恒牙初戎安氏ⅱ类、ⅲ类错（牙合）畸形软组织形态比较分析

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1、Thepatientswerebetween12to17”yearsold,allfromSi⋯chuanprovinceandHannationality，withratio4：5ofmaleandfemale．Theywerehealthyandgrowingwell．Theywereinearlypermanentdentitionsperiodandhadnottakenanyorthodontictreatmentbefore．Theydidn’thaveanytemporomandibularjo

2、intdiseases，facialdeformity，nosedeformity，andfacialcosmeticoperations．ThroughtheanalysisofmeasurementofclassIIandclassIIImalocclusionsofttissuerelatedsign，thisexperimentobservedthedifferencesoflateralprofileofearlypermanentdentitionsoftheteenagers，andanalyz

3、edtherelativehardtissueelementswhichcausedthedifferences，thereforetogivetheevidencetosupportclinicaldiagnosisandtreatment．AlldatawereanalyzedstatisticallybysoftwareSPSS17．0．Results：1．ThenasalmorphologyhasnoobviousdifferencebetweenclassIIdivision1，classIIdiv

4、ision2andclassIIImalocclusions．2．AmongtheanalysisofclassIIdivision1malocclusiongroupandclassIIImalocclusiongroupsofsinglefactorvariance，thereweresignificantdifferencesbetweenthe8softtissuemeasurementindexes(P

5、，Pg．Pg’，Pg’liSi，SiPg’Li，LiSiPg’．Therewerealsosignificantdifferencesbetweenother8hardtissueindexes(PO．05)．Softandhardtissuecorrelationa

6、nalysisshowedthejawposition，inclinationofupperandlowerincisors，facialheight，mandibulargrowthdirectionarerelatedtothe5mentolabialissulcus．3．SinglefactoranalysisofvarianceofthegroupeddataofclassIIdivision2malocclusionandclassIIImalocclusiongroupshowsstatistic

7、allysignificantdifferenceof8indexesofsofttissues(P<0．05)，whichwereupperlipconcavedeep，Hangle，Li-Hline，Si-Hline，SnLsCmangle，CmSnLsangle，LiSianglePg’，L／FH，andstatisticallysignificantdifferenceof6hardtissues(P

8、，U1一L1．nasolabialangleandmentolabialreginshowedsignificantdifferencesp