Effects of reducing light-curing time of a high-power LED device on shear bond strength of brackets
| Autor: | Lídia Parsekian Martins, Layene Figueiredo Almeida, Renato Parsekian Martins |
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| Přispěvatelé: | Universidade Estadual Paulista (Unesp) |
| Rok vydání: | 2018 |
| Předmět: |
Dental Stress Analysis
Curing Lights Dental Time Factors Materials science Orthodontic Brackets Surface Properties Composite number Orthodontics Orthodontic brackets Dental bonding In Vitro Techniques Light curing 03 medical and health sciences 0302 clinical medicine Dental cement Humans Dental enamel Bicuspid Composite material 030223 otorhinolaryngology Curing (chemistry) Light-Curing of Dental Adhesives Dental cements Enamel paint Dental Bonding 030206 dentistry Shear bond Resin Cements Light curing of dental adhesives visual_art Microscopy Electron Scanning visual_art.visual_art_medium Adhesive Oral Surgery Shear Strength Software |
| Zdroj: | Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1615-6714 1434-5293 |
| Popis: | Made available in DSpace on 2018-11-26T17:55:02Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-09-01 Purpose To assess the effects of reducing the curing time of a high-power light-emitting diode (LED) unit (Valo, Ultradent, South Jordan, UT, USA) on shear bond strength (SBS) of metal brackets and on the amount of adhesive remnant of two orthodontic composites. Methods Eighty human premolars were divided into four groups (G1-4) according to curing time and composite: G1 (Transbond XT, 6s), G2 (Opal Bond MV, 6s), G3 (Transbond XT, 3s), and G4 (Opal Bond MV, 3s). Twenty-four hours after bonding, brackets were subject to a SBS test performed with a universal testing machine. Enamel surface was analyzed by SEM and the amount of adhesive remnant was assessed by the Image J software area calculation tool. Two-way analysis of variance was used for statistical analysis of SBS data, while Friedman and Mann-Whitney post hoc tests were used to analyze data on the amount of adhesive remnant. Results Time and composite significantly affected SBS (p |
| Databáze: | OpenAIRE |
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