矯正治療與牙根吸收之關係－－文獻回顧

Relationship between Orthodontic Treatment and Root Resorption – A Literature Review

矯正治療中或完成後，患者的牙根出現變短或是吸收的現象，稱為矯正牙根外吸收；嚴重時影響治療結果，造成矯正治療的不穩定，甚至引發醫療糾紛。本文獻回顧整理牙根外吸收之可能的全身系統性原因與局部因素，並探討生物光子（發光二極體）刺激牙根與骨頭並抑制牙根吸收所扮演之角色。本篇就收集的文獻研究報告，闡述相關的結果，提供矯正醫師於治療中之參考。

Shorting of tooth or external root resorption that happen during or after completion of orthodontic treatment are troublesome. The root resorption could affect treatment outcome, unstable orthodontic tooth movement and even cause medical dispute. The etiologies of external root resorption could be systemic problems or local factors. The mechanism of external root resorption is still unclear and under investigation. This article reviewed the factors and possible causes on the orthodontic root resorption and discussed the possible role of light emitted diode (LED) biophotostimualtion effects to inhibit the root resorption. The information was provided for orthodontists in daily practice.