改良唇挡扩弓后牙齿及牙槽骨变化的CBCT研究  

Study on cone beam computed tomography of tooth and alveolar bone changes after unilateral expansion treatment with modified lip bumper

作　　者：王云军 王云娥 赵世俊 回纪芳 纪坤 

机构地区：[1]沧州市人民医院口腔科,河北沧州061000 [2]盐山县医院,河北沧州061000 [3]西安交通大学口腔医院,陕西西安710004

出　　处：《临床口腔医学杂志》2016年第11期673-675,共3页Journal of Clinical Stomatology

摘　　要：目的:研究改良唇挡单侧扩弓后牙齿及牙槽骨的变化。方法:20例单侧完全性唇腭裂患者应用改良唇挡进行单侧扩弓,扩弓前后分别进行CBCT扫描重建,测量裂隙侧牙齿及牙槽骨的变化并进行统计学分析。结果:1未经扩弓治疗的单侧完全性唇腭裂隙患者裂侧尖牙和前磨牙相对于健侧均表现为舌倾,其中尖牙舌倾最明显;2牙及牙槽骨均发生颊倾;颊侧牙槽骨倾斜度大于腭侧,变化量与牙齿的颊倾程度呈正相关性;3根尖基骨宽度增加。结论:唇挡扩弓后牙槽骨随牙齿的颊倾发生适应性改建,同时唇挡刺激牵引牙根尖基骨的改建,在适应症范围内唇挡扩弓是安全有效的。Objective： To evaluate the changes of tooth and alveolar alteration after expansion with modified lip bumper. Methods： 20 patients aged from 12 ro 15 years of unilateral complete cleft lip and palate were treated with modified lip bumper. And the effect was evaluated with CBCT measuring analysis before and after treatment. Results： 1Canines and premolars in cleft side were relative to the contralateral lingual inclination before the treatment of expansion,and especially the canines did. 2 Inclinations of both the buccal and the palatal bone were positively correlated with the tooth. 3The width of the root tip was significantly increased. Conclusion： Buccal alveolar bone with teeth occurred adaptive reconstruction after the treatment. And the root tip base bone reconstruction. So the expansion with modified lip bumper is safe and effective.

关 键 词：改良唇挡 CBCT 单侧扩弓 牙槽骨 

分 类 号：R782.2[医药卫生—口腔医学] R816.98[医药卫生—临床医学]