摘要
正畸治疗牙齿移动过程中,传统观点认为牙槽骨会跟随牙齿以1:1的比例改建,张力侧骨新生、压力侧骨吸收以维持牙槽骨的平衡。但是近年研究显示,一些正畸治疗后的患者出现了骨丧失,说明牙槽骨并不是即刻跟随牙齿发生等比例改建。前牙大范围移动后周围牙槽骨形态的变化一直是临床医生关注的焦点,本文通过回顾既往文献,就正畸患者拔牙矫治后前牙区牙槽骨变化的相关内容进行综述。综述结果表明,前牙大范围移动后,前牙牙根舌/腭侧根颈部位点处的牙槽骨较易出现骨缺损。随着影像学技术的发展,不同于以往采用二维影像对牙槽骨进行研究,现多使用锥形束CT进行测量分析,其结果更加精确,但目前基于锥形束CT的前牙区牙槽骨形态变化的多因素研究较少。基于三维影像对不同年龄段患者前牙区牙槽骨长期变化的对比研究,以及不同骨面型、牙齿移动方式等与牙槽骨改建的相关性研究是未来研究的重点。
It has been traditionally believed that a 1:1 cortical bone remodeling/tooth movement ratio has been preserved during orthodontic treatment for tooth movement,with the alveolar bone on the tension side growing and the alveolar bone on the pressure side resorbing to maintain the balance of the alveolar bone.However,recent studies have shown that alveolar bone loss has been found in patients who have undergone orthodontic treatment,suggesting that the alveolar bone does not change as the teeth change over time.Whether the morphology of the alveolar bone will change when the anterior teeth are moved has been the clinical focus.The changes of anterior alveolar bone in patients who have undergone tooth extraction after orthodontic treatment were summerized by literature review in this paper.The results of the review showed that the alveolar bone at the lingual/palatal root-cervical site of the anterior root is more prone to bone loss after extensive movement of the anterior teeth.With the development of imaging technology,CBCT is now more commonly used for analysis instead of two-dimensional images for measurement,as its results are more accurate.However,there are few multifactorial studies in which CBCT has been used to assess the morphological changes in the alveolar bone.The focus of future research is to compare the long-term changes in the anterior alveolar bone of patients of different ages based on three-dimensional imaging,and to study the correlation between different skeletal features,tooth movement patterns and alveolar bone remodeling.
作者
谢飘
唐镇
刘剑
XIE Piao;TANG Zhen;LIU Jian(The Key Laboratory of Oral Biomedicine&Department of Orthodontics,Affiliated Stoma-tological Hospital of Nanchang University,Nanchang 330006,China)
出处
《口腔疾病防治》
2023年第6期452-456,共5页
Journal of Prevention and Treatment for Stomatological Diseases
基金
江西省自然科学基金项目(20202BABL206068)
江西省卫生健康委科技计划项目(SKJP220204161)。
关键词
拔牙矫治
前牙内收
牙槽骨改建
牙槽骨高度
牙槽骨厚度
骨新生
骨吸收
头颅侧位片
锥形束CT
extraction treatment
retraction of anterior teeth
alveolar bone remodeling
alveolar bone height
alveolar bone thickness
new bone formation
bone resorption
lateral cephalometric
CBCT
