Premolars: Kuj hu ua bicuspids, cov hniav no muaj ob lub ntsiab lus rau crushing zaub mov. Molars: Cov hniav no muaj ob peb cusps ntawm qhov chaw tom. Cov molars pab kev sib tsoo thiab tawg ntawm cov zaub mov.
Cov hniav twg siv rau kev sib tsoo zaub mov?
Molars - Koj cov molars yog koj cov hniav loj tshaj. Lawv txoj haujlwm zoo ib yam li cov premolars, zom, kua muag, thiab zom zaub mov. Molars muaj qhov chaw tiaj tiaj loj uas ua rau lawv zoo meej rau txoj haujlwm no.
Yuav txiav thiab zom zaub mov dab tsi?
Plaub hom hniav ( incisors, canine, premolars, thiab molars) yog yam tib neeg siv los txiav, rhuav thiab zom lawv cov zaub mov! … Peb cov hniav pab peb zom thiab zom zaub mov, ua lub luag haujlwm tseem ceeb hauv kev hais lus, thiab cuam tshuam rau peb txoj kev noj qab haus huv tag nrho.
Cov molars yog dab tsi?
Premolars, tseem hu ua bicuspids, yog cov hniav nyob ruaj khov 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.
Qhov twg siv rau zom?
Occlusal - Tej zaum koj yuav xav tias qhov no yog "sab saum toj" ntawm tus hniav. Nws yog qhov chaw ntawm lub nraub qaum (molar thiab premolar) cov hniav uas siv rau tom los yog zom. Buccal - Qhov no yog cov hniav uas sab nraud ntawm koj lub qhov ncauj.
