We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Evaluation of the effect of denture base surface treatment on tensile bond strength of RTV Silicone soft denture liners.
- Authors
Nagarsekar, Aradhana; Aras, Meena
- Abstract
Brief Background: The purpose was to evaluate the effect of surface treatment on the bond strength of three room temperature vulcanized (RTV) silicone soft denture liners to an acrylic denture base resin. Materials and Methods: Acrylic resin samples were fabricated by a process of acrylisation. One end of half the acrylic samples was smoothened with 600 grit silicon carbide sand paper. One end of the remaining acrylic samples were roughened by sandblasting. Two samples of the same type of surface treatment were placed in a 3-piece custom made metal mould leaving 3 mm between the two samples in which the silicone liner was injected. Tensile debonding tests were performed and the mode of failure was characterized as adhesive, cohesive or mixed. Results: Statistically significant differences in bond strength were found among the three groups of soft liners. There was statistically significant influence of the surface treatment on the bond strength between Vocco soft liner and denture base material. Summary and Conclusions: All liner materials tested had bond strength suitable for clinical use. There was no significant influence of denture base surface treatment on the tensile bond strength of GC soft liner and Silagum soft liner. However, the bond strength between Vocco soft liner and denture base material was reduced when the bonding surface was roughened with sandblasting before application of silicone soft liner.
- Subjects
DENTURES; SURFACE preparation; BOND strengths; ACRYLIC resins; SILICONES; PROSTHODONTICS; THERAPEUTICS
- Publication
JIDA: Journal of Indian Dental Association, 2013, Vol 7, Issue 1, p20
- ISSN
0019-4611
- Publication type
Article