安氏ⅲ类错(牙合)患者牙弓宽度的特征分析

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1、·英文结构式摘要·ThestudyofcharacteristicofarchwidthinclassⅢmalocclusionobjectiveTheaimofthisstudywastoanalyzethetransversedimensionsofthedentalarchesandalveolarwidthsofClassIllmalocclusionandClassImalocclusionbymeasuringthedentalcastsandskeletalmandibular-maxillarybasesinuntreatedsubjcotswithclassIllmal

2、occlusionpatients．MethodsThisstudyincludedtwoparts，thefirstpartconsistedof40patientswithclassIIImalocclusionand40patientswithclassImalocclusioninOrthodonticdepartment，ChinaMedicalUniversitySchoolofStomatology．Thefollowingitemsweremeasured：UCC，LCC，UPP,LPP,UMM，LMM，UUAC-C，LUAC-C，UUP-P,LUP-P,UAMM，LAM

3、M．Measurernentresultswerecomparedbyt-test．Thesecondpartconsistedof20patientswithclassIIImalocclusionand20patientswithclassImalocclusionaged10to14inOrthodonticdepartment，ChinaMedicalUniversitySchoolofStomatology．Thefollowingitemsweremeasured：J—J，Ag．Ag,UM-UM，LM—LM，Molardifference(UM—LM)．Measurement

4、resultswerecomparedbyt-test．ResultsThefirstpart：TheresultsofcomparingdentalarchandalveolarwidthofClassIIImalocclusiongroupwithClassImalocclusiongroupinmaxillaryisallofdentalarchitemsofexaminationinClassHIarebiggerthanthatinClassIexceptUCC．AndinmandibularisallofalveolarwidthofClassIllmalocclusiong

5、rouparebiggerthanthatinClassI．TheresultsofcomparingdentalarchandalveolarwidthofmalesClassHImalocclusiongroupwithClassImalocclusiongroupinmaxillaryisUPPinClassIIIisbiggerthanthatinClassI．Theresultsofcomparingdentalarchandalveolarwidthof3femalesClassIIlmalocclusiongroupwithClassImalocclusiongroupin

6、maxillaryisUCC，UACCinClassIIIissmallerthanthatinClassI．Thesecondpart：TheskeletaltransversewidthofmandibularinClassIllweresignificantlybiggerthanthatinClassI(P<0．05)．UM—LMinClassIVSUM—LMinClassHIhasstatisticalsignificance．ConclusionThefirstpartconclusion：ThealveolarwidthofClassIllgroupinmandibular

7、isbiggerthanClassIgroup，whichindicatealveolarwidthofClassIIIgroupinmandibularhastendencyofexcessivedevelopment．Archwidthshavegenderdifferences．Thesecondpartconclusion：TheskeletaltransversewidthofmandibularinClass111wer