Koj puas paub tej no txog koj cov hniav? (Cov hniav) Cia peb tham!

Koj puas tau xav txog seb peb cov hniav yog dab tsi thiab lawv tseem ceeb npaum li cas? Cov hniav yog qhov tseem ceeb rau kev zom cov khoom noj uas peb noj. Hais yooj yim xwb, peb cov hniav yog cov uas rhuav cov khoom noj ua tej daim me me, tsoo nws, thiab ua rau nws yooj yim dua rau nqos. Yog li hnub no, peb puas yuav tham ntxiv txog cov hniav no?

Peb muaj pes tsawg tus hniav?

Feem ntau ib tug neeg laus muaj 32 tus hniav tas mus li. Txawm li cas los xij, tsis yog txhua tus neeg muaj lawv. Ib txhia neeg yug los nrog tsawg dua cov hniav, uas hu ua hypodontia hauv cov lus kho mob. Lwm tus muaj ntau cov hniav dua li lawv yuav tsum tau, uas hu ua hyperdontia .

Thaum peb tseem me, uas yog, feem ntau txij li 4 lub hlis mus txog 6 xyoo, peb cov hniav menyuam, puas yog? Cov hniav menyuam ntawd yog peb cov phooj ywg thaum yau. Feem ntau muaj li ntawm 20 ntawm lawv. Tom qab ib pliag, cov hniav menyuam no poob tawm, thiab peb cov hniav tas mus li pib tuaj rau hauv cov chaw ntawd. Yog li cov hniav menyuam tsis yog ob peb tug hniav uas poob tawm xwb, tab sis yog ib feem tseem ceeb uas ua rau muaj cov hniav tas mus li.

Plaub hom hniav! Lawv yog dab tsi?

Tsis yog txhua tus hniav hauv peb lub qhov ncauj zoo ib yam. Txhua tus hniav muaj nws txoj haujlwm tshwj xeeb. Peb feem ntau muaj plaub hom hniav. Cia peb saib seb lawv yog dab tsi:

• Cov hniav txiav
• Cov dev
• Cov hniav premolars
• Cov hniav puas

Cia peb kawm txog cov hniav incisors.

Cov hniav pem hauv ntej hauv koj lub qhov ncauj, cov uas tshwm sim thaum koj luag ntxhi, hu ua incisors . Feem ntau cov neeg muaj plaub rau sab saum toj thiab plaub rau hauv qab. Cov no yog koj ob lub hniav pem hauv ntej thiab cov hniav nyob rau ob sab ntawm lawv. Vim yog cov npoo ntse ntawm cov hniav no, thaum koj pib zom ib daim khoom noj, cov hniav no pab koj zom nws. Xav txog tias thaum koj noj ib lub txiv apple, cov no yog thawj cov hniav uas koj zom, puas yog?

Cov dev yog dab tsi?

Cov hniav dev no hu ua "cov hniav dev" vim lawv zoo li dev. Piv rau lwm hom hniav, lawv ntse dua me ntsis. Cov neeg feem coob muaj plaub tus hniav dev - ib qho nyob rau sab xis saum toj, ib qho nyob rau sab laug saum toj, ib qho nyob rau sab xis hauv qab, thiab ib qho nyob rau sab laug hauv qab.

Cov hniav no pab peb zom cov khoom tawv xws li nqaij, lossis cov zaub qhwv xws li carrots. Ib txhia neeg kuj hu cov no ua "cov hniav qhov muag" vim tias cov hniav no nyob hauv qab peb lub qhov muag.

Ua li cas rau cov premolars?

Cov hniav no kuj hu ua "Bicuspids." Cov premolars nyob nruab nrab ntawm koj cov canines thiab cov molars, uas nyob tob hauv koj lub qhov ncauj.

Cov hniav premolars muaj qee yam ntxwv zoo li ob qho tib si incisors thiab molars. Cov hniav no pab rhuav, zuaj, thiab zom zaub mov.

Cov hniav puas yog cov neeg ua haujlwm loj tshaj plaws!

Koj cov hniav puasCov no yog cov hniav loj hauv lub qhov ncauj. Kwv yees li 90% ntawm cov khoom noj uas peb noj yog cov hniav no zom thiab zom. Xav txog seb nws yog ib txoj haujlwm loj npaum li cas! Ib tug neeg laus feem ntau muaj 12 lub hniav puas - peb lub rau txhua sab (sab xis saum toj, sab laug saum toj, sab xis hauv qab, sab laug hauv qab).

Cov hniav txawj ntse no kuj yog ib feem ntawm cov hniav hu ua cov hniav txawj ntse kawg (lossis 'cov hniav molars thib peb') . Yog li ntawd, yog tias koj tau muab koj cov '(cov hniav txawj ntse)' tshem tawm, lossis yog tias koj yug los tsis muaj lawv, koj yuav muaj txog li 8 cov hniav txawj ntse.

Cov hniav no yog cov uas ua rau cov zaub mov zom thiab zom tau zoo, ua rau nws yooj yim dua rau nqos.

Tag nrho cov hniav ua haujlwm ua ke li cas?

Tag nrho cov hniav no hauv peb lub qhov ncauj ua haujlwm ua ke zoo li ib pab pawg. Thaum peb muab ib daim khoom noj rau hauv peb lub qhov ncauj, tag nrho cov hniav no pab kom tawg, rhuav, tsoo, thiab zom nws. Tom qab ntawd, peb tus nplaig thiab sab saud ntawm peb lub caj pas (Oropharynx) ua haujlwm ua ke los tsim cov khoom noj no ua ib lub pob me me, ua rau nws yooj yim dua rau nqos.

Sab hauv ntawm ib tug hniav zoo li cas? (Anatomy ntawm ib tug hniav)

Thaum koj rho ib tug hniav, muaj ntau yam tseem ceeb sab hauv, tsis yog tsuas yog qhov pom xwb. Muaj ob feem tseem ceeb ntawm ib tug hniav:

• Lub kaus hniav : Qhov no yog ib feem ntawm cov hniav uas koj pom tau. Qhov ntawd yog, ib feem saum cov pos hniav. Qhov no yog npog nrog ib txheej tiv thaiv uas muaj zog heev hu ua enamel . Cov enamel no yog qhov uas tiv thaiv peb cov hniav ntawm kev khawb thiab kev cuam tshuam.
• Cov hauv paus hniav : Qhov no yog ib feem ntawm cov hniav uas tau khi rau hauv lub puab tsaig. Koj tsis pom nws vim nws tau npog los ntawm cov pos hniav. Cov hauv paus hniav yog qhov uas tuav cov hniav kom ruaj khov, khi nws rau lub puab tsaig, los ntawm cov ntaub so ntswg mos mos hu ua periodontal ligament .

Cov hniav ua los ntawm dab tsi?

Koj cov hniav muaj plaub txheej tseem ceeb, txhua txheej muaj nws txoj haujlwm tshwj xeeb.

• Cov txheej txha hniav : Qhov no yog txheej tiv thaiv sab nraud tshaj plaws thiab muaj zog tshaj plaws ntawm cov hniav. Nws ua haujlwm zoo heev los tiv thaiv cov hniav ntawm cov kab mob uas ua rau cov hniav lwj. Koj puas paub, cov txheej txha hniav yog cov khoom muaj zog tshaj plaws hauv tib neeg lub cev! Tab sis thaum nws puas lawm, nws tsis tshua rov tsim dua.
• Dentin : Cov txheej hniav no nyob hauv qab cov enamel. Dentin tsis muaj zog npaum li cov enamel. Yog tias cov enamel lwj thiab cov dentin raug nthuav tawm, cov hniav yuav lwj ntau dua. Thaum ntawd cov hniav yuav loog.
• Cementum : Qhov no yog ib feem ntawm cov hniav hu ua cementum uas nyob ib puag ncig cov hauv paus hniav. Qhov no, nrog rau lwm cov nqaij uas nyob ib puag ncig cov hniav, pab txhawb kom cov hniav nyob rau ntawm lub puab tsaig.
• Cov hniav hauv paus : Qhov no yog txheej sab hauv tshaj plaws ntawm cov hniav, zoo li lub plawv. Nws muaj cov hlab ntsha, cov hlab ntsha, thiab cov nqaij sib txuas . Qhov no yog qhov uas muab lub neej thiab kev xav rau cov hniav.

Cov hniav puas yog ib hom pob txha?

Muaj coob tus neeg xav tias cov hniav yog ib hom pob txha. Tiam sis qhov tseeb tsis yog li ntawd. Txawm hais tias cov hniav zoo li cov pob txha, lawv cov qauv thiab kev ua haujlwm txawv heev.

Yog tias cov pob txha tawg lawm, lawv tuaj yeem rov qab tsim tau. Tab sis yog tias ib tug hniav tawg lossis tawg lawm, nws yuav tsis rov qab tsim tau nws tus kheej. Tsis tas li ntawd, cov hniav tsis muaj cov pob txha zoo li cov pob txha.

Cov hniav yeej yog ib pawg ntawm cov kabmob tshwj xeeb hu ua "ectodermal organs." Koj cov plaub hau, daim tawv nqaij, thiab cov qog hws kuj yog ib pawg ntawm pawg no. Qhov ntawd puas zoo kawg nkaus?

Puas muaj ib txoj kev los suav cov hniav?

Yog, cov kws kho hniav thiab cov neeg ua haujlwm kho mob siv cov txheej txheem suav lej tshwj xeeb los txheeb xyuas cov hniav thiab khaws cov ntaub ntawv ntawm lawv. Txawm hais tias muaj ntau yam txheej txheem, feem ntau siv hauv cov tebchaws zoo li Tebchaws Meskas yog Universal Numbering System .

Raws li lub kaw lus no, cov hniav laus raug suav txij li 1 txog 32. Nws pib nrog cov hniav molar thib peb (cov hniav txawj ntse) nyob rau sab hauv sab xis ntawm lub puab tsaig sab saud. Los ntawm qhov ntawd, ob lub hniav pem hauv ntej raug suav mus rau sab laug. Tom qab suav cov hniav kawg ntawm sab laug sab saud (`#16`), cov hniav raug suav mus rau lub puab tsaig qis, pib dua nrog cov hniav kawg ntawm sab laug qis (`#17`), thiab suav mus rau sab xis, xaus nrog cov hniav kawg ntawm sab xis qis (`#32`).

Txawm tias koj plam ib tug hniav los xij, cov kws kho mob yuav muab ib tus lej rau tus hniav ntawd los tsim koj daim ntawv qhia txog hniav.

Ib lub tshuab zoo sib xws siv rau cov hniav me me ntawm cov menyuam yaus, tab sis hloov cov lej, siv cov tsiaj ntawv Askiv (A txog T). Qhov no zoo li daim ntawv qhia uas ua rau nws yooj yim dua rau cov kws kho mob khaws cov ntaub ntawv ntawm koj cov hniav.

Cov mob dab tsi uas feem ntau cuam tshuam rau peb cov hniav?

Cov hniav yog ib qho teeb meem uas feem ntau tshwm sim. Cov hniav lwj yog qhov feem ntau thiab feem ntau tshwm sim ntawm cov no. Qhov tseeb, kwv yees tias ntau dua 90% ntawm cov neeg laus hauv Tebchaws Meskas uas muaj hnub nyoog tshaj 40 xyoo muaj tsawg kawg ib lub hniav lwj. Cov hniav lwj tshwm sim thaum cov hniav enamel raug cov kab mob ua rau lwj. Thaum cov dentin hauv qab cov hniav enamel raug nthuav tawm, cov kab mob noj cov hniav ntau dua.

Lwm yam teeb meem hniav uas feem ntau muaj xws li:

• Kev Sib Tsoo Hniav (Bruxism) : Kev sib tsoo koj cov hniav ua ke, txawm tias koj pw tsaug zog lossis thaum nruab hnub, tuaj yeem ua rau cov enamel lwj, ua rau koj cov hniav puas, thiab ua rau mob.
• Cov hniav rhiab : Koj cov hniav puas loog thaum koj haus dej txias, noj ib daim ice cream, lossis haus tshuaj yej kub? Qhov no feem ntau tshwm sim thaum cov enamel tau hnav tawm lossis cov hauv paus hniav raug nthuav tawm.
• Kev raug mob rau koj lub qhov ncauj : Tej yam xws li kev sib tsoo tsheb, kev raug mob kis las, thiab kev poob tuaj yeem ua rau cov hniav tawg, tawg, lossis poob tag nrho.
• Cov hniav tsis muaj ximXim ntawm koj cov hniav tuaj yeem hloov pauv raws sijhawm thaum koj haus cov khoom xws li tshuaj yej, kas fes, thiab qee yam txiv hmab txiv ntoo. Tsis tas li ntawd, kev siv qee yam tshuaj kuj tuaj yeem ua rau cov hniav hloov xim.
• Cov hniav raug mob : Qee zaum, cov hniav tuaj yeem lo rau hauv cov pos hniav lossis pob txha puab tsaig, ua rau lawv tsis tuaj yeem tawm los zoo. Piv txwv zoo tshaj plaws ntawm qhov no yog cov hniav txawj ntse raug mob. Txawm li cas los xij, qhov no tuaj yeem tshwm sim rau txhua tus hniav.
• Kev kho hniav tsis sib luag : Qhov no suav nrog cov hniav nkhaus, qhov sib txawv loj ntawm cov hniav, cov hniav sib sau ua ke, thiab cov hniav nkhaus. Cov no tuaj yeem cuam tshuam rau kev noj qab haus huv ntawm qhov ncauj thiab kev zom khoom.
• Hniav tawg : Qee zaum cov kab mob tuaj yeem nkag mus rau hauv cov hniav. Thaum qhov no tshwm sim, cov kab mob tuaj yeem tsim, ua rau mob hnyav.
• Kab mob ntawm cov pos hniav : Txawm hais tias kab mob ntawm cov pos hniav pib hauv cov pos hniav los xij, yog tias tsis kho kom zoo, nws tuaj yeem ua rau mob hnyav, ua rau cov hniav xoob thiab thaum kawg poob hniav.

Cov tsos mob ntawm cov teeb meem hniav yog dab tsi?

Thaum muaj teeb meem nrog peb cov hniav, peb yuav muaj ntau yam tsos mob. Qee qhov ntawm cov no suav nrog:

• Mob hniav
• Cov hniav tsis xis nyob rau cov khoom noj txias, kub, thiab qab zib
• Mob thaum zom zaub mov
• Cov pos hniav o, los ntshav
• Lub puab tsaig o

Yog koj xav li no, zoo tshaj mus ntsib kws kho hniav sai li sai tau.

Cov kev kho mob hniav uas feem ntau siv yog dab tsi?

Muaj ntau txoj kev kho hniav. Tus kws kho mob yuav txiav txim siab seb yuav siv txoj kev kho mob twg raws li qhov teeb meem nrog koj cov hniav. Nov yog qee qhov kev kho mob uas feem ntau siv:

• Kev kho hniav
• Cov kaus mom hniav
• Cov choj hniav
• Kev sib txuas hniav
• Kev ua kom hniav dawb
• Cov vuas veneer porcelain
• Cov hniav cuav
• Cov hniav cog rau hauv tsev
• Cov hniav cuav

Kuv yuav ua li cas thiaj li ua kom kuv cov hniav noj qab nyob zoo?

Yuav kom koj cov hniav thiab cov pos hniav noj qab nyob zoo, nws yog ib qho tseem ceeb uas yuav tsum saib xyuas koj qhov ncauj kom huv . Nov yog qee yam yooj yim uas koj ua tau:

• Nws yog ib qho tseem ceeb uas koj yuav tsum mus ntsib koj tus kws kho hniav tsis tu ncua kom tau txais kev kuaj mob thiab ntxuav hniav. Nws yog qhov zoo tshaj plaws mus tsawg kawg ib xyoos ib zaug, lossis txhua 6 lub hlis yog tias ua tau.
• Txhuam koj cov hniav tsawg kawg yog ob zaug hauv ib hnub, rau ob feeb txhua zaus .
• Siv txhuam hniav uas muaj cov plaub mos mos thiab tshuaj txhuam hniav uas muaj fluoride . Tsis txhob txhuam koj cov hniav hnyav heev, vim qhov no yuav ua rau koj cov pos hniav puas.
• Siv xov txhuam hniav ntawm koj cov hniav tsawg kawg ib zaug ib hnub.Qhov no tshem tawm cov khoom noj thiab cov av uas txhuam hniav tsis tuaj yeem tshem tawm.
• Yog tias ua tau, siv cov tshuaj ntxuav qhov ncauj uas tsis muaj cawv thiab muaj tshuaj tua kab mob . Qhov no tuaj yeem pab txo cov kab mob phem hauv koj lub qhov ncauj.

Kuv yuav ua li cas yog tias kuv cov hniav ploj lawm?

Qee zaum, tib neeg yug los muaj qee cov hniav ploj lawm. Lwm tus yuav poob hniav vim yog cov hniav lwj, kab mob ntawm cov pos hniav, lossis raug xwm txheej.

Seb koj puas xav tau ib tug hniav tshiab los hloov ib tug hniav uas ploj lawm nyob ntawm ntau yam, suav nrog qhov chaw ntawm cov hniav uas ploj lawm thiab koj lub hom phiaj rau koj txoj kev noj qab haus huv hauv qhov ncauj.

Niaj hnub nim no, muaj ntau txoj hauv kev los hloov cov hniav uas ploj lawm. Cov hniav cog rau hauv, cov choj hniav, thiab cov hniav cuav yog cov tseem ceeb. Koj tuaj yeem tham nrog koj tus kws kho hniav kom xaiv txoj kev uas haum rau koj tshaj plaws.

Ib tug hniav hnov ​​mob li cas?

Txhua tus hniav muaj cov hlab ntsha thiab cov hlab ntsha hauv nws. Cov no yog cov uas muab kev noj haus rau tus hniav. Thaum muaj ib yam dab tsi zoo li kev kis kab mob tshwm sim hauv cov hniav, cov hlab ntsha no nyob hauv nruab nrab ntawm tus hniav pib mob. Thaum ntawd peb thiaj li mob hniav.

Qhov tseem ceeb tshaj plaws rau koj yuav tsum nco ntsoov (Cov Lus Coj Mus Tsev)

Yog li ntawd, tej zaum koj tam sim no nkag siab tias peb cov hniav muaj nqis thiab tseem ceeb npaum li cas. Lawv yog ib feem tseem ceeb ntawm lub cev zom zaub mov. Nws yog cov hniav no uas pab peb zom, zom, thiab nqos cov khoom noj uas peb noj.

Yog li ntawd, nws yog peb lub luag haujlwm los saib xyuas cov hniav zoo nkauj no kom zoo. Los ntawm kev txhuam koj cov hniav kom zoo, mus ntsib koj tus kws kho hniav raws sijhawm, mloog cov lus qhia, thiab saib xyuas koj txoj kev noj qab haus huv hauv qhov ncauj, koj tuaj yeem muaj lub ntsej muag luag ntxhi zoo nkauj rau tas koj lub neej! Tsis txhob hnov ​​​​qab, cov hniav noj qab haus huv yog lub qhov rooj mus rau lub cev noj qab haus huv.

Cov hniav, kev noj qab haus huv ntawm cov hniav, cov hniav lwj, cov kab mob ntawm cov pos hniav, yuav ua li cas txhuam cov hniav, kws kho hniav, cov hniav menyuam yaus, cov qauv ntawm cov hniav, hom hniav