Ntawm txoj kev xav ntawm chaw ua haujlwm kho hniav, muaj ntau tus tseem tshee thiab txhawj xeeb. Qhov zoo ces, cov chaw kho hniav tshiab ntawm cov cim tshiab yog qhov sib txawv ntawm lub xeev cov tsev kho mob ntawm peb cov menyuam yaus. Yog tias koj tuaj kho rau cov hniav, tus kws kho mob yuav tsis mob siab rau cov txheej txheem txhua lub sijhawm thiab koj tuaj yeem kho lub suab seev lossis saib TV. Koj yuav tau nug ua ntej los sib tham txog qhov kev foob kom muab tso rau. Niaj hnub no koj tuaj yeem xaiv cov kev kho hniav kom tsis txhob muaj kab ntsig thiab hnab nyiaj.
Dab tsi yog lub cim?
Muaj ntau hom kab hniav sib txawv, nyob hauv txhua lub tsev kho mob koj tuaj yeem xaiv qhov kev xaiv uas haum koj:
- Fillings ntawm silicate cements. Cov ntsaws ruaj ruaj no yog qhov pheej yig tshaj plaws. Lawv muaj lub zog tsis tshua muaj zog, yog cov tshuaj lom. Tab sis muaj cov ntsaws ruaj ruaj thiab ntau cov kev ua tau zoo: ib qho kev sib zog ua kom yooj yim rau cov tawv nqaij ntawm cov kaus hniav, lub caij nyoog tso tawm cov tshuaj fluoride.
- Nws yog xim hlau. Dab tsi yog qhov zoo ntawm cov hom filling: lawv tuaj yeem kav ntev lawm, lawv yuav siv cov zom zawg. Qhov kev nyab xeeb yog qhov kev foob tuaj yeem hloov xim ntawm tus hniav lossis ua rau ib qho kev tawg ntawm phab ntsa. Qhov teeb meem loj tshaj plaws ntawm qhov foob no yog tso tawm cov mercury vapor.
- Composites. Cia kom rov kho dua ntawm tus hniav ntawm theem siab tshaj. Khoom siv rau kev sib tsuam ntawm hom kab no yog siv rau txheej, txhua txheej yog polymerized los ntawm ib lub teeb tshwj xeeb. Qhov kev pabcuam lub neej ntawm hom kabmob hniav no yog 5 xyoo, tus nqi yog nyob ntawm cov khoom siv uas siv.
- Yuav kom tshem tawm cov teeb meem loj hauv cov hniav, cov kws kho mob siv cov tabs tshwj xeeb . Ib qho ntxig yog qhov ua ntej kev sib tw uas tus kws kho hniav tau muab pov tseg rau hauv cov hniav. Cov tabs no yog tsim los ntawm ceramics, uas tso cai rau koj xaiv cov xim uas zoo tshaj plaws rau cov xim ntawm tus hniav txha hniav.