Rau cov tswv tsiaj feem ntau, thaum xaiv cov zaub mov qhuav, lawv yuav tau them nyiaj ntau rau cov npe khoom, khoom noj muaj txiaj ntsig, thiab lwm yam. Tab sis qhov tseeb, muaj lwm yam tseem ceeb uas cuam tshuam rau seb cov tsiaj puas tuaj yeem tau txais cov khoom noj txaus los ntawm cov khoom noj, thiab uas yog qhov loj thiab cov duab ntawm cov khoom noj qhuav qhuav.Yog tias koj ua tib zoo saib xyuas, nws tsis yog qhov nyuaj kom pom tias cov khoom noj dev ntawm lub khw feem ntau yog puag ncig, thiab tseem muaj cov square thiab pob txha zoo li;Cov duab ntawm cov khoom noj miv yog daim duab peb sab, pentagon, lub plawv zoo li, thiab plum-puab, feem ntau nrog ntau cov npoo thiab cov fab.Feem ntau cov khoom noj dev feem ntau loj dua li cov khoom noj miv.
Ⅰ.Cov laj thawj uas cuam tshuam qhov loj thiab cov duab ntawm cov khoom noj dev thiab miv
- Cov hniav configuration ntawm dev thiab miv yog txawv
miv hniav:
Aubcov hniav:
Lub ntsej muag nta thiab qhov ncauj qauv ntawm dev thiab miv txawv heev.Lub ntug ntawm lub crown ntawm miv cov hniav yog ntse heev, tshwj xeeb tshaj yog cov premolars muaj 4 cusps ntawm lub crown.Lub cusps ntawm lub Upper thib ob thiab qis thawj premolars yog loj thiab ntse, uas yuav rhuav tau cov tawv nqaij ntawm cov tsiaj, yog li nws yog hu ua fissure.hniav.Tus miv lub qhov ncauj yog luv thiab dav: 26 cov hniav deciduous thiab 30 cov hniav mus tas li;tus dev lub qhov ncauj ntev thiab nqaim: 28 deciduous thiab 42 cov hniav mus tas li.
Piv nrog rau cov hniav deciduous, tus miv cov hniav tas mus li muaj plaub lub molars ntawm ob sab ntawm lub puab tsaig sab sauv thiab sab qis.Muaj ntau qhov kev hloov pauv ntawm cov hniav mus tas li ntawm tus dev.Piv nrog rau cov hniav deciduous, muaj 14 cov hniav ntxiv.Lawv yog 4 premolars ntawm ob sab ntawm lub puab tsaig sab sauv thiab qis, 2 lub puab tsaig ntawm sab laug thiab sab xis lub puab tsaig, thiab 3 lub puab tsaig hauv lub puab tsaig.
Cov dev lub puab tsaig hloov tau yooj yim thiab kev kho hniav tso cai rau lawv zom zaub mov zoo li tib neeg ua.Thaum tus dev zom zaub mov, cov hniav tuaj yeem txav mus ntev + tom qab, tsoo + txiav + sib tsoo cov zaub mov.Miv tsis muaj lub puab tsaig txav mus los thiab muaj pes tsawg tus molars thiab premolars, yog li lawv tsuas tuaj yeem txav mus ntev thaum zom zaub mov, txiav thiab zom cov khoom noj nrog lawv cov hniav.Ntawd yog, cov dev tom nce thiab nqis, thaum miv tab tom sib tsoo rov qab.
2. Tus cwj pwm noj dev thiab miv txawv
Cov dev thiab miv yog cov tsiaj txhu, tab sis dev muaj ntau yam zaub mov ntau dua li miv, thiab lawv qhov kev thov rau cov nqaij yog tsawg dua li cov miv, yog li qhov no ua rau miv cov hniav yuav tsum muaj peev xwm tuav tau nqaij zoo dua, thiab miv muaj ntse. cov hniav., ntse, thiab muaj peev xwm txiav zoo.Cov qauv no yog qhov tsim nyog rau nws los rhuav cov tsiaj me xws li nas thiab noog rau hauv ob halves.Thaum noj mov, miv cia siab rau lawv tus kheej kom loj hlob barbs.Tus nplaig crushes cov tsiaj nyeg rau hauv me me ntawm cov nqaij.
Miv tuaj yeem tau txais cov khoom noj pelleted hauv ntau txoj hauv kev, feem ntau yog zom nrog lawv cov hniav lossis hooking nrog lub ntsis ntawm lawv tus nplaig.Yog li ntawd, cov khoom noj uas yooj yim dua rau cov miv, lawv qhov kev lees paub ntau dua.Tsis muaj ib txoj hauv kev rau dev kom tau zaub mov.Txawm li cas los xij, cov hniav brachycephalic, rau pem hauv ntej-protruding canine hniav yog qhov nyuaj rau tom, thiab cov dev no nyiam siv lawv tus nplaig rau zaub mov.
Ntau hom dev thiab miv muaj kev noj haus sib txawv:
Noj ob tus miv ntawm cov miv ua piv txwv, Garfield thiab Suav pastoral miv, nws tuaj yeem pom los ntawm lub ntsej muag qauv uas lawv muaj qhov sib txawv pom tseeb, thiab qhov sib txawv no yuav cuam tshuam rau lawv txoj kev noj mov.Ua ntej tshaj plaws, Garfield tus cwj pwm ntawm lub ntsej muag txiav txim siab tias lawv tsis tuaj yeem noj cov zaub mov qhuav uas zoo sib xws los yog nplua, thiab qhov no tsis yog qhov teeb meem loj rau cov miv pastoral Suav.
Qhov thib ob, thaum Garfield lub qhov ncauj noj, nws tsis tuaj yeem noj cov khoom noj miv qhuav nrog cov khoom loj dua, thiab nrog cov khoom noj tib yam, Garfield qhov kev noj zaub mov ceev tuaj yeem suav tias yog qeeb heev.Tshwj xeeb tshaj yog qhov puag ncig, cov khoom noj miv qhuav qhuav yog qhov nyuaj heev rau lawv noj thiab zom.Cov teeb meem zoo sib xws kuj muaj nyob hauv cov tsiaj dev sib ntaus sib tua.
Post lub sij hawm: Jun-01-2022