Video: Coronal dentin yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Dentin yog cov pob txha zoo li cov qauv uas ntxeem tau thiab cov xim daj hued. Interglobular hniav tshwj xeeb tshaj yog nyob hauv coronal hniav , ze rau ntawm qhov chaw kho hniav dentinoenamel (DEJ), thiab hauv qee qhov kev txawv txav ntawm cov hniav, xws li hauv dentinogenesis imperfecta.
Qhov tseeb, tus hniav yog dab tsi?
Dentin lossis dentine yog txheej txheej ntawm cov khoom uas nyob hauv qab cov hniav txha hniav laus tam sim ntawd. Nws yog ib ntawm plaub yam tseem ceeb ntawm cov hniav uas suav nrog: Cov txheej tawv tawv sab nrauv. Cov hniav hauv qab cov hniav txha hniav laus. Cov tshuaj txhuam hniav uas nyob ntawm qhov muag thiab kaw rau hauv hniav.
Tsis tas li, cov hniav dentin ua los ntawm dab tsi? Dentin yog tawv, lub teeb daj, txheej ntxeem tau ntawm cov nqaij ncaj qha hauv qab cov hniav thiab cementum. Dentin ua qhov loj tshaj plaws ntawm hniav thiab suav nrog kwv yees li 70% cov teeb meem inorganic thiab 30% cov organic teeb meem thiab dej.
Khaws qhov no saib, puas tuaj yeem raug kho hniav puas?
Yog tias hniav yog raug , koj tus kws kho hniav tau npog nws nrog tawv, txha hniav laus zoo li txheej ntawm calcium hydroxide. Tsuav yog cov pulp tseem noj qab nyob zoo, cov hniav tau feem ntau ua tiav tsau nrog cov yas ruaj khov. Yog hais tias lub pulp puas, txawm li cas los xij, kev kho mob nyuaj dua.
Hniav thiab dentin yog dab tsi?
Hniav hniav yog ib ntawm plaub daim ntaub loj uas ua rau hniav hauv tib neeg thiab ntau lwm yam tsiaj, suav nrog qee hom ntses. Nws ua kom pom qhov ib txwm pom ntawm hniav , npog cov yas. Lwm cov ntaub so ntswg loj yog hniav , cementum, thiab kho hniav ua pulp.
Pom zoo:
Dab tsi yog glycoprotein dab tsi yog ib qho ntawm kev siv glycoproteins?
Glycoproteins yog cov protein uas muaj cov oligosaccharide saw (glycans) covalently txuas nrog cov amino acid sab-saw. Glycoproteins kuj tseem yog ib qho tseem ceeb ua ke ntawm cov protein, uas lawv ua lub luag haujlwm hauv kev sib cuam tshuam ntawm tes -cell
Dab tsi yog cov khoom siv hauv lub cev zom zaub mov thiab lawv lub luag haujlwm yog dab tsi?
Cov khoom siv hauv lub cev zom zaub mov suav nrog cov hniav, tus nplaig, cov qog ua kua qaub, daim siab, lub zais zis, thiab txiav txiav. Txhawm rau ua tiav lub hom phiaj ntawm kev muab lub zog thiab khoom noj khoom haus rau lub cev, rau lub luag haujlwm tseem ceeb nyob hauv cov txheej txheem zom zaub mov: nqos. Kev zais
Dab tsi yog qhov kev nkag siab tsis tu ncua thiab dab tsi yog qhov loj me me qhov ntev xim tsis tu ncua zoo li qub)?
Kev nkag siab tsis tu ncua, tseem hu ua qhov tsis sib xws, lossis qhov tshwm sim tsis tu ncua, kev nyiam tsiaj thiab tib neeg kom pom cov khoom paub zoo li muaj tus qauv zoo, qhov loj me, xim, lossis qhov chaw tsis hais txog kev hloov pauv ntawm lub kaum sab xis ntawm kev xav, nrug deb, lossis teeb pom kev zoo
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Dab tsi yog qhov txawv ntawm qhov kev txiav ntawm frontal thiab coronal?
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