A Clinical Guide to Orthodontics-07

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1、03p143-148.qxd12/01/200411:24Page143PRACTICEINBRIEF●Thereisnogoodevidencethatorthodonticscuresorcausestemporomandibularjointdysfunction●Extractingteethdoesnotinevitablyresultinanalteredprofile●Thereisaneedforbetterqualityresearchinmanyofthecontroversialareasinorthodontics7VERIFI

2、ABLECPDPAPEROrthodontics.Part7:FactandfantasyinorthodonticsP.Williams1,D.Roberts-Harry2andJ.Sandy3NOWAVAILABLEClinicalresearchhaspreviouslylackedgoodmethodologyandmuchopinionwasbasedonASABDJBOOKanecdotewhichiswidelyregardedastheweakestformofclinicalevidence.Therearefewrandomised

3、controltrialsinorthodonticswhichsupportorrefuteareasofdogma.Thenumberofrandomisedcontroltrialsisincreasingsignificantly.Thereiscurrentlyhowevernogoodevidencethatorthodonticscausesorcurestemporomandibularjointdysfunction,thatappropriateextractionsinorthodonticsruinpatients'profil

4、es,orthattheorthodontistisabletosignificantlyinfluencefacialgrowthwithappliances.Orthodontics,likeotherfieldsofmedicineandTherearevariouslevelsofevidencebeneathORTHODONTICSdentistryhasitsfairshareofcontroversies.the‘goldstandard’,ofwhichtheweakestisanec-1.WhoneedsSomeofthesecont

5、roversieshavehauntedthedotalevidence.Inthefieldoforthodonticsthereorthodontics?professionsinceitsinceptionandsomeindi-arefewwell-designedrandomisedcontrolledtri-2.Patientassessmentandvidualsmaybereluctanttochangetheirtreat-alswhichlendthemselvestoasystematicexaminationImentphilo

6、sophiesinthelightofnewclinicalreview.Currentlytherearetwosuchreviews,3.Patientassessmentandevidence.namelythechangeofintercaninewidthfollow-examinationIIOrthodonticshasevolvedfrommanyyearsofingorthodontictreatmentandthetreatmentof4.Treatmentplanning3,4clinicalexperience,inwhicht

7、heopinionsofposteriorcrossbites.5.Appliancechoicesrespectedindividualsduringthebirthofthespe-Recently,mediaattentionhasfocusedon6.Risksinorthodonticcialityhavedeterminedhoworthodonticsviewsmadebyasmallnumberoforthodontiststreatmentshouldbepractised.Aproblemwiththisformofandgener

8、aldentalpractitionersontheadverse7.Factandfanta