새롭게 개발된 치과용 알루미나 세라믹 드레서의 입자 크기에 따른연삭 마모 특성의 비교 (Comparison of abrasive wear characteristics according to particle size of newly developed dental alumina ceramic dressers)

서지정보

· 발행기관 : 대한치과기공학회
· 수록지 정보 : 대한치과기공학회지 / 46권 / 3호 / 107 ~ 113페이지
· 저자명 : Soo-Chul Park, Jong-Kyoung Park

초록

Purpose: This study aimed to develop dental alumina ceramic dressers, evaluate their abrasive wear characteristics based on particle size, and identify dental dressers with optimal particle size and performance.
Methods: Commercial ceramic dressers (n=5) were selected as the control group, whereas alumina ceramic dressers with 80-grit and 120-grit particles were fabricated as the experimental groups (n=5 each). Prepared specimens were assessed for surface roughness, wear resistance, and abrasiveness against a wear-inducing element (SUS304 stainless steel ball). Means and standard deviations were calculated for each test. Statistical analysis was performed using the Kruskal–Wallis H test with Bonferroni correction (α=0.05) via SPSS Statistics ver. 23.0 (IBM).
Results: Surface roughness was highest in the 80-grit group (22.734±1.308 μm), followed by 120-grit group (21.804±0.785 μm), and lowest in control group (15.782±0.223 μm).
Wear resistance was greatest in 120-grit group (0.007±0.002 g), followed by the 80-grit group (0.007±0.004 g), and lowest in the control group (0.370±0.010 g). Furthermore, abrasiveness against the wear-inducing element (SUS304 stainless steel ball) was highest in 120-grit group (0.017±0.003 g), followed by the 80-grit group (0.015±0.003 g), and lowest in control group (0.010±0.001 g).
Conclusion: Based on the combined results of surface roughness, wear resistance, and abrasiveness against a wear-inducing element, the newly developed alumina ceramic dressers show promise for clinical application.

영어초록

Purpose: This study aimed to develop dental alumina ceramic dressers, evaluate their abrasive wear characteristics based on particle size, and identify dental dressers with optimal particle size and performance.
Methods: Commercial ceramic dressers (n=5) were selected as the control group, whereas alumina ceramic dressers with 80-grit and 120-grit particles were fabricated as the experimental groups (n=5 each). Prepared specimens were assessed for surface roughness, wear resistance, and abrasiveness against a wear-inducing element (SUS304 stainless steel ball). Means and standard deviations were calculated for each test. Statistical analysis was performed using the Kruskal–Wallis H test with Bonferroni correction (α=0.05) via SPSS Statistics ver. 23.0 (IBM).
Results: Surface roughness was highest in the 80-grit group (22.734±1.308 μm), followed by 120-grit group (21.804±0.785 μm), and lowest in control group (15.782±0.223 μm).
Wear resistance was greatest in 120-grit group (0.007±0.002 g), followed by the 80-grit group (0.007±0.004 g), and lowest in the control group (0.370±0.010 g). Furthermore, abrasiveness against the wear-inducing element (SUS304 stainless steel ball) was highest in 120-grit group (0.017±0.003 g), followed by the 80-grit group (0.015±0.003 g), and lowest in control group (0.010±0.001 g).
Conclusion: Based on the combined results of surface roughness, wear resistance, and abrasiveness against a wear-inducing element, the newly developed alumina ceramic dressers show promise for clinical application.

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