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KMID : 0354619960080010121
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Journal Dankook Dental Research Institute
1996 Volume.8 No. 1 p.121 ~ p.134
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Surface Roughness of Porcelain by the Different Method of Scaling Treatment
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Abstract
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The accuracy of impressio taking is one of the most important factors for successful prosthodontic treatment The purpose of this study was to evaluate the tensile bend strength of impression materials to a tray resin. There have been many studies
to
evaluate the tensile bond strength to tray resin. Permanent distortion occurs when the impression materials are detached from the tray. This study tested the time-dependent tensile bond strength of commercial brands of polyether, polysulfide,
condensation, silicone, additional silicone impression materials when applying tray adhesives.
The results were statistically analyzed using the ANOVA and multiple range tests(Duncan's).
@ES The results were as follows ;
@EN 1 The mean tensile bond strength for the seven impression materials tested were significantly different(p<0.05). The greatest tensile bond strength 15.08kg/㎠) was produced using Silasco(r). The lowest tensile bond strength(4.84kg/㎠) was
produced
using Permlastic(r) light body.
2. There was significant change in tensile bond strength between 10 seconds and 10 minutes according to drying time of groups.
To achieve the greatest tensile bond strength, an adhesive should be applied on an acrylic resin tray and allowed the adhesive for drying about 5 to 10 minutes before impression taking.
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