1. Cov hniav loj tshaj plaws yog mandibular thib ob molar mandibular thib ob molar FMA. 290277. Anatomical terminology. Lub mandibular thib ob molar yog tus hniav nyob distally (tawm ntawm nruab nrab ntawm lub ntsej muag) los ntawm ob qho tib si mandibular thawj molars ntawm lub qhov ncauj tab sis mesial (mus rau nruab nrab ntawm lub ntsej muag) los ntawm ob qho tib si mandibular thib peb molars. Qhov no muaj tseeb tsuas yog nyob rau hauv cov hniav mus tas li. https://en.wikipedia.org › wiki › Mandibular_second_molar
Mandibular thib ob molar - Wikipedia
. 2. Lub mandibular lateral incisor yog thawj tus hniav me tshaj plaws.
Tus hniav twg yog qhov loj tshaj?
Molars. Molars yog qhov loj tshaj ntawm tag nrho cov hniav.
Tus thawj incisor twg yog qhov loj tshaj thiab tseem ceeb tshaj?
Muaj ob hom incisors: Central incisors yog cov nyob rau hauv pem hauv ntej thiab nruab nrab ntawm lub puab tsaig, hu ua mesial txoj hauj lwm. Qhov loj tshaj plaws incisors yog lub maxillary central (sab saum toj thiab nruab nrab) incisors. Lawv yog cov hniav tseem ceeb tshaj plaws pom thaum ib tug neeg luag ntxhi.
Cov hniav twg yog qhov ntev tshaj plaws hauv tib neeg cov hniav?
Cov kab mob sab saud ntawm tib neeg muaj qhov ntev tshaj plaws ntawm tag nrho cov hniav ntawm tib neeg cov hniav.
Cov hniav hauv qab no twg yog cov hniav loj tshaj plaws thiab muaj zog tshaj plaws?
Maxillary molars vim lawv qhov loj thiab lawv 'anchorage' nyob rau hauv lub puab tsaig, cov molars yog covloj tshaj thiab muaj zog maxillary hniav. Txhua maxillary molar feem ntau muaj plaub cusps, nrog ob lub cusps ntawm lub buccal feem ntawm lub rooj occlusal thiab ob ntawm cov lus.
