Craniofacial morphology characeristics of patients with peg-shaped upper lateral incisors

VernacularTitle:上颌锥形侧切牙患者颅颌面形态特征的研究
Author: Ni LIAO ; Nuo ZHOU ; Jian DAI ; Yi ZHENG ; Shuixue MO
Publication Type:Journal Article
Keywords: Peg-shaped incisor; Upper lateral incisors; Craniofacial morphology characteristics
From: Journal of Practical Stomatology 2014;(4):492-495
CountryChina
Language:Chinese
Abstract: Objective:To analyze the craniofacial morphology characeristics of patients with peg-shaped upper lateral incisors. Methods:1 13 patients,aged 12 ~28 years,with peg-shaped upper lateral incisors were included,lateral cephalograms were taken and analyzed cephalometrically.Data were statistically analysed.Results:The sagittal facial patterns were skeletal Class Ⅰ(40.71%),skeletal Class Ⅱ(9.73%)and skeletal Class Ⅲ(49.56%).The vertical skeletal patterns were average vertical type (41.59%),high vertical type(18.58%)and low vertical type(39.82%).SNA,ANB,Ptm-A(mm),U1-SN,L1-NB,UL-EP were smaller(P<0.05)and SNB,PP-GoGn,SN-MP,Y axis,U1-L1,U1-NA,L1-MP and Z angles were increased(P<0.05).Conclu-sion:Patients with peg-shaped upper lateral incisors show Class Ⅲ skeletal pattern with maxillary retrognathia and mandibular prog-nathism.