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Thefunctionofteeth①Teethhelpyoutoformwordssothatyoucanspeakproperly.②Teethbiteandchewfoodsothatitissmallenoughtobeswallowed.③GoodTeethmakeusseemmorebeautiful.Therearethreesortteethinourmouth.Differentteethdodifferentjobs.Incisors(门牙)areforcutting.Canines(犬齿)arefortearing.Molarsandpre-molars(臼齿)grindupfooduntilit'ssmallenoughtoswallow.Namesofsometeeth•Incisor门牙•Canine犬齿•Molar臼齿•Wisdomtooth智齿•Deciduouscuspid乳尖牙Wisdomtooth智齿Incisor门牙Canine犬齿Molar臼齿Deciduouscuspid乳尖牙ThestructureofatoothDentalcuspDentalcrownCollumdentisToothrootRootapexRootfurcation•However,wemaygetatoothachesuddenly,especiallyinthelateevening?Sometipsoftreatingtoothache•holdingsomewaterinyourmouth,andmakinganefforttogargle(漱口).•slicingapieceofginger,andbitingitinthepainfulsectionwithyourteeth.•vinegar50milliliter,joiningboiledwater50milliliter,andthenholdingitinyourmouthandgargling.•goingtothedentistimmediately.Howtoprotectyourteeth①learntobrushteeth.“1233”.1toothpasteforonepersontwiceadaylast3minutesevery3month②comeintobeinggoodeatinganddrinkhabitsfoodcontaincalcium(钙)lesssnackschewingfoodNosmoking③visitdentistsregularlyCleanandpolishyourteethWordlistabouttooth•dentist牙医•bucktooth龅牙•gum牙龈•dentalbrace牙套•dentalcalculus牙垢•toothache牙痛•dentistry牙科•denture假牙•toothpaste牙膏•toothbrush牙刷•brush/cleanyourteeth刷牙•getatoothache牙疼•decayedtooth蛀牙•departmentofstomatology口腔科•dentalclinic牙科诊所•dentaltechnician牙科技师Phrasesabouttoothcutyourteethonsth.todosth.thatgivesyouyourfirstexperienceofaparticulartypeofwork.eg:Shecutherteethonlocalradio.setsb’steethonedgetomakesb.feelphysicallyuncomfortable.eg:Justthesoundofhervoicesetsmyteethonedge.intheteethofsth.1.inspiteofproblems,opposition,etc.eg:Thenewpolicywasadoptedintheteethoffiercecriticism.2.inthedirectionthatastrongwindiscomingfrom.eg:Theycrossedthebayintheteethofahowlinggale.cutatooth(ofababy)出牙，长出新牙getyourteethintosth.专注于，全力投入haveteeth(ofanorganization,alawetc.)具有大威力，有杀伤力Ihavejusthadatoothoutatthedentist’s.Sheansweredthroughclenchedteeth.Thecatsankitsteethintohisfinger.Treatteethkindlykeepsmileeveryday