치과용 캐드캠 스캔전용 석고와 Type IV 석고로 제작된 작업모형의 표면조도 비교 연구
Comparative Study of the Surface Roughness of Working Models Fabricated by Dental CAD/CAM Scannable Stone and Type IV Gypsum Products
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초록
This study compared the surface roughness and surface characteristics between a type IV stone and scannable stone. Materials used were a type IV stone, two different kind of scannable stone. Ten specimens per experimental group were prepared according to manufacturerʼs direction. Surface roughness of specimen was measured using profilometer. The measurement was based on the standard of Japanese Industrial Standards 1994. The mean and standard deviations of each reference point were analyzed using one-way ANOVA and Scheffé post hoc test. The program used to handle statistical analysis was SPSS 20.0 and the significance level was set at 0.05. The difference of surface roughness was statistically significant in order of Scannable Stone 10.07±0.02 μm, Scannable Stone 20.08±0.03 μm, Type IV 0.10±0.04 μm. These results will have to be confirmed in further clinical application researches.
Abstract
This study compared the surface roughness and surface characteristics between a type IV stone and scannable stone. Materials used were a type IV stone, two different kind of scannable stone. Ten specimens per experimental group were prepared according to manufacturerʼs direction. Surface roughness of specimen was measured using profilometer. The measurement was based on the standard of Japanese Industrial Standards 1994. The mean and standard deviations of each reference point were analyzed using one-way ANOVA and Scheffé post hoc test. The program used to handle statistical analysis was SPSS 20.0 and the significance level was set at 0.05. The difference of surface roughness was statistically significant in order of Scannable Stone 10.07±0.02 μm, Scannable Stone 20.08±0.03 μm, Type IV 0.10±0.04 μm. These results will have to be confirmed in further clinical application researches.
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