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  • QBCT를 이용한 임플란트 보철 후 골밀도 평가
  • Bone density assessment of implant prosthesis using QBCT
저자명
정다운
간행물명
Journal of Dental Implant Research
권/호정보
2015년|34권 3호(통권47호)|pp.67-75 (9 pages)
발행정보
대한치과이식임플란트학회|한국
파일정보
정기간행물|KOR|
PDF텍스트(0.62MB)
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국문초록

치과 임플랜트는 골과 금속이 연조직의 개재 없이 직접 접착된다 는 골유착 개념이 보고된 이후 현재 임상적으로 널리 이용되고 있는 술식이다1,2). 임플랜트 보철물이 구강 내에서 성공적으로 기능을 수 행하기 위해서는 정확한 진단, 적절한 임플랜트의 선택 및 수술, 지 대주의 적절한 선택, 수복물의 외형등을 고려하고 더불어 구강 내에 서의 교합력에 대하여 잘 지지하여야 한다3).

영문초록

Purpose: The purpose of this study was to evaluate internal conical abutment sinking and fitness according to the loading condition. Materials and Method: In this study, Alloden implant fixture and two abutment (conventional, FDI) systems were used. Each abutment was applied 1 time of finger force, 3 times of malleting force, 5 times of 20 kg and extra several times to the fixture until the amount of abutment singking showed no change. Then, the length of abutment to fixture which was binding lightly with no pressure state was measured by Vernier caliper. After loading application, the length was remeasured and the amount of sinking was calculated. The implant was buried in unsaturated polyester (Epovia, Cray Valley Inc. Korea) for making a comparison between the change of length and fitness of abutment-fixture connection part. Then All samples were cross-sectioned with high speed precision cut-off (accutom-5, Struers, Denmark). Finally, The result were observed and analyzed using FE-SEM (field emission scanning electron microscopy). Results: The results were as follows: 1. When the fixture connected to the abutment, the finger force was about 5.91±0.58 kg and the malleting force was about 3.35±0.29 kg. 2. As the result of masticatory force load after connecting abutment to fixture, the fitness of fixture-abutment interface showed almost tight contact each other. 3. As the loading condition being added, the abutment showed more sinking phase. 4. In consequence of loading application until the amount of sinking had no change, conventional abutment showed 0.51±0.06 mm as total amount of sinking after 7∼8 times, and FDI abutment showed 0.75±0.06 mm as total amount of sinking after 10∼13 times. Conclusions: In conclusion, the implant which is conical abutment without screws showed generally favorable fitness to masticatory force. However, as the loading condition being added, we could notice that the amount of sinking of fixture-abutment connection part has a increasing tendency. Therefore, It is thought that the dentists using this system need to do the follow-up check if there is something wrong with occlusion periodically, and the manufacturer should complement this aspect. (JOURNAL OF DENTAL IMPLANT RESEARCH 2015;34(3):67-75)

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