13-18歲青少年的頜面部軟組織對稱性研究.pdf

1、廣州醫(yī)學院碩士學位論文1318歲青少年的頜面部軟組織對稱性研究姓名：林璇申請學位級別：碩士專業(yè)：口腔正畸學指導教師：梁芮20100501廣州醫(yī)學院碩士學位論文1318歲青少年的頜面部軟組織對稱性研究2AStudyonAnalysisofMaxillofacialSymmetryin1318yearoldAdolescentsinShenzhenMastergraduate：LinXuanSupervis：ProfessLiangRuiA

2、bstractObjective：Theaimofthisstudywastoevaluatethemaxillofacialsymmetryin1318yearoldadolescentsinShenzhendetectthecrelativefacts.Methods:100volunteersagedfrom13to18wererecruited(48males52females).Allofthemweretakenphotog

3、raphsfromthefrontinaccdancewiththesamestardbythesamephotographer.Thenthephotosweremcroscopicobservedby60chosenpersons(30professionals30nonprofessionals)dividedintotwogroups:symmetrygroupasymmetrygroup.Allthephotosweremea

4、suredbythesoftwaredesignedbyHuaweicompany.Result:1.61participantswereallocatedinsymmetrygroup39inasymmetrygroupTheanalysisoffacialsymmetrywassignificantlydifferentbetweentheprofessionalsnonprofessionals(p0.05）.2.Theageco

5、mpositionbetweenthesymmetryasymmetrygroupwassignificantlydifferent（p0.05）；3.Theratiosofthebilateraldistancebetweengonionpointfaciallinewassignificantlydifferentbetweenthesymmetrygroupasymmetrygroup（p0.05）.4.ch_ratiowassi

6、gnificantlycrelatedwithGo’_ratiointheasymmetrygroup.Conclusion1.Theoccurrenceoffacialasymmetrywasnotsignificantlydifferentbetweenmalesfemales.Professionalsweremesensitivetothefacialasymmetry.2.Accdingtothesurveynoteveryo

7、nehasanabsolutelysymmetricalfacialappearance.Howevermostfacialasymmetrycasescannotbefoundbyvisualobservation.3.Facialasymmetrybecomemeseverewiththemiblegrowth.4.Gonionpointisanimptantfactintheevaluationoffacialsymmetryit