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    Please use this identifier to cite or link to this item: http://ccur.lib.ccu.edu.tw/handle/A095B0000Q/158


    Title: 應用於矯正和數位牙科之自動化快速排牙;Rapid Automatic Tooth Arrangement Applied to Orthodontic and Digital Dentistry
    Authors: 蔡博丞;TSAI, BO-CHENG
    Contributors: 機械工程系研究所
    Keywords: 快速排牙;自動排牙;齒顎矯正;Rapid tooth arrangement;Automatic tooth arrangement;Orthodontics
    Date: 2018
    Issue Date: 2019-05-23 12:52:45 (UTC+8)
    Publisher: 機械工程系研究所
    Abstract: 齒列矯正最希望的是在最短時間內,以最簡單方式排列齒列,達到美觀與正確咬合。因此,本論文根據矯正專科醫生排牙經驗與齒列矯正學知識開發出自動化快速排牙演算法,同時考慮牙根資訊,避免牙根突出齒槽骨。 透過自動化牙齒特徵搜尋與預先定義之牙弓、牙齒角度獲取個人參數,利用非線性最小數值解(Levenberg–Marquardt algorithm,LMA),將牙齒特徵點與牙弓作對應,將牙齒排列在牙弓上初步排列。接著透過上下顎咬合特徵對應關係,建立正確咬合,同時進行與對咬牙、鄰牙間的碰撞偵測,持續迭代直到所有牙齒完成排列條件,快速排列齒列以符合齒列矯正治療目的。 最後經過微調確認,排列操作過程約十分鐘,與手動數位排牙方式相比,大幅縮短規劃時間,且自動排列結果與手動規劃結果相似。
    Orthodontic treatment hope to use a simplest way reach a correct occlusion and aesthetic goal in a short time. Therefore, this thesis develops a rapid automated tooth arrangement algorithm based on the orthodontists’ experience and the knowledge of orthodontics, consider the information of tooth root to prevent them from protruding out of alveolar bone.To start with, getting the personal tooth information through the automatic search of dental feature, dental arch identification and tooth inclined angle. Then, correspond the dental feature to the dental arch and align tooth to dental arch using the Levenberg–Marquardt algorithm. Next, establish correct occlusion through the maxillary and mandibular bite characteristic of correspondence, check the collision detection with opposing and adjacent tooth ,and iterative until all the tooth are aligned in order to the goal of orthodontics.In the end, results will be checked by fine adjustment. The process takes about ten minutes, which significantly shortens the planning time compare with the manual digital tooth arrangement, and the automatic arrangement results are similar to the manual arrangement.
    Appears in Collections:[機械工程學系] 學位論文

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