Cov txheej txheem:
Video: Cov npe hniav yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov hniav raug cais raws li incisors , miv , premolars (tseem hu ua bicuspids), thiab molars . Incisors feem ntau yog siv rau kev txiav, miv yog rau kua muag, thiab molars ua haujlwm rau kev sib tsoo.
Tsis tas li ntawd, 4 hom hniav yog dab tsi?
Plaub hom tseem ceeb ntawm cov hniav yog:
- Incisors - Koj tus incisors yog yim tus hniav nyob hauv nruab nrab ntawm koj lub qhov ncauj (plaub ntawm ob qho hauv qab thiab saum).
- Canines - Koj cov dev yog cov hniav tom ntej uas tsim hauv koj lub qhov ncauj.
- Premolars - Premolars yog siv los rhuav thiab tsoo cov zaub mov.
- Molars - Koj cov molars yog koj cov hniav loj tshaj plaws.
Ib tug kuj yuav nug, muaj pes tsawg hom ntawm tib neeg cov hniav? Tsis yog delve rau hauv cov txiaj ntsig ntawm kev huv ntawm qhov ncauj, hnub no peb xav ua tib zoo saib rau hauv ntau hom hniav peb muaj thiab lawv siv. Thaum txawv cov lej muaj ntau, nws feem ntau lees paub tias peb muaj peb ntau hom hniav : Cov hniav, cov hmuv, thiab cov pos hniav.
Ntxiv mus, cov hniav yog dab tsi?
Cov cov hniav yog cov tshuaj hnyav tshaj plaws hauv tib neeg lub cev. Ntxiv rau qhov tseem ceeb rau zom, lub cov hniav ua lub luag haujlwm tseem ceeb hauv kev hais lus. Cov hlab ntsha thiab cov hlab ntsha khiav los ntawm lub pulp ntawm lub cov hniav . • Cementum: Ib txheej ntawm cov ntaub so ntswg uas khi cov hauv paus hniav cov hniav khov kho rau cov pos hniav thiab lub puab tsaig.
Koj npe koj cov hniav li cas?
Hom hniav
- Incisors. Incisors yog cov hniav ntse nyob ntawm xub ntiag ntawm lub qhov ncauj uas tom ua zaub mov thiab txiav nws ua tej daim me me.
- Canines. Canines yog tus ntse, taw qhia hniav uas zaum ze ntawm tus hniav thiab zoo li tus nqaj.
- Premolars. Premolars, los yog bicuspids, yog loj dua tus incisors thiab canines.
- Molars.
Pom zoo:
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