking and conventional composites used as an orthodontic bracket bonding adhesive. Materials and Methods: A hundred twenty non-caries human premolars, extracted for orthodontic purposes, were used in this study. Sixty of them were separated into two groups. Brackets were bonded to the teeth in the test group with Silorane (3M-Espe) and control group with Transbond-XT (3M-Unitek). SBS values of these brackets were recorded in MPa using a universal testing machine. ARI scores were determined after the failure of brackets. The remaining 60 teeth were divided into two groups and microleakage was evaluated by the dye penetration method. Statistical analyses were performed by Wilcoxon, Pearson Chi-square, and Mann-Whitney U tests at P < 0.05 level. Results: The mean SBS for Transbond XT was significantly greater than low-shrinking composite (P < 0.001). Significant differences (χ2 =29.60, P < 0.001) were present between the two groups for the ARI scores. Microleakage values were lower in low-shrinking composite than in the control group, and this difference was found to be statistically significant (P < 0.001). Conclusions: Although low-shrinking composite produced insufficient SBS and ARI scores, microleakage values were lower in low-shrinking composite than in the control group on the etched enamel surfaces, when used as a bracket bonding composite.

Key words:

Minimally shrinkage composite - orthodontics - shear bond - silorane
 

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