지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한치과보철학회 The Journal of Advanced of Prosthodontics The Journal of Advanced of Prosthodontics 제6권 제5호
- 발행연도
- 2014.1
- 수록면
- 361 - 371 (11page)
이용수
초록· 키워드
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PURPOSE. In case of large horizontal discrepancy of alveolar ridge due to severe resorption, cantilevered crown is usually an unavoidable treatment modality. The purpose of this study was to evaluate the clinical criteria for the placement of the aforementioned implant crown. MATERIALS AND METHODS. The mandible model with 2 mm thick cortical bone and cancellous bone was fabricated from CT cross-section image. An external connection type implant was installed and cantilevered crowns with increasing offset of 3, 4, 5, 6, and 7 mm were connected. Vertical load and 30° oblique load of 300 N was applied and stress around bone and implant component was analyzed. A total of 14 cases were modeled and finite element analysis was performed using COSMOS Works (Solid works Inc, USA). RESULTS. As for the location of the vertical load, the maximum stress generated on the lingual side of the implant became larger according to the increase of offset distance. When the oblique load was applied at 30°, the maximum stress was generated on the buccal side and its magnitude gradually decreased as the distance of the offset load increased to 5 mm. After that point, the magnitude of implant component’s stress increased gradually. CONCLUSION. The results of this study suggest that for the patient with atrophied alveolar ridge following the loss of molar teeth, von-Mises stress on implant components was the lowest under the 30° oblique load at the 5 mm offset point. Further studies for the various crown height and numbers of occusal points are needed to generalize the conclusion of present study.
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참고문헌 (23)
참고문헌 신청
Adell R. / 1981 / A 15-year study of osseointegrated implants in the treatment of the edentulous jaw / Int J Oral Surg 10 : 387 ~ 416
Adell R. / 1990 / Long-term follow-up study of osseointegrated implants in the treatment of totally edentulous jaws / Int J Oral Maxillofac Implants 5 : 347 ~ 359
Atwood DA. / 1971 / Clinical, cephalometric, and densitometric study of reduction of residual ridges / J Prosthet Dent 26 : 280 ~ 295
Baik SH / 2008 / Heo SJ. A three dimensional finite element analysis of stress distributions in implant-retained mandibular dentures with various retainers / 박사 / Seoul National Uni
Benzing UR. / 1995 / Biomechanical aspects of two different implant-prosthetic concepts for edentulous maxillae / Int J Oral Maxillofac Implants 10 : 188 ~ 198
Adell R. / 1990 / Long-term follow-up study of osseointegrated implants in the treatment of totally edentulous jaws / Int J Oral Maxillofac Implants 5 : 347 ~ 359
Atwood DA. / 1971 / Clinical, cephalometric, and densitometric study of reduction of residual ridges / J Prosthet Dent 26 : 280 ~ 295
Baik SH / 2008 / Heo SJ. A three dimensional finite element analysis of stress distributions in implant-retained mandibular dentures with various retainers / 박사 / Seoul National Uni
Benzing UR. / 1995 / Biomechanical aspects of two different implant-prosthetic concepts for edentulous maxillae / Int J Oral Maxillofac Implants 10 : 188 ~ 198
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