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- Title
Effect of flame cleaning of ceramic surface on the bond strength of composite to ceramic.
- Authors
OH, W.‐S.; SHEN, C.
- Abstract
This study tested the hypothesis that flame cleaning of ceramic surface would increase the bond strength of composite to ceramic than pressure-vaporized steam cleaning. Eris and IPS-Empress ceramic blocks were fabricated, polished (control), airborne-particle abraded with 50-μm alumina particle (A), etched with 5% hydrofluoric acid gel for 2 min (E), or treated with a combination of A and E (AE). They were subjected to either steam cleaning for 20 s or flame cleaning over a gas burner for 2 s. Followed by an application of an adhesive resin, a composite was built-up. Twenty micro-tensile test specimens (≈0·9 × 0·9 × 16 mm) were obtained from each group and loaded to failure under tensile force using a universal testing machine at a crosshead speed of 0·5 mm min−1.anovashowed statistically significant differences in the mean bond strength by ceramic, surface roughness, and cleaning method (P < 0·0001). The groupings of the mean bond strength were as follows: flame-cleaned > steam-cleaned; IPS-Empress > Eris; and AE > E > A for IPS-Empress and AE > E ≈ A for Eris (Duncan's multiple analysis;α=0·05). Thisin vitrostudy suggests that mechanical bond of composite to ceramic can be improved with flame cleaning of ceramic surface.
- Subjects
DENTAL ceramics; DENTAL adhesives; DENTAL resins; SYNTHETIC gums &; resins; DENTAL materials; ORTHODONTICS; DENTISTRY
- Publication
Journal of Oral Rehabilitation, 2005, Vol 32, Issue 2, p141
- ISSN
0305-182X
- Publication type
Article
- DOI
10.1111/j.1365-2842.2004.01398.x