49k2EQJWMiJ v.huanqiu.comarticle我国成年人牙石检出率超90%/e3pmh2fmu/e3pn61vrg1663724303252责编:洪祖诚央视网166372430325211[]//img.huanqiucdn.cn/dp/api/files/imageDir/6bc52b81a1736e86db2fc67b24ef381fu0.jpeg