前牙深覆盖伴单颗下中切牙先天缺失患者不同拔牙模式疗效的研究  

Study on Extraction Models for Anterior Deep Overjet Patients with Congenital Hypodontia of A Mandibular Central Incisor

作　　者：张玺[1] 王翔[2] 王林[1] 谷妍[1] 吴可 赵春洋[1] ZHANG Xi;WANG Xiang;WANG Lin;GU Yan;WU Ke;ZHAO Chun-Yang(Jiangsu Key Laboratory of Oral Diseases,Department of Orthodontics,Affiliated Stomatological Hospital of Nanjing Medical University,Nanjing 210029,China;Department of Stomatology,The First People's Hospital of Nantong,Nantong 226001,China)

机构地区：[1]南京医科大学口腔医学研究所,南京医科大学附属口腔医院正畸科,江苏南京210029 [2]南通市第一人民医院口腔科,江苏南通226001

出　　处：《口腔医学研究》2018年第9期956-959,共4页Journal of Oral Science Research

基　　金：国家自然科学基金(编号:81571005、81230022);江苏省高校优势学科建设工程(编号:2014-37);临床医学科技专项-重点病种的规范化诊疗研究(编号:BL2014073);科教强卫口腔正畸学zdxka(编号:2016026)

摘　　要：目的:使用PAR(Peer Assement Rating)指数研究前牙深覆盖伴单颗下中切牙先天缺失患者采用不同拔牙模式的正畸治疗的疗效。方法:回顾性研究前牙深覆盖伴单颗下中切牙先天缺失病例36例,分成A、B两组,A组18例,拔除2颗上颌第一前磨牙矫治,B组18例,拔除上颌2颗第一前磨牙和下颌一颗前磨牙矫治。测量分析A、B两组治疗前后的PAR指数和头影测量值。结果:两组病例治疗前后PAR指数的各项指标均有所改善(P<0.01),B组治疗后后牙牙合关系(P<0.05)及中线(P<0.01)改善更显著。结论:前牙深覆盖伴单颗下中切牙先天缺失的患者,采用拔除上颌两颗第一前磨牙及下颌一颗前磨牙矫治的咬合关系更好。Objective:To investigate the orthodontic treatment outcome of anterior deep overjet patients with congenital hypodontia of a mandibular central incisor using PAR index.Methods:This retrospective study included thirty-six deep overjet patients with congenital hypodontia of a mandibular central incisor.Eighteen patients who extracted maxillary first premolars were in group A.Other eighteen patients who extracted maxillary first premolars and a mandibular premolar were in group B.Group A and B were measured and analyzed according to the PAR indexs and cephalometrics before and after orthodontic treatment.Results:The difference in the weighted PAR scores and each of the PAR scores were statistically significant(P<0.01).There were significant changes in posterior occlusal relationship(P<0.05)and midline(P<0.01)in group B.Conclusion:Extraction of two maxillary premolars and one mandibular premolar could achieve more satisfactory occlusal relationship to anterior deep overjet patients with congenital hypodontia of a mandibular central incisor.

关 键 词：前牙深覆盖 下中切牙先天缺失 拔牙模式 PAR指数 头影测量 

分 类 号：R783.5[医药卫生—口腔医学]