Tus canines (los yog cuspids, txhais tau tias tus hniav nrog ib qho taw tes) yog nyob rau ntawm ob sab ntawm qhov incisors. Lawv yog rau tuav thiab rhuav zaub mov.
Cov hniav twg yog cov hniav ntse tshaj?
Canines - Koj cov canines yog cov hniav tom ntej uas tsim hauv koj lub qhov ncauj. Koj muaj plaub ntawm lawv thiab lawv yog koj cov hniav ntse tshaj plaws, siv los rhuav tshem cov zaub mov. Premolars - Premolars yog siv los rhuav thiab zom zaub mov.
koj cov cuspids nyob qhov twg?
Cuspids muaj nyob ntawm ob lub puab tsaig sab sauv thiab sab qis ntawm koj cov incisors (cov hniav tiaj tus) thiab premolars (cov hniav me me). Yog hais tias lub suab nyuaj dhau lawm, nws yuav yooj yim dua mus rau ntawm daim iav - tus cuspid yog tus hniav thib peb rau sab laug lossis sab xis ntawm qhov chaw thaum koj luag nyav.
Cov hniav twg yog incisors?
Incisors - Lub plaub hniav pem hauv ntej ntawm ob lub puab tsaig sab sauv thiab sab qisyog hu ua incisors. Lawv lub luag haujlwm tseem ceeb yog txiav zaub mov. Ob lub incisors ntawm ob sab ntawm midline yog hu ua central incisors. Ob tug hniav uas nyob ib sab mus rau lub hauv paus incisors yog hu ua lateral incisors.
Cov hniav twg yog Mamelons tam sim no?
Mamelons yog pob me me ntawm koj plaub hniav pem hauv ntej hu ua incisors. Lawv feem ntau tshwm sim ua ib pawg ntawm peb thiab hnav thaum koj muaj hnub nyoog. Mamelons tsis xav tau kev kho mob tshwj xeeb.
