单侧完全性唇腭裂患者磁力扩弓后牙弓宽度的稳定性研究  

Stability of dental arch width in the patients with complete unilateral cleft lip and palate after the magnetic palatal expansion

作　　者：马巧玲[1] 杜娟 胡芳[3] 李贵凤[1] 曹灵[4] MA Qiaoling;DU Juan;HU Fang;LI Guifeng;CAO Ling(Department of Orthodontics,The Affiliated Stomatological Hospital,Medical School of Nanjing University,Nanjing 210008,China;Jiangsu College of Nursing,Huai'an 223001,China;The Second Outpatient Department,The Affiliated Stomatological Hospital of Nanjing Medical University,Nanjing 210029,China;Department of Oral and Maxillofacial Surgery,The Affiliated Stomatological Hospital of Nanjing Medical University,Jiangsu Province Key Laboratory of Oral Diseases,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine,Nanjing 210029,China)

机构地区：[1]南京大学医学院附属口腔医院正畸科,江苏南京210008 [2]江苏护理职业学院,江苏淮安223001 [3]南京医科大学附属口腔医院第二门诊部,江苏南京210029 [4]南京医科大学附属口腔医院口腔颌面外科,江苏省口腔疾病研究重点实验室,江苏省口腔转化医学工程研究中心,江苏南京210029

出　　处：《口腔生物医学》2022年第4期241-245,共5页Oral Biomedicine

基　　金：南京市医学科技发展项目(YKK17143)。

摘　　要：目的:研究磁力扩弓正畸治疗唇腭裂患者错牙合畸形的临床疗效和稳定性。方法:选择32例恒牙晚期单侧完全性唇腭裂患者,进行磁力扩弓和固定矫治。制取患者治疗前、后和保持2年后的数字化模型,拍摄治疗前、后及保持2年后锥形束CT。对上颌各段牙弓宽度、基骨弓宽度和牙根长度进行测量。结果:磁力扩弓后,上颌各段牙弓宽度以及上颌基骨宽度均有显著增加(P<0.05),其中第一磨牙间的牙弓宽度增加最显著(P<0.01);保持2年后牙弓宽度无明显变化(P>0.05)。扩弓后上颌第一前磨牙的颊根长度变化具有统计学意义(P<0.05)。结论:磁力扩弓和固定矫治相结合,可以较好地扩大唇腭裂患者的上颌牙弓宽度,获得尖窝交错咬合关系和长期稳定性。Objective:To investigate clinical efficacy and transverse stability of patients with cleft lip and palate after magnetic pal⁃atal expansion and fixed appliance.Methods:The samples consisted of 32 individuals with complete unilateral cleft lip and palate in the late permanent dentition who underwent magnetic palatal expansion and fixed appliance.Maxillary arch widths and cone⁃beam com⁃puted tomography(CBCT)images were taken at pretreatment,posttreatment and two year of retention.The width of the arch,the width of the basal bone arch and the length of the root of the maxilla are measured.Results:Maxillary arch widths increased significantly in arches(P<0.05),especially in the first molar arch area(P<0.01).Arch widths decreased after two year of retention and were not sta⁃tistically significant(P>0.05).After orthodontic treatment the lengths of tooth roots were reduced,but only after magnetic palatal ex⁃pansion the change in mesial buccal roots of the first premolar was statistical significant(P<0.05).Conclusions:Magnetic palatal ex⁃pansion and fixed appliance can correct the transverse discrepancies,offering satisfactory occlusion relation and stability in patients with complete unilateral cleft lip and palate.

关 键 词：唇腭裂 磁力扩弓 牙弓宽度 

分 类 号：R783.5[医药卫生—口腔医学]