【Itmightseemhardtoimaginethatabadtoothcouldbedeadly.ButdoctorsintheWashingtonareasaidaboydiedwhenatoothinfectionspreadtohisbrain.Theysaiditmighthavebeenpreventedhadhereceivedthedentalcareheneeded.Hewas12】|小学英语问答-字典翻译问答网

问题标题：

【Itmightseemhardtoimaginethatabadtoothcouldbedeadly.ButdoctorsintheWashingtonareasaidaboydiedwhenatoothinfectionspreadtohisbrain.Theysaiditmighthavebeenpreventedhadhereceivedthedentalcareheneeded.Hewas12】

问题描述：

Itmightseemhardtoimaginethatabadtoothcouldbedeadly.ButdoctorsintheWashingtonareasaidaboydiedwhenatoothinfectionspreadtohisbrain.Theysaiditmighthavebeenpreventedhadhereceivedthedentalcareheneeded.Hewas12yearsold.

ExpertsattheNationalInstitutesofHealthsaygooddentalcarestartsatbirth.Breastmilktheysayisthebestfoodforthehealthydevelopmentofteeth.Breastmilkcanhelpslowbacterialgrowthandacidproductioninthemouth.

Butdentistssayababy'sgumsandearlyteethshouldbecleanedaftereachfeeding.Useaclothwithalittlewarmwater.Dothesameifababyisfedwithabottle.Expertssayifyoudecidetoputyourbabytosleepwithabottlegiveonlywater.

Whenbaby'steethbegintoappearyoucancleanthemwithawettoothbrush.Dentistssayitisimportanttofindsofttoothbrushesmadeespeciallyforbabiesandtousethemverygently.

Theuseoffluoride(氯化物)toprotectteethiscommoninmanypartsoftheworld.Forexampleitisoftenaddedtodrinkingwatersupplies.Thefluoridemixeswithenamel(釉质)thehardsurfaceonteethtohelppreventholesorcavitiesfromforming.

Butyoungchildrenoftenswallowtoothpastewhentheybrush.TheAmericanAcademyofPediatricDentistrynotesthatswallowingfluoridatedtoothpastecancauseproblems.Soyoungchildrenshouldbecarefullysupervisedwhentheybrushtheirteeth.Andonlyasmallamountoffluoridatedtoothpastethesizeofagreenpea，shouldbeused.

Parentsoftenwonderwhateffectthumbsuckingorsuckingonapacifiermighthaveontheirbaby'steeth.Dentalexpertsgenerallyagreethatthisisfineearlyinlife.

TheAmericanAcademyofFamilyPhysicianssaysmostchildrenstopsuckingtheirthumbbytheageoffour.Ifitcontinuesthegroupadvisesparentstotalktotheirchild'sdentistordoctor.Itcouldinterferewiththecorrectdevelopmentofpermanentteeth.

59．Allthefollowingstatementsaregoodtotheteethexceptthat________.

A．thechildrenliveonthebreastmilkeveryday

B．thechildrenbegintobrushtheirteethwhentheyareoldenough

C．thechildrenusefluoridetoothpastetobrushtheirteeth

D．thechildrenformthehabitofsuckingtheirthumbsintheirearly

李晓林回答：

　　BAD

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