In vitro bond strengths post thermal and fatigue load cycling of sapphire brackets bonded with self-etch primer and evaluation of enamel damage
| Autor: | Sanjukta Deb, Van P. Thompson, Noor R. Al-Hasani, Ali I. Ibrahim |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Enamel paint Bond strength Scanning electron microscope Research Bracket Orthodontics 030206 dentistry CIENCIAS MÉDICAS [UNESCO] 03 medical and health sciences stomatognathic diseases 0302 clinical medicine Self etch stomatognathic system 030220 oncology & carcinogenesis visual_art UNESCO::CIENCIAS MÉDICAS visual_art.visual_art_medium Sapphire Ceramic Adhesive Composite material General Dentistry |
| Zdroj: | Ibrahim, Ali I. ; Al-Hasani, Noor R. ; Thompson, Van P. ; Deb, Sanjukta. In vitro bond strengths post thermal and fatigue load cycling of sapphire brackets bonded with self-etch primer and evaluation of enamel damage. En: Journal of Clinical and Experimental Dentistry, 12 1 2020: 22-30 RODERIC: Repositorio Institucional de la Universitat de Valéncia instname Journal of Clinical and Experimental Dentistry RODERIC. Repositorio Institucional de la Universitat de Valéncia |
| Popis: | Background This in vitro study compares a self-etch primer (SEP) to an etch-and-rinse (EaR) for bonding sapphire brackets by evaluation of the enamel etch-pattern, shear bond strength, amount of remnant adhesive and enamel surface damage following thermal and fatigue cyclic loading. Material and Methods Ceramic (sapphire) brackets were bonded to 80 extracted human premolars using two enamel etching protocols: conventional EaR using 37% phosphoric acid (PA) gel (control), and a SEP (Transbond Plus). Each group was subdivided into two subgroups (n=20 teeth) according to the time of bracket debonding: after 24 h water storage or following 5000 thermo-cycles plus 5000 cycles fatigue loading, to determine the shear bond strength (SBS), adhesive remnant index (ARI score), with scanning electron microscopy (SEM) evaluation of enamel condition. Results The control subgroups consistently exhibited significantly higher (p |
| Databáze: | OpenAIRE |
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