WASHINGTON, Lub Plaub Hlis 16, 2012 / PRNewswire-USNewswire / - Kev kho hniav hauv cov hniav txhawm rau ua kom muaj kuab paug ib puag ncig, ua rau cov ntses tsis huv thiab muaj nuj nqis ntau rau cov neeg them se ntau dua li lwm cov khoom siv hniav, raws li txoj kev tshawb nrhiav tshiab niaj hnub no los ntawm kev sib koom ua ke ntawm kev noj qab haus huv, cov neeg siv khoom thiab cov ib puag ncig. [i]
"Cov kev tshawb pom ntawm tsab ntawv ceeb toom tau lees tias amalgam tsis yog qhov tsawg kawg nkaus thaum qhov thiaj li hu ua 'cov nqi sab nraud' raug rau hauv," Michael Bender, Tus Thawj Coj ntawm Mercury Txoj Haujlwm Project. “Thiab kev siv tseem muaj ntau. Kev siv cov ntaub ntawv los ntawm American Dental Association, daim ntawv tshaj tawm pom tias 32 tons ntawm cov tshuaj cog hniav yog siv nyob rau xyoo hauv Asmeskas, ob npaug ntawm cov kwv yees tam sim no.
