선택한 단어 수는 입니다.
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최대 10 단어까지만 선택 가능합니다.
문제 정의
- Therefore, the purpose of this retrospective study was to compare the long-term survival rate and MBL related to multiple risk factors including the clinician’ s experience.
제안 방법
- This study was approved by Institutional Review Boards at the Gangneung-Wonju National University Dental Hospital (IRB 2014-7). All patients included in the retrospective review were treated with the 2-staged surgical procedure. During the period, 2890 implants in 1154 patients were installed.
- To discriminate potential risk factors associated with implant survival, binary logistic regression analysis was performed. First, simple logistic regression analysis was performed between the 5-year survival rate of the implants and each independent variable of interest separately. The independent variables that associated significantly with implant survival of 5-years in simple logistic regression analysis (P < 0.
- Our study was designed to compare the long-term survival rate and MBL related to multiple risk factors including the clinician’s experience.
- This method resulted in an accurate visualization of the implant threads. Peri-implant bone loss was assessed by measuring the linear bone change from the abutment-fixture junction to the first bone-to-implant contact at the mesial and distal site of each implant. This measurement was performed using PC-based digital software (Infinitt Pacs, Infinitt healthcare, Seoul, Korea), which allows magnification and precise assessment at 0.
대상 데이터
- Of these patients, 328 patients, who were treated with 852 implants, were followed. Four hundred eighty nine implants installed by residents in the Department of Periodontics in 196 patients were recruited. Sixty-nine implants in 50 patients were excluded because of insufficient follow-up data or the lack of digital periapical radiographs of at least 5 years.
- In this retrospective study, all implants were placed by periodontology residents at the Department of Periodontics of the Gangneung-Wonju National University Dental Hospital from January 2002 to March 2009. This study was approved by Institutional Review Boards at the Gangneung-Wonju National University Dental Hospital (IRB 2014-7).
- During the period, 2890 implants in 1154 patients were installed. Of these patients, 328 patients, who were treated with 852 implants, were followed. Four hundred eighty nine implants installed by residents in the Department of Periodontics in 196 patients were recruited.
- Sixty-nine implants in 50 patients were excluded because of insufficient follow-up data or the lack of digital periapical radiographs of at least 5 years. Thus, 420 implants in 146 patients were included in this study (Fig. 1). The prosthetic rehabilitation was completed at the Department of Prosthodontics of the Gangneung-Wonju National University Dental Hospital.
- Only the patients involved in follow-up appointments every 3 to 6 months for at least 5 years were included. Thus, 420 implants in 146 patients were included in this study.
데이터처리
- In order to evaluate the risk factors contributing to MBL, univariate linear regression and stepwise multiple regression analysis was performed. MBL was higher in smokers (mean, 2.
- 001) were significantly associated with the 5-year survival of implants. The independent variables were included in multiple regression analysis.
- The surface type of implant was related statistically to MBL by stepwise multiple linear regression analysis (P = 0.03). MBL with an anodized surface (mean, 1.
- Multivariate odds ratios, confidence intervals, and P values resulting from multiple logistic regression analysis were described. To identify the potential risk factors needed to predict MBL, stepwise multiple regression analysis was performed. The same independent variables as those in the analysis of implant survival were included.
이론/모형
- All implants included in this study were placed using the 2-staged surgical procedure. After installation of the implant fixture, spontaneous CS exposure was observed in 68 implants (16.
- The cumulative survival rates of implants of 5 years loading (CSR5s) were calculated by the life table method at annual intervals and Kaplan-Meier analysis. Implant outcomes can be divided into two types: implant survival and radiographic marginal bone levels.
성능/효과
- Based on simple logistic regression analysis, patient gender (P = 0.023), smoking status (P = 0.002), location of implant (P = 0.028), presence of spontaneous CS exposure (P < 0.001), and application of bone augmentation procedures (P = 0.001) were significantly associated with the 5-year survival of implants.
- In this study, one of the variables that associated statistically with 5-year implant survival (P < 0.05) was smoking status (P = 0.033).
후속연구
- Therefore, from these limitations, the significant risk factors for implant survival and MBL identified in this study should be interpreted with caution, and con trolled prospective studies are required in the future.
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