Earticle

초록

영어

Purpose: This study was to assess the extents of the release of metals from the non-precious alloys used for dental casting by measuring the differences in the extents of the release of metals by types of alloys, pH level and elapsed time. Methods: Uniform-sized specimens(10 each) were prepared according to the Medical Device Standard of the Korea Food and Drug Administration(2010) and International Standard Organization(ISO22674, 2006), using four types of alloys(one type of Ni-Cr and one type of Co-Cr used for fixed prosthesis, and one type of Ni-Cr and one type of Co-Cr used for removable prosthesis). A total of 12 metal-release tests were performed at one-day, threeday, and two-week intervals, for up to 20 weeks. The metal ions were quantified using an Inductively Coupled Plasma-Atomic Emission Spectrometer. Results: The results showed that the extent of corrosion was higher in the ascending order of Jdium-100 , Bellabond-Plus , Starloy-C , and Biosil-F . The lower the pH and the longer the elapsed time were, the greater the increase in metal corrosion. At pH 2.4, the release of Ni from Jdium-100 , a Ni-Cr alloy, was up to 15 times greater than the release of Co from the Co-Cr alloy from two weeks over time, indicating that the Ni-Cr alloy is more susceptible to corrosion than the Co-Cr alloy. Conclusion: It is recommended that Co-Cr alloy, which is highly resistant to corrosion, be used for making dental prosthesis with a non-precious alloy for dental casting, and that non-precious alloy prosthesis be designed in such a way as to minimize the area of its oral exposure. For patients with non-precious alloy prostheses, a test of the presence or absence of periodontal tissue inflammation or allergic reaction around the prosthesis should be performed via regular examination, and education on the good management of the prosthesis is needed

목차

Abstract
 Ⅰ. 서론
 Ⅱ. 연구 방법
  1. 실험 재료 및 시편 제작
  2. 부식용액의 제작
  3. 부식저항 실험
  4. 자료의 통계적 분석
 Ⅲ. 결과
  1. Starloy-CⓇ 합금의 pH에 따른 금속 용출 수준
  2. Bellabond-PlusⓇ 합금의 pH에 따른 금속 용출 수준
  3. Biosil-FⓇ 합금의 pH에 따른 금속 용출 수준
  4. Jdium-100Ⓡ 합금의 pH에 따른 금속 용출 수준
 Ⅳ. 고찰
 Ⅴ. 결론
 REFERENCES

키워드

저자

• 사공준 [ Joon Sakong | 영남대학교 의과대학 예방의학교실 ]
• 박수철 [ Soo-chul park | 김천대학교 치기공학과 ] 교신저자

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