Effects of silica coating and silane surface conditioning on the bond strength of rebonded metal and ceramic brackets
| Autor: | Saadet Saglam Atsu, Bülent Çatalbaş, Ibrahim Erhan Gelgor |
|---|---|
| Přispěvatelé: | Kırıkkale Üniversitesi |
| Rok vydání: | 2011 |
| Předmět: |
Ceramics
Time Factors Materials science Surface Properties Orthodontic brackets Composite Resins chemistry.chemical_compound Materials Testing Aluminum Oxide Shear strength Humans Ceramic Composite material Bond General Dentistry Universal testing machine Chi-Square Distribution Bond strength Bracket Dental Bonding Original Articles Silanes Silicon Dioxide Silane lcsh:RK1-715 chemistry lcsh:Dentistry visual_art Silanization Microscopy Electron Scanning visual_art.visual_art_medium Adhesive |
| Zdroj: | Journal of Applied Oral Science, Volume: 19, Issue: 3, Pages: 233-239, Published: JUN 2011 Journal of Applied Oral Science v.19 n.3 2011 Journal of applied oral science Universidade de São Paulo (USP) instacron:USP Journal of Applied Oral Science, Vol 19, Iss 3, Pp 233-239 (2011) Journal of Applied Oral Science |
| ISSN: | 1678-7757 |
| DOI: | 10.1590/s1678-77572011000300010 |
| Popis: | Gelgor, I. Erhan/0000-0003-0859-9874 WOS: 000291055000010 PubMed: 21625739 Objective: The aim of this study was to evaluate the effects of tribochemical silica coating and silane surface conditioning on the bond strength of rebonded metal and ceramic brackets. Material and Methods: Twenty debonded metal and 20 debonded ceramic brackets were randomly assigned to receive one of the following surface treatments (n=10 for each group): (1) sandblasting (control); (2) tribochemical silica coating combined with silane. Brackets were rebonded to the enamel surface on the labial and lingual sides of premolars with a light-polymerized resin composite. All specimens were stored in distilled water for 1 week and then thermocycled (5,000 cycles) between 5-55 degrees C. Shear bond strength values were measured using a universal testing machine. Student's t-test was used to compare the data (alpha=0.05). Failure mode was assessed using a stereomicroscope, and the treated and non-treated bracket surfaces were observed by scanning electron microscopy. Results: Rebonded ceramic brackets treated with silica coating followed by silanization had significantly greater bond strength values (17.7 +/- 4.4 MPa) than the sandblasting group (2.4 +/- 0.8 MPa, P |
| Databáze: | OpenAIRE |
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