Earticle

초록

영어

Statement of problem: Conventional techniques for implant framework fabrication produce significant error that is inconsistent with passive-fit requirement for osseointegrated implants. One of the etiologic factors which cause the errors is a sprue which may deform the framework during solidification and contraction. Purpose: This study was aimed to evaluate objectively effect of the sprue design on the accuracy of fit of implant prosthesis. Materials and method: Three different designs were considered relative to effect of casting accuracy. The first design had straight sprues and a button of excess alloy at the non-casting end of the sprues. The second was runner bar design(with the button). The last was straight sprues design(without the button). Gold cylinder and laboratory analogue had been used to diminish variables affecting to casting accuracy. Gold alloy and pressure-vacuum casting machine had been used. Marginal gap had been measured by SEM. One-way ANOVA and Duncan test had been used for statistical analysis. Results: The first design showed 79.87+-13.95um marginal gap. The second and third were 40.17+-15.8um and 35.17+-9.95um respectively. Conclusion: Straight sprues without button and runner bar designs were more accurate than straight sprues with button design(P<.05).

목차

[Abstract]
 Ⅰ. 서 론
 Ⅱ. 연구재료 및 방법
 Ⅲ. 결 과
 Ⅳ. 고 찰
 Ⅴ. 결 론
 참 고 문 헌

키워드

저자

• 황성택 [ Hwang, Sung-Taek | 고려대학교 의학대학원(Department of medicine Graduate School, Korea University) ]
• 안재석 [ Ahn, Jae-Seok | 고려대학교 안산병원 치과기공실(Dental Laboratory, Korea University Medical Center Ansan Hospital) ] 교신저자
• 신상완 [ Shin, Sang-Wan | 고려대학교 구로병원 치과(Dental Center, Korea University Medical Center Guro Hospital) ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  대한치과기공학회지 [THE JOURNAL OF KOREAN ACADEMY OF DENTAL TECHNOLOGY]

• 간기

  계간

• pISSN

  1229-3954

• eISSN

  2288-5218

• 수록기간

  1979~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 515 DDC 617