Ⅱ類骨面型前牙深覆蓋患者牙與牙槽特征分析及其矯治效果.pdf

1、內(nèi)蒙古醫(yī)學(xué)院碩士學(xué)位論文Ⅱ類骨面型前牙深覆蓋患者牙與牙槽特征分析及其矯治效果姓名：劉愛青申請學(xué)位級別：碩士專業(yè)：口腔臨床醫(yī)學(xué)指導(dǎo)教師：李利繆羽201005019Astudyofdentoalveolarcharacteristicsandtreatmentinskeletalclass1Ipatients而thanteriorexcessiveoverjetAbstractObjectiveTheaimsofthisstudyweret

2、oanalyzethetoothpositionanddentoalvedarcharacteristicsamongskeletalclassⅡpatientswithexcessiveoverjet，andtoinvestigatetheeffectsoftreatmentinskeletalclassIIpatientsbyanalyzingtheX一瑚ycephalometrieMethods60skeletalclasslIp

3、atientsweredividedintotwogroupsbasedonoverjet(overjet：3—5nunand58mm)andwereanalyzedaccordingtotheTencephalometriemeasurementscoinparedwiththenormalbytheAnalysisofvariance(ANOVA)AndthentheskeletalclassIIpatientsweredivide

4、dintotwogroupsbasedonextractionoffourfirstpremolars(34cases)andnon—extraction(19cases)andanalyzedthetreatmenteffectsbycomparingpre—andpost—treatmentaccordingtothecephalometricmeasurementsTherest7caseswereremovedfromthest

5、udybecauseoftheextractionpattemResultsComparedpatientswitllthenormal，U1一SN，L1一MP，U1一NA，LI—NB，MxAABHandMdAABHweresignificantlyincreasedinexcessiveoverjetgroupI(overjet：3—5ram)andgroupⅡ(overjet：5一Smm)andL1一SNWassignificand

6、yreduced，andU1一SN，L1一MP，U1一NA，L1一NBWeresignificantlyincreasedastheoverjetincreaseComparingthecephalomelziemeasurementsofthepre—andpost—treatmentinextractionandnon—extractiongroup，U1一SN，L1一SN，L1一MP，OJ，ANBweresignificantin

7、nonextractiongroupandU1一SN，L1一SN，L1一MP，U1一NA，L1一NB，OJ，ANB，SNAweresignificantinextractiongroupConclusionsMaxillyandmandibularincisorswereobdouslytiltedtothehpinskeletalclassIIpatientswithexcessiveoverjetTheheightofanterio

8、ralveolarofma】【iUaryandmandibularwereincreased，ThisprocesswagthecompensatorychangeinskeletalclassIIpatientswithdeepoveIjetTheinvestigationoftheeffectsoftreatmenttoldUSweshouldtreatthemildskeletalclassⅡpatientswithexcessi