Cov txheej txheem:
Video: Cov txheej txheej ntawm cov hniav puas rhiab?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2024-01-18 09:28
Cov qauv & kev ua haujlwm ntawm cov hniav
- Txha hniav laus Cov txheej sab nraud nyuaj ntawm yas .
- Dentine Tsis nyuaj npaum li txha hniav laus , tsim ntau cov hniav thiab tuaj yeem nkag siab tau yog tias kev tiv thaiv ntawm txha hniav laus yog ploj lawm.
- Pulp Cov nqaij mos uas muaj cov ntshav thiab paj hlwb muab rau cov hniav.
- Cementum Cov txheej ntawm cov pob txha zoo li ntaub so ntswg npog hauv paus .
- Cov txheej txheem nyob ib ncig ntawm tus hniav.
Tom qab ntawd, ib tug kuj yuav nug, puas cov hniav rhiab heev rau txias txhais tau hais tias kab noj hniav?
Yog ib hniav yog heev rhiab heev rau ntau dua peb lossis plaub hnub thiab ua rau ob qho kub thiab txias kub, nws yog qhov zoo tshaj los nug koj tus kws kho hniav kom ze. Qee zaum rhiab heev tej zaum yuav yog ib tug kos npe rau ntawm ib kab noj hniav los yog kis tau hniav pulp.
Tsis tas li, dab tsi ua rau cov hniav rhiab sai sai? Ua ntawm hniav rhiab heev . "Cov kab noj hniav, tawg cov hniav , cov pos hniav ploj, txha hniav laus thiab hauv paus yaig tag nrho vim dentin kom raug, "Culotta-Norton hais." Dentin txuas nrog cov hlab ntsha uas ua rau mob rhiab hniav ."
Ib sab ntawm no, uas yog peb txheej ntawm cov hniav?
Cov hniav yog tsim los ntawm peb txheej:
- LUB ENAMEL. Cov hniav txha hniav laus yog qhov pom, txheej txheej ntawm cov hniav.
- LUB DENTIN. Lub dentin yog txheej thib ob lossis nruab nrab ntawm cov hniav, txheej ncaj qha rau hauv qab cov enamel.
- LUB PULP. Cov mis nyuj yog txheej nruab nrab ntawm cov hniav.
Ib feem ntawm cov hniav nyuaj npaum li pob txha?
Dentin. Dentin, tseem sau ua dentine, hauv lub cev, cov ntaub so ntswg daj uas ua rau txhua qhov ntau cov hniav . Nws yog nyuab dua pob txha tab sis softer tshaj enamel thiab muaj feem ntau ntawm apatite crystals ntawm calcium thiab phosphate.
Pom zoo:
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