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Microtensile bond strength of self-etch adhesives in different surface conditionings

Type:  Articles

Pubblication date:  20/2012

Authors:  A. Sohrabi1, M. Amini2, B. M. Afzali3, A. Ghasemi4, A. Sohrabi3, S. M. Vahid Pakdel6

Language:  English

Institution:  Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran 1Assistant Professor of Orthodontics 2Post-graduate Student of Endodontics 3Assistant Professor of Pediatric Dentistry 4Associate Professor of Restorative Dentistry, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences 6 Post-graduate Student of Prosthodontics

Publication:  European Journal of Paediatic Dentistry

Publisher:  Ariesdue Srl

Keywords:  Microtensile bond strength; Primary teeth; Self etch adhesive.

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Email:  [email protected]

Title:  Microtensile bond strength of self-etch adhesives in different surface conditionings

Abstract:  Aim Self-etch bonding systems have been introduced recently and have the advantage of reduced operating time. Because of patient management and isolation difficulties in children, the present study aimed to evaluate microtensile bond strength of two self-etch bonding systems (AdheSE and Xeno® III) on cleaned only, ground and sandblasted enamel. Materials and methods Thirty intact primary molars were selected and randomly divided into two groups according to the type of bonding used (Xeno® III and AdheSE). The teeth were divided into three subgroups according to enamel surface conditioning method: prophylaxis with pumice, grinding with coarse finishing and polishing disc, and sandblasting with aluminum oxide particles. Tetric Ceram composite then was applied. Samples were sectioned coronally and axially. The interface area of dental sticks was measured and specimens were subjected to a tensile force of 0.5 mm/min until failure. Results Microtensile bond strength of Xeno® III-sandblasting, AdheSE-sandblasting, AdheSE-grinding, and AdheSE-cleaned only were 25.5±7.7, 21.2±2.3, 12.9±2.2, and 9.1±1.1, respectively. During sectioning, all specimens of Xeno® III-cleaned only and Xeno® III-grinding groups were fractured. Conclusions Two step AdheSE yields higher mTBS in comparison to one step Xeno ® III. In regard to surface conditioning, sandblasting increases the mTBS relative to grinding with finishing and polishing disc, and the cleaned-only enamel has the lowest mTBS.

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