Cov cuspid lossis canine feem ntau poob ib puag ncig 11.5 xyoos. Cov hniav tom ntej no, thawj thiab thib ob cov molars tau ploj thaum muaj hnub nyoog 10.5 xyoo.
Hnub nyoog twg cov hniav pib tawm?
Me nyuam txoj kev noj qab haus huv
Teb Los Ntawm Thomas J. Salinas, D. D. S. Tus me nyuam cov hniav (cov hniav hauv paus hniav) feem ntau pib xoob thiab ntog los ua chaw rau cov hniav mus tas li ntawm hnub nyoog 6. Txawm li cas los xij, qee zaum qhov no tuaj yeem ncua ntev li ib xyoos.
Yuav siv sijhawm ntev npaum li cas kom cov molar plam tawm?
Ib zaug xoob, tus hniav me nyuam tuaj yeem nqa mus qhov twg los ntawm ob peb hnub mus rau ob peb hlis kom ntog. Txhawm rau ua kom cov txheej txheem nrawm, koj tuaj yeem txhawb koj tus menyuam kom wiggle nws cov hniav xoob. Tus hniav tshiab yuav tsum pib tshwm rau ntawm cov hniav uas ploj lawm sai sai tom qab, txawm hais tias nws yuav siv sij hawm ntau lub hlis kom loj hlob tiav.
Puas yog premolars yuav tsum ntog?
Thaum cov no poob lawm, lawv hloov los ntawm permanent premolars Txog thaum cov premolars loj hlob tuaj, lawv yuav tshwm sim thaum muaj hnub nyoog 10-12, nrog rau thawj premolars tshwm sim los ntawm cov hnub nyoog ntawm 10-11, thiab qhov thib ob premolars tshwm sim los ntawm cov hnub nyoog ntawm 10-12, raws li The Cleveland Clinic.
Yuav ua li cas yog cov theem ntawm cov hniav tawg?
Stage 2: (6 lub hlis) Thawj cov hniav uas tawg yog cov hniav sab sauv thiab sab hauv qab, cov hniav incisors. Theem 3: (10-14 lub hlis) Thawj Molars tawg. Theem 4: (16-22 lub hlis) Canine cov hniav (nruab nrab ntawm incisors thiab molars saum thiab hauv qab) yuav tawg. Kauj Ruam 5: (25-33 lub hlis) Cov molars loj tuaj.
