- 期刊
隱形與傳統矯正器之風險效益評估：病例報告（四）
The Comparison of Risk Factors of Invisalign and Traditional Fixed Appliances - A Case Report
摘要
病例報告為一位21歲女性，屬於安格氏第一類咬合不正，上、下顎嚴重擁擠，上顎有大於4.2毫米的空間不足，下顎有大於2毫米的空間不足，上、下犬齒皆被阻擋在頰側，尤其右下犬齒更嚴重地向近心頰側傾斜。治療計劃依照病患要求，以不拔牙方式處理，選擇Invisalign隱形矯正器，所需移動牙齒的空間，由鄰接面去釉修形、牙齒槽骨擴張術及牙齒傾角調控等方式獲得。治療由2009年8月27日開始，至2011年1月10日止，經過一年又四個半月的治療時間，上、下顎均已排列成臼、犬齒皆為安格氏第一類咬合，沒有擁擠、殘餘空間、旋轉、傾斜、邊緣差異、及過度的史皮式曲線等。最後，讓病患裝戴固位器（Vivera Retainer），追蹤九個月後咬合狀態穩定沒有復發，就讓病患維持每六個月定期口檢之常規。這是用Invisalign隱形矯正器治療一位罹患上、下顎嚴重擁擠，且病患沒有生長潛能之成功治療案例。
並列摘要
The case we report in this paper was a 21-years-old female patient. She presented with a Cl I malocclusion, upper and lower arch crowding, all canines were facially positioned and the lower right canine was further mesially inclined. Upper arch needed to do IPR with 4.2 mm and with 2 mm for lower arch. The actual spaces needed for alignment were higher than the estimated amounts of deficiency for IPR by computer calculation. The additional needs may be corrected by dentoalveolar expansion and controlled inclination of dentition without removing teeth. The malocclusion was corrected to Cl I occlusion without crowding, spacing, rotation, tipping, marginal ridge discrepancy, and excessive curve of Spee after one year and four months with Invisalign aligners. Vivera retainer were delivered after removing attachments and polished. Follow up visits were arranged after 9 months check-ups without relapse. It was a successful outcome for a non-growing patient with severe crowding treated by Invisalign aligners.