치과용 바렐연마를 이용한 치과용 합금의 부피와 무게의 변화율 관찰
Observation of the change rate of volume and weight of dental alloy using dental barrel finishing
고현정, 박유진, 최성민,
소속 상세정보
고현정 ( Ko Hyeon-Jeong ) -
박유진 ( Park Yu-Jin ) -
최성민 ( Choi Sung-Min ) -
Abstract
Purpose: This study aimed to provide the basic data for dental barrel finishing by observing the abrasiveness of the metal body according to the time of the barrel finishing.
Methods: This study included three types of Co-Cr alloys. The specimens were manufactured by casting method using 10-mm diameter wax spheres (n=10). The cast alloys were polished for 60 minutes at intervals of 5 minutes in barrel finishing. The weight and volume of the specimens were measured, and the rate of change was calculated. The data obtained from the three groups (α=0.05) were compared and analyzed using one-way ANOVA.
Results: As a result, the overall volume and weight of the group decreased after grinding compared with the control group.
Conclusion: When grinding dental barrel finishing, no difference was observed in the processing rate depending on the type of alloy and the processing rate of the alloy body is within 30 minutes; hence, dental barrel finishing can be effectively used for grinding.
키워드
Barrel finishing; Co-Cr alloy; Grinding time; Volume; Weight
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