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WhyareKid’sTeethSoYellow?(转贴)MyChild’steethareyellownomatterwhatIdo–Whatisgoingon?Thisisoneofthemostcommonquestionswegetabout2nd,3rdand4thgradechildren.Whileplentyofkidswhoneedmorehelpbrushing,themostcommonreasonforyellowteethistheinherentdifferencesbetweenpermanentteethandbabyteethaswellasyoungvsolderpermanentteeth.Herearesomeexamples:YoungpermanentteethhavereallyREALLYbigne...[阅读全文]
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