Measure the Porcine Jaw Bones on Coronal-Apical-Direction to Access Initial Tooth Implant Stability

以植牙方向量測豬齒槽骨評估植牙之初期穩定度

張智信(Chin-Hsin Chang) ； 何應勤(Inn-Chyn Her) ； 張儷卿(Li-Ching Chang) ； 湯譯增(I-Tseng Tang)

《中國機械工程學刊》 35卷6期 (2014/12) Pp. 485-491

摘要

植牙雖然已經發展數十年，但是目前尚欠缺一套有效的非離子化的事前評估齒槽骨的方法，本論文利用豬顎骨作一模擬，利用超音波的波速特質提供一種量測方式以植牙方向(coronal-apical)量測而非一般buccal-lingual方向，此法可使量測結果更貼近實際情形，實驗結果發現我們可量測出軟組織厚度誤差為4.03%並可消除其影響，並可量測緻密骨厚度誤差3.45%。

並列摘要

Tooth implants have been developed for a long-term, a valid non-ionized technique for access jaw bone before implant surgery is still lacking. In this research a fresh porcine jaw bones have been used to simulate jaw bone and uses the speed of the ultrasound for quantitative measurement. The conventional buccal-lingual direction is different our measure direction that is the superior-inferior direction, for the latter near the real implant direction. By eliminating the influence of soft tissue yielded a more accurate jawbone measurement. We measured the thickness of the cortical bone, with an average percentage error of 2.94 %. From the experimental results, we also could measure the thickness of the soft tissue, with an average percentage error of only 4.02%. Our results indicated that the proposed method provides an accurate evaluation of initial implant stability before an operation.

並列關鍵字

implant ； ultrasound transmission velocity ； jaw bone