중형견(犬) 치과 보철물 제작을 위한 소재의 기계적 강도 관찰
Observation of Mechanical Strength of Materials for Dog Dental Prosthesis Production
박유진, 최성민,
소속 상세정보
박유진 ( Park Yu-Jin ) - 부산가톨릭대학교 치기공학과
최성민 ( Choi Sung-Min ) - 부산가톨릭대학교 치기공학과
Abstract
Purpose: This study is making a dog dental prosthesis using digital dental technology. The mechanical strength of the prosthetic material was observed in terms of compressive strength and fracture pattern.
Methods: The experiment was performed using dog mandibular molars. The teeth were scanned and modeled. The specimens were made of zirconia, PMMA and Ni-Cr. The specimens were subjected to a vertical compression test with an artificial cancellous bone in UTM tester. Vertical compressive strength and fracture behavior of specimen were observed.
Results: The result of observing the compressive load between specimen and artificial bone were 184.8 ± 5.7 N in the zirconia specimen, 185.6 ± 8.9 N in the PMMA specimen, and 184.4 ± 4.0 N in the Ni-Cr alloy specimen. Compression marks of artificial bones were observed. The fracture strength of specimen was observed. The fracture strength of the zirconia specimen was an average of 1,381.4N. The fracture strength of the PMMA specimen was an average of 572.2N.
Conclusion: The crown made of three kinds(zirconia, PMMA, Ni-Cr alloy) of materials has the strength to chew about the artificial bone. zirconia and PMMA have vertical compressive strength applicable to medium dog dental prosthetic materials.
키워드
dog tooth; dog restoration; animal tooth; zirconia; pmma; dental cad/cam
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