대한치과기공학회지 (Journal of Technologic Dentistry)
- 제21권1호
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- Pages.77-85
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- 1999
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- 1229-3954(pISSN)
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- 2288-5218(eISSN)
국부의치 제작에 사용되는 Chrome Cobalt Alloy 주조 시 매몰방법과 주조방향이 주조성에 미치는 영향에 관한 연구
A Study on the Castability of Investing Method and Casting Direction of Chrome-Cobalt Alloy Widely Used in Production of Patial Denture Framework
- Chung, Kyung-Pung (Dept. of Dental Laboratory Technology Won Kwang Health Science College) ;
- Choi, Un-Jae (Dept. of Dental Laboratory Technology Won Kwang Health Science College)
- 발행 : 1999.07.01
초록
When producing partial denture using a Chrome-cobalt alloy being used universally, 45 pattern of them to compare casting characters according to 5 burying methods(special ring method, plastic ring method, general metal ring method) and 5 casting directions(straight, upper, lower, left and right directions) were compared and evaluated. The results were as follows : 1. The comparison of casting characters in accordance with burying type shows that the special ring method to install blind air vent using utility wax was the highest rate of 76.9%, followed by 69.1% of the plastic ring to cast without ring and 61.1% of the metal ring method being used universally respectively. Namely the special ring method was best. The significant level was P<0.05 statistically. 2. The comparison of casting character in accordance with casting directions shows that the straight casting was the highest of 77.9%, and followed by right casting of 74.2%, left casting of 66.7%, upper casting of 63.5%, and lower casting of 62.9% respectively, Namely the straight casting was best.
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