The Effect of Surface Treatments on Tensile Bond Strength between a Silicone Soft Liner and a Heat-Cured Denture Base Resin

This study evaluated tensile bond strength of a denture soft lining material to a poly (methylmethacrylate) (PMMA) denture base resin subjected to different surface treatment modalities and thermocycling. The materials tested were a silicone-based liner, Molloplast B®, and a heat-cured denture base...

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Bibliographic Details
Published in:The Journal of adhesion 2011-09, Vol.87 (9), p.951-965
Main Authors: Soygun, Koray, Bolayir, Giray, Dogan, Arife, Demir, Hakan, Dogan, Orhan Murat, Keskin, Selda
Format: Article
Language:English
Subjects:
Bonding strength
Dental materials
Dentures
Lasing
PMMA
Polymers
Polymethyl methacrylates
Prosthetics
Resins
Sandblasting
Silicone soft liner
Tensile bonding
Thermal cycling
Thermocycling
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Summary:This study evaluated tensile bond strength of a denture soft lining material to a poly (methylmethacrylate) (PMMA) denture base resin subjected to different surface treatment modalities and thermocycling. The materials tested were a silicone-based liner, Molloplast B®, and a heat-cured denture base resin, Meliodent TM . The denture soft lining material was packed against cured PMMA base resin, which was smoothed; sandblasted with 250-μm Al 2 O 3 particles; or lased with a KTP laser; or against uncured PMMA dough (n = 10). In each group, five specimens were thermocycled in a water bath (5-55°C; 3000 cycles) before testing, whereas the other five were directly tested after 24 h. A tensile test was performed using a universal testing machine. Data showed that different treatment modalities of resin surfaces affected adhesion between these two materials and the highest bond values were recorded for cured/smoothed samples under each condition tested. Thermocycling of specimens had no significant reducing effect on measured bond strength values.
ISSN:0021-8464
1563-518X
1545-5823
DOI:10.1080/00218464.2011.601241