正畸病例分析英文版.ppt

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1、正畸B组第1小组SummaryKeyinformationlongface16-year-oldgirlfromnortheastfamilyhistorytaciturnityComewithhermomWeekend-opendmaintroubleHyperosteogeniedMandibularmandibularprotrusionAllabove？HighAngleunderbiteHereditycircumstance：Congenital（Macroglossiadisease）Acquired（1）hyperpituitarism（2）maxillarydeciduous

2、teethearly-missed、retention、Inadequatecanineabrasion（3）earlymaxillarypermanentteetheruption（4）functionalfactor：suckle、hypertrophyoftonsil、muscledysfunction（5）badhaditOtherinformationneeded（1）Inquiry：systemicdisease、badhadit、alreadytreatment、Duration、familyhistory、psychologicalguidance（2）inspection：i

3、nsidecheck：toothcount、toothshape、Oralhygiene、dentalarchshape、occlusalstatus、Softtissuelesionsoutsidecheck：photograph、Symmetricface？proportion?overlengthlowed1/3？auxiliaryexamination：X-ray：PanoramicradiographexaminationlateralcephlometricsCTOthercheck:modelanalysisTMJcheckmusculartensioncheckExtraora

4、lphotographs：Frontalview：horizontal：Facialisasymmetry,anditmovestorightside vertical：partial length is in the 1/3 lower faces lip:thedegreeofclosure、underlipisthickerthanupperLateralview：facialmorphology：concave type lip:the degree of closure、H line，E linementolabialsulcus：shallow、Mandibular advance

5、ment Intraoralphotographs：Frontalview：overbite in anterior 22、23、32、33 open bite distema in 11 and 21 crowded in maxillaryLateralview：angle ，anterior teeth is reverse overjet and reverse overbite maxillary anterior teeth：labial inclination mandibular anterior teeth：lingual inclination Occlusalview：d

6、ental archs are oval，crowdinginthemaxillary.maxillary central incisor：torsionoralhygiene：poorPeriodontium：healthy gingivaAlveolarbone：the labial bone of mandible is thinLabialfrenum、linguaefrenum：normalsoftandhardtissuesPantomography：impactedteeth：18、28、38、48normalThe measurement itemsPermanent teet

7、h periodsignificancemeasured value normal valueSNA 88 82.8 maxillaryprotrusionSNB 94 80.1 Mandibular protrusionANB-6 2.7 Negative，mandibular protrusionWits-17mm 85.4 mandibular protrusionY axis67 66.3 mandibular protrusion;Growth before the bottomNA-PA-7 31.1 Steepness of mandibular body,large mandi

8、bular Angle,high facial heightThe measurement itemsPermanent teeth period significancemeasured value normal value Max1-SN128 105.7 maxillary central incisor is labial inclinationMand1-MP66 22.8 maxillary central incisor is labial inclination and bulgingMax1-NA9mm 5.1mmmaxillary central incisor is la

9、bial inclination and bulging is largeMand1-NB16.7 125.4 Up and down the front of the dental arch degree is relatively smallThe measurement items Permanent teeth period significance measured value measured value normal valuenormal valueN-Me122mm 119.7mmThe height of the face is more than normalN-ANS5

10、2mm 65.8mmpartial length is in the 1/3 lower faces N-ANS/N-Me 43%55%partial length is in the 1/3 lower faces1、maxillaryretrusion，mandibularprotrusion2、maxillarycentralincisorislabialinclinationmandibularcentralincisorislingualinclination3、Theheightofthefaceismorethannormal，maxillarygrowthisInadequat

11、e,partiallengthisinthe1/3lowerfacesConclusiontherapeuticregimenORTHODONTIC-ORTHOGNATHICSURGERYoption1IndicationClassIII,mesioclusion(ANB-4,upper incisor is obviously labial tilted，lower incisor lingual tilted，anterior of deep reverse overjet)Pre-surgicalorthodontictreatmentAlignmentLevelingIncisalpo

12、sitionandspaceclosureCoordinationofdentalarchesandcoorrectionofposteriorcrossbiteAccordingtomovementsanddecompensationofteeth,itsbenificialtomovebones.orthognathicsurgerySagittalsplintramusosteotomyPost-surgicalorthodontictreatmentAlignmentSpaceclosingLevelingAdjustmentofanteropoetreiorpositionincis

13、orsCoordinationofdentalarchesRetentionMaintainerChincapCAMOUFLAGEoption2Toothextractionincluding2maxillarysecondpremolarandthirdmolar2mandibularfirstpremolarsextractionandthirdmolarcouldpreventupperincisorsfromuprightingandchangetheincisorpositionmaxillarprotractionImplantasskeletalanchorageformaxillaprotractionisaneffectiveandstableclinicaltreatmentforClassIIImalocclusion，whichavoidsthedentalcompensation.StraightwireappliancerelievingdentalcrowdingCompensatorymovetheupperandlowerfrontteeth,toconcealthejawdeformity.Thankyou.