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題名 | 下顎枝刃狀種植體的放射攝影回溯性評估=A Radiographic Retrospective Study of Ramus Blade Implants |
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作者 | 張肇慶; 李民偉; 呂炫堃; | 書刊名 | 中華牙醫學雜誌 |
卷期 | 16:1 1997.03[民86.03] |
頁次 | 頁19-27 |
分類號 | 416.98 |
關鍵詞 | 下顎上升枝; 刃狀植體; 下顎枝刃狀種植體; Ascending ramus; Blade implant; Ramus blade implant; |
語文 | 中文(Chinese) |
中文摘要 | 本研究的目的是將美國羅馬林達大學牙醫學院國際牙醫部門(Loma Linda University, School of Dentistry, International Dentist Program)於1985年到1991年植入於54位患者的65支純鈦下顎枝刃狀種植體(ramus blade implant)的牙根尖放射線攝影片來做長期的植體術後評估。一系列由手術植入後到最近一次回診間隔6至12個月所取得的植體牙根尖X光片,經由比較分析,利用Fisher exact test (significance level α=0.05)分別評各種情況與持續性骨吸收(progressive bone loss,簡稱P.B.L.)的發生及植體的失敗是否有所關連。結果顯示,在植體周圍出現放射線透射區與否,對於植體存活有明顯的差異性(P<0.0187)。然而產生P.B.L.並不會影響到植體的存活(P > 0.3505)。開始作用受力的時間(loading time)短於6週產生P.B.L.的機率較大(P < 0.0260),但對植體的存活則沒有明顯的差異性(P > 0.0670)。本研究顯示純鈦下顎枝刃狀種植體五年統計,存活率為95.4%。 |
英文摘要 | The purpose of this retrospective study was to provide an analysis of 65 titanium ramus blade implants which were implanted between 1985 and 1991, in 54 kpatients at the International Dentist Program Clinic at Loma Linda University School of Dentistry. All patients underwent periodic recall examinations. The chart records and the follow-up radiographs were evaluated for the analysis. The results of this study indicated that the appearance of radiolucency around the post of an implant was a significant indicator of the survival of a ramus blade implant (p < 0.0187). Progressive bone loss around the post of an implant did not affect the survival of the implant (p > 0.3505). There was no significant relationship between the loading time and the survival of a ramus blade implant (p > 0.0670). However, there was a significant chance of developing progressive bone loss around the post of the implant if it was loaded prior to six weeks following implant placement (p < 0.0260). The survival rate of the ramus blade implants in this study was 95.4 %. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。