齒顎矯正數位化分析與測量之研究

由於我國在實務上仍缺少較適用於台灣人的齒顎影像處理系統，所以大部分牙科醫師在側顱分析上，仍是以眼睛或手工描繪側顱X光片分析為主，這方式會面臨到保存性、追蹤性、方便性、準確性等的問題。本研究先訪談齒顎矯正醫師並依據牙科專業教材，篩選出國內醫療界所最常使用的齒顎矯正分析項目，然後依此建立數位化側顱分析與測量系統，在病患照完側顱X光片後，在醫師點選完數位X光片上的界標點，該系統會立即算出齒顎矯正上各項分析測量所需的數據；本研究事先蒐集各個年龄層的國人的各項側顱測量數據的平均值和標準差，系統會將病患的側顱測量數據和正常國人的數據相比較，協助醫師做出正確診斷。除此，系統亦能將界標點連結，數位化描繪病患側顱的輪廓線，醫師可透過齒顎矯正各階段的側顱輪廓線的疊影，看出病患在治療前後臉部的變化，藉此知道治療方案的成效。為確保研究的可信性與可用性，本研究對系統施行系統滿意度評估及專家驗證。評估的結果，專家們認為在齒顎測量項目與診斷決策支援上，符合臨床決策的需求，以及數位化齒顎測量的準確度比手工測量還精準。在系統滿意度上，約七成使用者滿意系統功能及內容完整性、操作方便性等，在流程上亦符合臨床經驗。

關鍵字

齒顎矯正；牙科資訊系統；側顱X光；側顱測量；咬合狀況

並列摘要

Since of the lack of appropriate images process system, most dentists perform cephalometric analyses of a patient by perceiving or measuring the lateral X-ray photos manually. Such a way will face the problems of preservation, traceability, convenience, and precision. This research first interviews the dentists and investigates the dental textbook, finding the most common used cephalometric analyses domestically and then building the cephalometric system. After getting the lateral X-ray photos of a patient, the dentists can spot the landmarks on the photos. Our system can calculate all the needed measures for cephalometric analyses immediately. This research also collected the average as well as the deviation of the measures of cephalometric analyses from the public in each range of ages whose occlusions are determined as normal. Our system will compare the measures of a patient to the measures of the normal public to help the dentists in diagnoses. In addition, the system can draw the contour line of the lateral side of face by tracing the landmarks on the lateral X-ray photo. Through the overlapping the contour lines in two different phases of treatment, the dentists can watch the change of the face of a patient before and after the phase of treatment and acquire the effectiveness of the treatment. To confirm the reliability and usability of the system, the research also performs the questionnaire to assess the system satisfaction and to verify the professional degree. The results show that the dental experts agree that the system meets the clinical requirement in cephalometric analyses and diagnoses decision support and the cephalometric analyses by the system are more precise than that by hands. As for the system satisfaction, about 70% of users satisfy the provided system functions, such as the completeness and convenience of the system, and admit the use of the system matching the clinical usage.

並列關鍵字

orthodontics ； dental information system ； lateral X-ray ； cephalometric analyses ； occlusion

國際替代計量

齒顎矯正數位化分析與測量之研究

全文下載

主題瀏覽