新型压低下颌磨牙矫治器的临床应用  

Clinical application of new mandibular molar intruding appliance

作　　者：吴锋[1] 李俊芳[1] 王 倪振宇[2] 贺红[3] WU Feng;LI Junfang;WANG Zhen;NI Zhenyu;HE Hong(Department of Orthodontics, The Affiliated Huizhou Stomatological Hospital, Jinan University & Huizhou Stomatological Hospital, Huizhou 516001, China;Department of Orthodontics, School of Stomatology,Wenzhou Medical University, Wenzhou 325000, China;Department of Orthodontics, the 1st Division, School of Stomatology, Wuhan University, Wuhan 430079, China)

机构地区：[1]暨南大学医学院附属惠州口腔医院.惠州口腔医院正畸科,广东惠州516001 [2]温州医科大学附属口腔医院正畸科,浙江温州325027 [3]武汉大学口腔医院正畸一科,湖北武汉430079

出　　处：《口腔疾病防治》2017年第8期523-529,共7页Journal of Prevention and Treatment for Stomatological Diseases

基　　金：惠州市科技计划项目(2013Y114)

摘　　要：目的评估新型压低下颌磨牙矫治器压低下颌磨牙的疗效及应用价值。方法选择7例需要压低下颌磨牙治疗的前牙开患者,治疗前、后通过临床检查、牙颌模型分析及采用Winceph7.0数字化X线片分析软件测量头颅侧位片,评价临床压入效果,使用SPSS 17.0统计软件包对数据进行分析。结果 7例患者经过平均4个月的治疗,均取得比较明显的治疗效果。治疗前、后头影测量分析表明:下颌第一磨牙的平均压入量为(1.92±0.44)mm,矫治前、后相对于基准平面(MP平面)的垂直距离差异有统计学意义(P<0.05)。上颌第一磨牙平均压入量为(0.36±0.25)mm,矫治前、后相对于基准平面(PP平面)的垂直距离差异没有统计学意义(P>0.05)。X片显示被压低的下颌磨牙未出现明显的牙根吸收。结论新型下颌磨牙压低矫治器用于压入下颌磨牙治疗前牙开畸形效果明显,压入治疗未引起明显的牙周及牙根损害。Objective To evaluate the effects and clinical application of molar intrusion with a new mandibular molar intrusion appliance.Methods7patients who needed mandibular molars intrusion to correct open?bite were selected.To evaluate effects of molar intrusion,clinical examination,dental model analysis and aphalometric analysis by Winceph7.0software were used before and after intrusion treatment,SPSS17.0software was used for data analysis.Results All the mandibular molars were intruded successfully in an average time of4.0months.Cephalometric analysis before and after treatment showed that the average amount of mandibular first molars intrusion were(1.92±0.44)mm.The vertical distance to the reference plane(MP plane)per and post treatment was statistically significant(P<0.05).The average amount of maxillary first molar intrusion was(0.36±0.25)mm,with no significant difference in vertical distances to reference plane(PP plane)(P>0.05).No signs of root resorption was obsersed in radiograph of the intruded mandibular molars.Conclusion The new mandibular molar intrusion appliance has a remarkable clinical effect in correcting anterior open bite without obvious periodontal tissue damage and root resorption.teeth intrusion with the new appliance has a significant effect without apparent destruction of the periodontal tissue and root resorption.

关 键 词：新型矫治器 口外力 压低磨牙 正畸 

分 类 号：R783.5[医药卫生—口腔医学]