Cov canines feem ntau poob thaum muaj hnub nyoog 9 txog 12 xyoos, thaum thawj thib ob molars yog tus menyuam cov hniav kawg uas koj tus menyuam yuav poob. Cov hniav zaum kawg no feem ntau yog los ntawm cov hnub nyoog 10 thiab 12.
cov molars puas poob ntawm lawv tus kheej?
Yog tus menyuam hniav xoob, nws tseem yuav ntog ib txwm ntawm nws tus kheej. Raws li cov hniav tas mus li tshwm sim ntau dua los ntawm cov pos hniav, qhov siab ntawm tus nplaig yuav pab thawb cov hniav uas tsis zoo rau cov neeg laus mus rau hauv daim ntawv koov, yog li nws nyob rau hauv qhov tseeb.
Puas yog tus hniav zaum thib ob puas poob?
Koj tus menyuam yuav pib plam nws cov hniav (tus menyuam hniav) nyob ib ncig ntawm 6 xyoo. Thawj cov hniav uas yuav plam feem ntau yog lub hauv paus incisors. Qhov no yog tom qab ntawd los ntawm kev tawg ntawm thawj cov molars tas mus li. tus menyuam tus hniav kawg feem ntau yog ploj thaum muaj hnub nyoog 12 xyoos, thiab yog cuspid lossis molar thib ob.
Puas yog ib txwm molar ntog?
Tus mob no feem ntau yog ib ntus tab sis yog nws tseem nyob nws yog ib yam uas yuav tsum tau kuaj los ntawm tus kws kho hniav. Cov hniav poob ntxov: Nws muaj peev xwm ua rau tus menyuam mos cov hniav ntog ua ntej cov hniav mus tas li npaj kom tawg, feem ntau vim muaj kev raug mob los yog hniav lwj.
Yuav ua li cas yog cov hniav xoob nyob ntev dhau?
Yog koj ua kom nws puas tsuaj, koj yuav ua rau muaj kis tau. Koj kuj tuaj yeem ua rau cov pos hniav puascov ntaub so ntswg phem heev uas koj tus menyuam yuav tsum tau phais cov pos hniav kom pab cov pos hniav zoo.
