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
- 발행연도
- 2012.6
- 수록면
- 13 - 20 (8page)
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초록· 키워드
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Purpose: The purpose of this study was to investigate the effect of patterning on the stress distribution in the bone tissue using the finite element analysis (FEA) model.
Materials and Methods: For optimal comparison, it was assumed that the implant was axisymmetric and infinitely long. The implant was assumed to be completely embedded in the infinitely long cortical bone and to have 100% bone apposition. The implant-bone interface had completely fixed boundary conditions and received an infinitely big axial load. von Mises stress and maximal principal stress were analyzed. Conventional thread and 2 or 3 patterns on the upper and lower flank of the thread were compared.
Result: The surface areas of patterned implants were increased up to 106~115%. The thread with patterns distributed stress better than conventional thread. Patterning in threads may produce more stress in the implant itself, but reduce stress in the surrounding bone. Stress patterns of von Mises stress were favorable with patterns, while the maximal principal stress was increased with patterns. Patterns in the lower flank showed favorable stress distribution.
Conclusion: The patterns in implant thread reduce the stress generated in surrounding bone, but the number and position of patterns were crucial factors in stress distribution.
Materials and Methods: For optimal comparison, it was assumed that the implant was axisymmetric and infinitely long. The implant was assumed to be completely embedded in the infinitely long cortical bone and to have 100% bone apposition. The implant-bone interface had completely fixed boundary conditions and received an infinitely big axial load. von Mises stress and maximal principal stress were analyzed. Conventional thread and 2 or 3 patterns on the upper and lower flank of the thread were compared.
Result: The surface areas of patterned implants were increased up to 106~115%. The thread with patterns distributed stress better than conventional thread. Patterning in threads may produce more stress in the implant itself, but reduce stress in the surrounding bone. Stress patterns of von Mises stress were favorable with patterns, while the maximal principal stress was increased with patterns. Patterns in the lower flank showed favorable stress distribution.
Conclusion: The patterns in implant thread reduce the stress generated in surrounding bone, but the number and position of patterns were crucial factors in stress distribution.
목차
Abstract
Introduction
Materials and Methods
Result
Discussion
Conclusion
References
참고문헌 (23)
참고문헌 신청
1. [학술지(정기간행물)] - Chehroudi B / 1989 / Effects of a grooved titaniumcoated implant surface on epithelial cell behavior in vitro and in vivo / J Biomed Mater Res 23 : 1067 ~ 1085
2. [학술지(정기간행물)] - Brunette DM / 1999 / The effects of the surface topography of micromachined titanium substrata on cell behavior in vitro and in vivo / J Biomech Eng 121 : 49 ~ 57
3. [학술지(정기간행물)] - Itälä AI / 2001 / Pore diameter of more than 100 microm is not requisite for bone ingrowth in rabbits / J Biomed Mater Res 58 : 679 ~ 683
4. [학술지(정기간행물)] - Hallgren C / 2001 / The importance of surface texture for bone integration of screw shaped implants: an in vivo study of implants patterned by photolithography / J Biomed Mater Res 57 : 485 ~ 496
5. [학술지(정기간행물)] - Hallgren C / 2003 / An in vivo study of bone response to implants topographically modified by laser micromachining / Biomaterials 24 : 701 ~ 710
2. [학술지(정기간행물)] - Brunette DM / 1999 / The effects of the surface topography of micromachined titanium substrata on cell behavior in vitro and in vivo / J Biomech Eng 121 : 49 ~ 57
3. [학술지(정기간행물)] - Itälä AI / 2001 / Pore diameter of more than 100 microm is not requisite for bone ingrowth in rabbits / J Biomed Mater Res 58 : 679 ~ 683
4. [학술지(정기간행물)] - Hallgren C / 2001 / The importance of surface texture for bone integration of screw shaped implants: an in vivo study of implants patterned by photolithography / J Biomed Mater Res 57 : 485 ~ 496
5. [학술지(정기간행물)] - Hallgren C / 2003 / An in vivo study of bone response to implants topographically modified by laser micromachining / Biomaterials 24 : 701 ~ 710
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UCI(KEPA) : I410-ECN-0101-2014-510-002345802