Orthodontic bonding to several ceramic surfaces: Are there acceptable alternatives to conventional methods?
| Autor: | Sevinc Karan, Tamer Buyukyilmaz, M. Serdar Toroglu |
|---|---|
| Přispěvatelé: | Çukurova Üniversitesi |
| Rok vydání: | 2007 |
| Předmět: |
Ceramics
Dental Debonding Lithia disilicate Materials science Orthodontic Brackets Surface Properties Bond strength Orthodontic bonding Orthodontics Mandibular incisor Dental Porcelain Silane Orthodontics Corrective chemistry.chemical_compound chemistry Dentin-Bonding Agents visual_art Lithia visual_art.visual_art_medium Adhesive Ceramic Composite material Shear Strength |
| Zdroj: | American Journal of Orthodontics and Dentofacial Orthopedics. 132:144.e7-144.e14 |
| ISSN: | 0889-5406 |
| DOI: | 10.1016/j.ajodo.2006.12.006 |
| Popis: | PubMedID: 17693362 Introduction The objectives of this study were to determine the effects of various surface conditioning methods on 3 types of ceramic materials (feldsphatic, leucite-based, and lithia disilicate-based) in orthodontic bonding. Methods A total of 210 ceramic disk samples were fabricated and divided into 3 groups. In each group, 5 subgroups were prepared by sandblasting; sandblasting and hydrofluoric (HF) acid; sandblasting and silane; sandblasting, HF acid, and silane; and tribochemical silica coating and silane. Mandibular incisor brackets were bonded with light-cured adhesive. The samples were stored in water for 24 hours at 37°C and then thermocycled. Shear bond tests were performed, and the failure types were classified with adhesive remnant index scores. Results In all 3 ceramic groups, the lowest shear bond strength values were found in the sandblasted-only samples. For the feldspathic and lithia disilicate-based ceramic, the highest bond strength values were obtained with silica coating (15.2 and 13.2 MPa, respectively). For the leucite-based ceramic, HF without silane produced the highest bond strength value (14.7 MPa), but comparable values were obtained with silicatization also (13.4 MPa). Conclusions The silica-coating technique could replace the other conditioning techniques in bonding brackets to ceramic. However, debonding must be done carefully because of the risk of porcelain fracture. © 2007 American Association of Orthodontists. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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