Bond Strength and Surface Roughness of Two Ceramics After Metal Bracket Debonding
| Autor: | Luciana P.B. Arcas, Kusai Baroudi, Caroline A.B. de Matos, Fabiana C. Ribeiro, Laís R. Silva-Concílio, Marina Amaral |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Turkish Journal of Orthodontics, Vol 36, Iss 3, Pp 194-198 (2023) |
| Druh dokumentu: | article |
| ISSN: | 2528-9659 2148-9505 |
| DOI: | 10.4274/TurkJOrthod.2022.2022.23 |
| Popis: | Objective:The aims of this study were to compare the bond strength between metallic brackets and two different glass ceramics and to evaluate the ceramic surface roughness after different finishing protocols.Methods:The surface roughness of lithium disilicate and resin matrix ceramic samples was measured (initial). All samples were treated with hydrofluoric acid and silane and bonded to metallic brackets with orthodontic cement adhesive. Shear bond strength tests were performed using a universal testing machine (n=12). The surface roughness was measured again (intermediate, n=6) after removing the remaining cement adhesive from the ceramic surfaces with a diamond or 24-blade bur after polishing the ceramic surfaces (final, n=6).Results:The resin matrix ceramic had the highest bond strength. The rotatory instrument used for the removal of cement adhesive did not affect the surface roughness of the resin matrix ceramic or lithium disilicate (p=0.985 and p=0.504, respectively), but did affect the evaluation time (p |
| Databáze: | Directory of Open Access Journals |
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