Tensile bond strength between auto-polymerized acrylic resin and acrylic denture teeth treated with MF-MA solution
The Journal of Advanced Prosthodontics
;
: 285-289, 2016.
Article
in English
| WPRIM
| ID: wpr-97841
ABSTRACT
PURPOSE:
This study evaluated the effect of chemical surface treatment using methyl formate-methyl acetate (MF-MA) solution on the tensile bond strength between acrylic denture teeth and auto-polymerized acrylic resin. MATERIALS ANDMETHODS:
Seventy maxillary central incisor acrylic denture teeth for each of three different brands (Yamahachi New Ace; Major Dent; Cosmo HXL) were embedded with incisal edge downwards in auto-polymerized resin in polyethylene pipes and ground with silicone carbide paper on their ridge lap surfaces. The teeth of each brand were divided into seven groups (n=10) no surface treatment (control group), MF-MA solution at a ratio of 2575 (v/v) for 15 seconds, 30 seconds, 60 seconds, 120 seconds, 180 seconds, and MMA for 180 seconds. Auto-polymerized acrylic resin (Unifast Trad) was applied to the ground surface and polymerized in a pressure cooker. A tensile strength test was performed with a universal testing machine. Statistical analysis of the results was performed using two-way analysis of variance (ANOVA) and post-hoc Dunnett T3 test (α=.05).RESULTS:
The surface treatment groups had significantly higher mean tensile bond strengths compared with the control group (P.05), except for the Yamahachi New Ace MF-MA 180-second group (P<.05).CONCLUSION:
15-second MF-MA solution can be an alternative chemical surface treatment for repairing a denture base and rebonding acrylic denture teeth with auto-polymerized acrylic resin, for both conventional and cross-linked teeth.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Polymers
/
Silicon
/
Silicones
/
Tensile Strength
/
Tooth
/
Dentures
/
Polyethylene
/
Denture Bases
/
Incisor
Language:
English
Journal:
The Journal of Advanced Prosthodontics
Year:
2016
Type:
Article
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