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1、UnitNineDiseasesoftheTemporo-mandibularJointThecommondiseasesofthetemporo-mandibularjointaresubluxation,dislocationandankylosis.Theinfectionofthisjointisrare.Subluxation半脫位Dislocation脫位Ankylosis關(guān)節(jié)強(qiáng)直Subluxation.Subluxationreferstoaselfreducingderangementbetweenthecomponentsofajoint.Self
2、reduce自行使復(fù)位Derangement紊亂Whenreferringtothetemporo-mandibularjoint,thetermfrequentlyisusedtodescriblethesituationwhenthecondylemovesanteriortothearticulareminenceduringopeningexcursion.Themainsymptomsarecrackle,painandlimitationofjaw.Thetreatmentisverycomplex.Condyle髁狀突Articular關(guān)節(jié)的Emine
3、nce隆凸,隆起Excursion移動(dòng)Crackle彈響Dislocationofthetemporo-mandibularjoint.Thetemporo-mandibularjointmaybecomedislocatedasaresultofexternaltrauma,suddenorprolongedwideopening.Trauma創(chuàng)傷Predisposingtodislocationisusuallyextremecapsularlaxity,suchasthatassociatedwithchronicsubluxation,awideopenin
4、gcanpullthecondyleoverforwardtobecomelocatedinfrontofthearticulareminence,andthenitcannotreturntotheglenoidfossa.Predispose使易罹患Laxity松馳Glenoid關(guān)節(jié)窩的Ankylosisofthetemporo-mandibularjoint.Ankylosiscanbedividedintotwocategories:falseankylosisandtrueankylosis.Falseankylosis:Falseankylosismay
5、beduetotrauma,suchasgunshotwounds,withorwithoutinvolvementofjawbone,inhealingofwhichtherehasbeenconsiderableformationofscartissueeitherinthemuscleorinthesofttissuesanywherebetweentheupperandlowerjaws.Scartissu瘢痕組織Inflammationinthisareamaybefollowedbyorganizationofexudateandformationoff
6、ibroustissue.Falseankylosismaybeduetoscarsfollowingextensiveintraoralulceration,Exudate滲出物Ulceration潰瘍theresultofnoma,scarletfeverorotheracuteexanthemas.Itisfrequentlyseenaftertreatmentofmalignantgrowthofthemouthbycautery,X-myandradium.Noma壞疽性口炎Scarletfever猩紅熱Exanthemas疹Cautery燒灼術(shù)Infal
7、seankylosis,therestillnearlyalwaysbesomemovementpresent.Thecauseofthelimitationwillusuallybeevidentonexamination.Theamountofresistanceencounteredtoattempttoseparatethejawsshouldbetestedbymeansofwedgemouthgaginsertedbetweentheteeth.Bymeansof藉Wedge楔Mouthgag開口器Inmildcases,thisre-sistanc
