資源描述：
《生長發(fā)育高峰期患者快慢速擴弓的cbct分析》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、AbstractObjective：ApplicationspecialdentalmaxillofacialconebeamCT，inrapidlydevelopingwithdentalarchstenosisweretreatedbybandedexpander,andcomparedbeforeandafterthechangeofskeletalandtooth,thenasalcavity,SOastoprovidereferenceforclinicaldiagnosisandtreatment．Met
2、hod：Selecthospitaloftianjinuniversityoforthodonticdivisioninthegrowthpeakdentalarchstenosis，40cases(1argest：13yearsold，smallest：11yearsold，meanage12．3+／．0．4years)．ApplicationofCBCTimagingscansbeforeandaftertheenlargementinpatientswithbow,andsoftwareinviv05recon
3、structionimages，adjustimageXaxisthroughtheorbitalplane，theYaxisthroughnasalrootpointandthepogonionattachment,Zaxisthroughdoubleearpointofattachment．Choosecoronalimagesmeasuredthefirstmolars，thesecondpremolar,thefirstpremolar,canineteethtotheamountofopenpalatalr
4、aphe，AngleofbuccalandlingualalveolarbonetotheYa)【is．t11edistancebetweenthebasebonearoundthepits；theanteriorandposteriornasalcavityweretaken，measuringthedistancebetweenthebasewidthandthenasallateralwallofnasalcavity；Takeathree-dimensionalimage，removetoothbodyout
5、sideofallorganizations，measuredthelineardistancebetweenthebuccalsideofthefirstmolars，thesecondpremolar,thefirstNemolar,canineteeth，anditsdistancebetweentherootapex．3Dimages，measuredthedistancebetweentheouterpointofthezygomatic，zygomaticalveolarcrestarconbothsid
6、esofthedistancebetweenthepits，themidpointbetweentwopointsofattachmentdistance；Choosethreedimensionalimagemeasurementofsofttissueofnasalsofttissuenosemostprotrudingpointandbaseandthewidthofthepits．SPSS17．0softwarewasappliedtothemeasurementresultsaftertreatmenttb
7、rindependentsamplesttest，andthetestresultswereanalyzed·ResuIt：1．Therapidmaxillaryexpansionatcentralincisor，canineteeth，thefirstpremolar，thesecondpremolarandthefirstmolarlongaxisopenamounted36．7％，34．9％。31．9％，29．5％，23．5％ofscrewopened；Slowmaxillaryexpanmonwere29．4
8、％，29．2％，28．5％，26．4％，28．5％．Palatalraphepyramidopen，thebottomlocatedattheincisortoothposition，tlletoppointingtotherear．RapidandslowexpansionIV天津醫(yī)科大學(xué)碩士學(xué)位論文groupsstatisticdiffer
