Numbering ntawm cov hniav nyob rau hauv kev kho hniav

Tsuas yog thaum xub thawj siab ib muag zoo li zoo li tib neeg cov hniav nyob rau hauv ib leeg. Nyob rau hauv qhov tseeb, txhua tus ntawm cov hniav muaj ib tug neeg configuration, uas yog tsim nyob rau ntau txhiab xyoo, thiab cov uas tob sau raws nkaus Ii lub tua ntawm tej kev khiav dej num. Nws piav txog qhov sib txawv qauv ntawm tib neeg cov hniav yog lawv lub hom phiaj: ib co hniav peb tom tawm cov zaub mov (incisors thiab canines), lwm leej lwm tus peb zom nws (zom hniav). Thiab cov hniav yuav tsum mob, thiab thaum peb tuaj mus rau tus kws kho hniav, ces ib tug ntev thiab ruam tag piav li cas ib tug hniav yuav tsum tau kev kho mob, ib tug kws kho hniav nws pom "cov neeg muaj mob" los ntawm tapping ib tug iav ntawm tag nrho cov hniav nyob rau hauv ib tug kab: uas hniav tus neeg mob yog muab ib tug quaj, thiab txoj cai.

Txawm li cas los, ib tug kev kho hniav kws kho mob yuav alleviate cov plight ntawm no tis npe cov mob tej hniav. Tom qab tag nrho, muaj tseeb koj twb tau hnov txhua lwm yam kws kho hniav yog hu ua "rau", "yim", thiab lwm yam tej cov hniav numbering saws nyob rau hauv kev kho hniav tshuaj. Lawv countdown sau los ntawm nruab nrab ntawm tus hniav kab mus rau sab laug thiab mus rau sab xis. Piv txwv li, lub cutters yog hu ua thawj thiab thib ob pem hauv ntej, los yog pem hauv ntej cov hniav nyob rau ntawm ob lub puab tsaig. Lawv zoo yog tiaj tus, txaug, uas tom los ntawm ib tug loj daim ntawm cov tej daim me me ntawm cov khoom noj tsis muaj teeb meem. Rau tib lub hom phiaj thiab yog lub khob hliav qab-zoo li tus hniav - lub "troika". Nrog lawv pab, koj yuav rhuav tawm thiab txawm tom tawm ntau tuab daim.

Cov nuj nqi ntawm qhov seem uas cov hniav - zom zaub mov, piv txwv li sib tsoo nws mus rau ib lub xeev paaj rau tej digestive txheej txheem. Raws li txhua hniav muaj ib txog kev ua, thiab nws yuav muab xam rau ntawm lawv ib feem ntawm lub load, ces thaum tshem cov load nws nqa, coj tawm cov seem cov hniav. Qhov no yuav ua rau lawv deformation. Kom tsis txhob no, koj yuav tsum sai li sai tau los hloov lub rho hniav prosthesis.

Tiam sis rov qab mus rau lub npe. Lub numbering ntawm tib neeg cov hniav proceeds raws li nram no: "Quartet" thiab "tsib" xa mus rau me me zom hniav los yog premolars. Loj zom hniav, los yog hniav puas - ib tug "rau", "Xya" thiab "yim". Sixth hniav yog tsi ntawm nres rau ntawm lub kaw lub puab tsaig so tiv thaiv txhua lwm yam. Lub nto ntawm lub posterior hniav yog tsis du, nyob rau nws muaj pob, protrusions. Nyob rau hauv premolars ntawm ob tubercles, thaum lub sij hawm hniav puas - 4-5. Lub xub ntiag ntawm cov protrusions pab maximize cov hauj lwm zoo ntawm kev zom khoom noj khoom haus.

Txawm li cas los, numbering ntawm cov hniav nyob rau hauv kev kho hniav yuav kuj lub division rau hauv feem ntawm lub dentition. Tag nrho plaub ntawm lawv, yog li tsis txhob ceeb yog tias koj mam li nco dheev pom tias koj muaj ib tug mob hniav tsis yog lub thib rau thiab plaub caug-rau, nyob rau hauv kev phem ntawm lub fact tias, raws, lawv muaj 32. Raws li hais saum toj no, lub numbering ntawm cov hniav hnub rov qab mus rau qhov chaw , diverging nyob rau hauv txawv kev qhia. Txhua yam ntawm cov sab yog lub ya thiab rau sab saum toj txoj cai - yog "kaum", lub Upper rau sab laug - yog "nees nkaum" sab laug - "peb caug" thiab sab - "sorokovke". Yog li ntawd, piv txwv li, thawj zaug thiab zaum ob sab xis hniav, nyob rau hauv qhov tseeb, yog 11 m thiab 12 m, thiab lub thib tsib thiab thib rau sab laug - 35 thiab 36.

Cov neeg uas muaj ib tug "teeb meem" kev txawj ntse hniav, tej zaum paub hais tias nws yog "Group Yim", tab sis cov numbering ntawm cov hniav qhia tau hais tias lawv tiag tiag tooj nws tau txais raws li qhov kev txiav txim nyob rau hauv uas ya nws sprouted. Nyob rau hauv lwm yam lus, txawj ntse hniav suav 18, 28, 38 thiab 48. Ib tug "ob", "triplets", thiab lwm yam, yog hu ua cov hniav, es kom yooj yim. Yog li ntawd hais lus, "diminutive npe".

Thiab ntawm no nyob rau cov me nyuam cov hniav numbering ntau steeper tshaj nyob rau hauv cov neeg laus. Qhov tseeb hais tias cov keeb kwm ntawm deciduous hniav teem dav sib nrug, uas lawv them rau cov kab ntawm lawm yav tom ntej cov hniav. Yog hais tias x-rays, cov pib yog pom. Raws li mus tas li cov hniav muaj numbered los "dozens" mus rau "sorokovok 'mis nyuj tau hais tias yuav raws li nram no: sab saum toj txoj cai - ib tug" fifties ", lub Upper rau sab laug -" shestidesyatki ", rau sab laug -" semidesyatki ", txo txoj cai -" vosmidesyatki ". Nws yog ib qho tseem ceeb yuav tau nco ntsoov tias yog hais tias ib tug me nyuam tau raug mob mis nyuj hniav, lawv yuav tsum twv yuav raug hu tsum tau kho, txawm lub fact tias lawv yog cov ces tseem poob tawm, vim hais tias txhua yam uas tshwm sim nrog rau cov thawj cov hniav yog ib tug heev muaj zog cawv rau cov kev loj hlob ntxiv ntawm mus tas li.