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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한치과보철학회 The Journal of Advanced of Prosthodontics The Journal of Advanced of Prosthodontics 제8권 제5호
- 발행연도
- 2016.1
- 수록면
- 363 - 371 (9page)
이용수
초록· 키워드
오류제보하기
PURPOSE. On maxillofacial tumor patients, oral implant placement prior to postoperative radiotherapy can shorten the period of prosthetic reconstruction. There is still lack of research on effects of post-implant radiotherapy such as healing process or loading time, which is important for prosthodontic treatment planning. Therefore, this study evaluated the effects of post-implant local irradiation on the osseointegration of implants during different healing stages.
MATERIALS AND METHODS. Custom-made implants were placed bilaterally on maxillary posterior edentulous area 4 weeks after extraction of the maxillary first molars in Forty-eight Sprague-Dawley rats. Experimental group (exp.) received radiation after implant surgery and the other group (control) didn’t. Each group was divided into three sub-groups according to the healing time (2, 4, and 8 week) from implant placement. The exp. group 1, 2 received 15-Gy radiation 1 day after implant placement (immediate irradiation). The exp. group 3 received 15-Gy radiation 4 weeks after implant placement (delayed irradiation).
RESULTS. The bone mineral density (BMD) was significantly lower in the immediate irradiation groups. BMD was similar in the delayed irradiation group and the control group. The irradiated groups exhibited a lower bone-toimplant contact ratio, although the difference was not statistically significant. The irradiated groups also exhibited a significantly lower bone volume and higher empty lacuna count than the control groups. No implant failure due to local irradiation was found in this study.
CONCLUSION. Within the limits of this study, the timing of local irradiation critically influences the bone healing mechanism, which is related to loading time of prostheses.
목차
등록된 정보가 없습니다.
참고문헌 (38)
참고문헌 신청
Schepers RH / 2006 / Effect of postoperative radiotherapy on the functional result of implants placed during ablative surgery for oral cancer / Int J Oral Maxillofac Surg 35:803~808
Dreizen S / 1977 / Oral complications of cancer radiotherapy / Postgrad Med 61:85~92
Granström G / 1997 / Effects of irradiation on osseointegration before and after implant placement: a report of three cases / Int J Oral Maxillofac Implants 12:547~551
Sclaroff A / 1994 / Immediate mandibular reconstruction and placement of dental implants. At the time of ablative surgery / Oral Surg Oral Med Oral Pathol 78:711~717
Schoen PJ / 2004 / The use of implant retained mandibular prostheses in the oral rehabilitation of head and neck cancer patients. A review and rationale for treatment planning / Oral Oncol 40:862~871
Dreizen S / 1977 / Oral complications of cancer radiotherapy / Postgrad Med 61:85~92
Granström G / 1997 / Effects of irradiation on osseointegration before and after implant placement: a report of three cases / Int J Oral Maxillofac Implants 12:547~551
Sclaroff A / 1994 / Immediate mandibular reconstruction and placement of dental implants. At the time of ablative surgery / Oral Surg Oral Med Oral Pathol 78:711~717
Schoen PJ / 2004 / The use of implant retained mandibular prostheses in the oral rehabilitation of head and neck cancer patients. A review and rationale for treatment planning / Oral Oncol 40:862~871
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