Premolars, tseem hu ua bicuspids, yog cov hniav mus tas li nyob nruab nrab ntawm cov molars hauv qab ntawm koj lub qhov ncauj thiab koj cov hniav tsiaj, lossis cuspids, nyob rau pem hauv ntej. Vim tias premolars yog cov hniav hloov pauv, lawv pom cov yam ntxwv ntawm cov molars thiab canines thiab feem ntau zom thiab zom zaub mov.
cov premolars nyob qhov twg hauv lub qhov ncauj?
Qhov Tseeb Txog Premolars
Premolars, tseem hu ua bicuspids, yog cov hniav nyob ruaj khov nruab nrab ntawm koj cov molars hauv qab ntawm koj lub qhov ncauj thiab koj cov hniav canine (cuspids) pem hauv ntej.
Koj qhov premolar yog dab tsi?
Premolars - Premolars yog siv los rhuav thiab zom zaub mov. Tsis zoo li koj cov incisors thiab canines, premolars muaj qhov chaw tiaj tus. Tag nrho koj muaj yim premolars. … Lawv txoj haujlwm zoo ib yam li cov premolars, zom, kua muag, thiab zom zaub mov.
peb cov hniav 2 lub npe hu li cas?
Koj muaj ob kab hniav. Thawj yog hu ua thawj thiab loj hlob thaum muaj hnub nyoog 2. Lub thib ob yog hu ua tus hniav tas mus li.
peb muaj pes tsawg premolars?
Premolars - ib sab ntawm koj cov hniav canine yog koj cov premolars (tseem hu ua cov hniav bicuspid). Koj muaj 8 premolars nyob rau hauv tag nrho: 4 ntawm koj lub puab tsaig sab saum toj thiab 4 hauv qab. Lawv loj thiab dav dua koj cov hniav thiab cov hniav, thiab siv rau crushing thiab sib tsoo zaub mov.
