Study on Occlusal Contacts Relationship Between the Upperand Lower Dentition—Analyzing & Companing of the occlusal contacts by Ramitec and T-Scan.

• Main Authors: Bor-Wen Jiang, 江博文
• Other Authors: Jau-Min Hong
• Format: Others
• Language: zh-TW
• Published: 1993
• Online Access: http://ndltd.ncl.edu.tw/handle/67242986293338882050

碩士 === 高雄醫學院 === 牙醫學研究所 === 81 === @　 正中及偏心位咬合接觸之分析是口顎機能之診斷以及治療評療評價上 所不可或缺的。本研究的目的在觀察與分析傳統咬合記錄材料與 T-Scan 對咬合診查偵測之精確性並評估兩者間精確度之差異。本實驗選取36名受 測者，其口腔狀況為無咬頭覆蓋之填補或贗復物之永久自然齒列，咬合屬 於安格氏第一級分類且沒有做過矯正治療，且在臨床上無牙周病及顳顎關 節症的徵候。實驗前先指導受測者反覆練習正中咬合，側方咬合接觸及前 突咬合之接觸，待受測者熟悉這些動作之後，再將調好之聚乙醚診查材（ Ramitec）放入受測者的口中，逐次在上述三種咬合位上作咬合記錄，再 依T-Scan 手冊之使用方法，以T-Scan 的時間分析模式，將感應片置入受 測者口中，讓受測者在正中咬合嵌合位及偏心位記錄受測者咬合接觸情形 。 @　 研究之結果顯示，T-Scan在咬合點的記錄方面，其精確度仍較傳 統之咬合記錄材料差，如能在感應片之厚度，靈敏度及定位上有所改進， 此儀器仍不失為臨床上咬合分析之利器。 The methods were to select 36 subjects who had the permanent natural dentition without any dental restoration, Angle class I occlusion, and without any signs and symptoms of periodontal disease or TMJ disorder. @　 The subjects were instructed to practice the mandiblepositions in centric occlusion, lateral excursion and protusion. After the subjects were familiar with the positions , the mixed Ramitec was placed into each subject mouth and recording the occlusal cntacts in the centric and ecentric jaw positions. Another, the recording of centric and eccentric occlusion for all subjects by T-Scan, the methods were according to the instruction of time-analysis mode of T- Scan. The sensor was placed between the upper and lowere dentition of subject, the centric occlusion and eccentric occlsion of each subject were recorded. @　 In theis study, the occlusal detecting accuracy of T-Scan can be reached over 70% in centric occlussion and above 98% in eccentric occlusion compair with conventionanl recording materials. If the thickness and sensitivity could be slightly improved, T-San may be as an practial instrutment for occlusal examination and diagnosis.