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
- 2010.1
- 수록면
- 417 - 422 (6page)
이용수
초록· 키워드
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Introduction: Bone density is one of the important factors for the long term success of endosseous implants. The bone density varies from site to site and from patient to patient. A preoperative evaluation of the bone density is quite useful to oral surgeons for planning dental implantation. More accurate information on the bone density will help surgeons identify suitable implant sites, thereby increase the success rate of dental implantation.
This study examined the correlation between the bone density measured preoperatively by computed tomography (CT) and the implant primary stability measured by resonance frequency analysis. Furthermore, the effects of the implant sites, gender, age and generalized systemic disorder patients on the bone density and primary implant stability were examined.
Materials and Methods: One hundred and fourteen patients were selected. None of the patients had undergone a tooth extraction or bone graft history in the previous year. Preoperatively, the patients underwent CT scanning to evaluate the Hounsfield unit (HU), and resonance frequency analysis (RFA) was used to evaluate the implant primary stability at the time of implant installation. All implants were 4.0 mm diameter and 11.5 mm length US II. All patients were recorded and the HU and implant stability quotient (ISQ) value were evaluated according to the sites, gender and age.
Results: The highest HU values were found in the mandibular anterior site (827.6±151.4), followed by the mandibular molar site (797±135.1),mandibular premolar site (753.8±171.2), maxillary anterior site (726.3±154.4), maxillary premolar site (656.7±173.8) and maxillary molar site (621.5±164.9). The ISQ value was the highest in the mandibular premolar site (81.5±2.4) followed by the mandibular molar site (80.0±5.7), maxillary anterior site (77.4±4.1), mandibular anterior site (76.4±11.9), maxillary premolar site (74.2±14.3) and maxillary molar site (73.7±7.4).
The mean HU and ISQ value were similar in females and males. (HU: P=0.331, ISQ: P=0.595) No significant difference was also found in the age group respectively. However, the correlation coefficients between the variables showed a closed correlation between the HU and ISQ value.
Conclusion: These results showed close correlation between the bone density (HU) and primary stability value (ISQ) at the time of implant installation (Correlation coefficients=0.497, P<0.01).
These results strengthen the hypothesis that it might be possible to predict and quantify the initial implant stability and bone density from a presurgical CT diagnosis.
목차
등록된 정보가 없습니다.
참고문헌 (19)
참고문헌 신청
Bassi F / 1999 / Bone density in human dentate and edentulous mandible using computed tomography / Clin Oral Implants Res 10 : 356 ~ 361
Fanfani F / 1996 / La tomografia assilae computerizzata del distetto maxillo-facciale, 3D-Dentascan e derivati / UTET Perioici
Fanuscu MI / 2004 / Three-dimensional morphometric analysis of human cadaver bone: microstructural data from maxilla and mandible / Clin Oral Implants Res 15 : 213 ~ 218
Hounsfield GN / 1995 / Computerized transverse axial scanning (tomography): Part I. Description of system 1973 / Br J Radiol 68 : 166 ~ 172
Lee S / 2007 / Bone density assessments of dental implant sites: 3. Bone quality evaluation during osteotomy and implant placement / Int J Oral Maxillofac Implants 22 : 208
Fanfani F / 1996 / La tomografia assilae computerizzata del distetto maxillo-facciale, 3D-Dentascan e derivati / UTET Perioici
Fanuscu MI / 2004 / Three-dimensional morphometric analysis of human cadaver bone: microstructural data from maxilla and mandible / Clin Oral Implants Res 15 : 213 ~ 218
Hounsfield GN / 1995 / Computerized transverse axial scanning (tomography): Part I. Description of system 1973 / Br J Radiol 68 : 166 ~ 172
Lee S / 2007 / Bone density assessments of dental implant sites: 3. Bone quality evaluation during osteotomy and implant placement / Int J Oral Maxillofac Implants 22 : 208
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