Los ntawm thawj thawj cov mis nyuj, tus menyuam yuav tsum tau qhia kom txhuam nws cov hniav. Kev saib xyuas lawv txoj kev noj qab haus huv yog nyob ntawm niam txiv ntawm tus menyuam nkaus xwb. Thaum xub thawj, nws muaj peev xwm ua tau yam tsis siv tshuaj txhuam hniav, nws txaus los so cov hniav uas tshwm sim ob peb zaug hauv ib hnub nrog tus txhuam tshwj xeeb rau menyuam.
Thawj cov hniav - thawj muab tshuaj txhuam
"Txij li ntawm rau lub hlis txog peb xyoos" - qhov no yuav tsum muaj qhov cim rau thawj hniav tshuaj txhuam hniav hauv menyuam yaus lub neej. Tsis tas li ntawd, nws yog ib qho tseem ceeb kom ua qhov no nrog tus menyuam txhuam hniav tshwj xeeb. Nws yuav tsum muaj lub ntsej muag muag muag tshwj xeeb thiab tso cai rau tus menyuam, thaum nws paub ua qhov no, tsis tsuas yog txhuam nws cov hniav, tab sis kuj tseem yuav txhuam nws cov pos hniav thiab. Yog lawm, tus menyuam yuav tsum hloov tus txhuam hniav tsis tu ncua: ib hlis ib zaug lossis ib hlis ib hlis thiab ib nrab hnub. Qhov no, niam txiv tuaj yeem tiv thaiv menyuam cov hniav los ntawm kev kis tus kab mob.
Txij li hnub nyoog ob xyoos, raws li txoj cai, tus menyuam pib txhuam nws cov hniav nws tus kheej, txij lub sijhawm ntawd nws tau siv tus txhuam hniav ntau dua, thiab cov tshuaj txhuam hniav "txij li ob txog kaum ob" tshwm sim hauv nws lub neej. Cov qeb hnub nyoog tau kwv yees kwv yees, txij li tom qab rau xyoo nws raug nquahu kom hloov mus rau cov tshuaj txhuam hniav neeg laus. Thaum tus niam txiv paub tseeb tias tus me nyuam muaj peev xwm txhuam nws cov hniav tsis yog nqos tau cov tshuaj txhuam hniav, nws yuav tsum tau qhia los txhuam nws cov hniav zoo li tus neeg laus. Nws cov tshuaj txhuam tshiab yuav tsum muaj cov tshuaj fluoride zoo tshaj plaws. Cov tshuaj fluoride tsis ntxiv rau cov menyuam yaus txhuam hniav. Lawv tsis muaj qhov feem pua ntawm cov abrasives thiab tshuaj ntxiv rau tshuaj.
Yog li, menyuam cov tshuaj txhuam hniav yuav tsum tau siv kom txog thaum niam txiv paub tseeb tias tus me nyuam tsis tuaj yeem nqos nws. Nws raug nquahu kom hloov mus rau tus neeg laus muab tshuaj txhuam ntawm 6-7 xyoo, txij li tsuas yog ib daim ntawv lo uas muaj txhua qhov tsim nyog microelements tuaj yeem muab kev tiv thaiv tag nrho rau cov menyuam yaus cov hniav tshiab.
Txawm li cas los xij, txhawm rau kom ua tiav txoj kev tu koj tus menyuam cov hniav, nws tsim nyog sab laj tus kws kho hniav menyuam yaus. Feem ntau, sai li sai tau ntawm cov hniav tshwm sim, niam txiv yuav tsum kawm paub zoo heev txoj kev mus rau tus kws kho hniav. Txoj kev kho hniav kab noj yog qhov nyuaj tshaj li tswj kev kho hniav.
Ib me ntsis ntxiv txog txhuam thiab pastes
Muaj qee qhov kev nkag siab hauv qhov tseeb tias cov kws kho hniav pom zoo kom cov tshuaj txhuam hniav tshwj xeeb rau menyuam yaus. Txij li tus txha hniav laus ntawm lawv cov hniav loj hlob zoo nrog lub hnub nyoog, cov menyuam yaus maj mam hloov mus rau cov zaub mov tawv, yog li, tau ze dua thiab ze rau cov laus. Qhov no muaj feem xyuam nrog kev hloov pauv ntawm kev ntxuav hniav, hauv tus qauv ntawm txhuam hniav, thiab nyob rau hauv muaj pes tsawg leeg ntawm cov tshuaj txhuam. Tab sis qhov txawv ntawm cov menyuam yaus txhuam hniav thiab tus neeg laus yog qhov tsis muaj teeb meem yog tias nqos tau.
Yog lawm, cov menyuam yaus txhuam hniav nws qab qab zoo, dua li ntawd, nws yog txhob txwm ua kom tus menyuam tsis txhob txhuam nws cov hniav, tab sis tib lub sijhawm nws yuav nqos nws ntau ntxiv.
Txog thaum muaj ob xyoos, cov menyuam yaus feem ntau tsis txhuam lawv cov hniav, tshwj tsis yog siv txhuam tshwj xeeb kev kawm, uas yog cov kws kho mob pom zoo. Cov txhuam kev cob qhia no tso cai rau koj tsis tsuas yog saib xyuas koj cov hniav, tab sis kuj tseem yuav khawb ntawm cov pos hniav, txhawb lawv.
