| Summary: | Resorption of the bone consistently ensue the use of denture. Hence, the
need for denture relining. Thermoplastic nylon as denture�s base material has
more flexibility than acrylic resin but lacks adhesiveness to the self
cured acrylic resin. A surface treatment is necessary to strengthen the shear
bond of self cured acrylic resin to thermoplastic nylon. The research was
aimed at perceiving the impact of surface treatment on the shear
bond strength of self cured acrylic resin, as the relining material of
thermoplastic nylon denture.
The experimental laboratory research consisted of subject 50 cylinder
self cured acrylic resin with a diameter of 5mm and height 3mm bonded to
the thermoplastic nylon plate (20x20x2)mm.
The treatment was tested on 5 different classifications of acetic acid,
sandblasting, silane, combination of acetic acid and silane, and combination
of sandblasting and silane, added to the surface treatment. The acquired data
were analyzed by one way anova and LSD post hoc.
The result indicated that the surface treatment had impacts on the shear
bond strength of thermoplastic nylon relined with self cured acrylic resin
(p<0.05). The post hoc test with LSD showed that the combination of
sandblasting and silane demonstrated greater shear bond strength compared
to the other four classification. Conclusion: surface treatment were able to
increase the shear bond strength of thermoplastic nylon that relined with self
cured acrylic resin. The sandblasting - silane combination showed
the highest shear bond strength
|
|---|