Cov Hniav Ntxuav Cov Khaub Ncaws - Kev Tshawb Fawb Cov Ntsiab Lus thiab Kev Txawj Ntseg Piav Qhia

Cov hniav ntxuav hniav ntxuav hniav dawb tau dhau los ua qhov kev xaiv nrov rau kev ua tiav qhov sib luag ci ntsa iab, tsis tau qhov kev kawm ua qab haujlwm tseem ceeb dua {{0} {paub. Cov tais no ua haujlwm los ntawm kev tso cov pa roj oxygen kom tawg cov txha hniav laus ntawm cov txha hniav laus, xa cov txiaj ntsig kev nyab xeeb thiab hnov ​​tau.

Cov khoom tseem ceeb thiab cov tshuab
Cov gels siv hauv ntxuav hniav cov khoom feem ntau muaj cov tshuaj ntsuab muaj hydrogen peroxide lossis carbamide peroxide, nrog ntau heev xws li 10% mus rau 40%. Cov kev pab ntau dua (35% -40%) feem ntau yog siv hauv cov kws kho hniav kws kho hniav, thaum txo qis (10%-20% yog tsim nyog rau siv hauv tsev.
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Hydrogen peroxide: ncaj qha decomposes rau hauv dej thiab nquag oxygen, sai sai npuaj nti rau oxidize stain molecules.
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Carbamide peroxide: maj mam tso hydrogen peroxide hauv lub qhov ncauj, muab cov gentler cuam tshuam zoo rau cov hniav rhiab.

Cov kev soj ntsuam cov txiaj ntsig thiab cov kev txwv
Kev tshawb fawb qhia tau tias yuav tsum tau siv tas kev cai Txawm li cas los xij, txiaj ntsig sib txawv:
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Exsinsic stains (piv txwv li, los ntawm kas fes, tshuaj yej): zoo heev.
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Intrinsic stains (piv txwv li, tetracycline discoloration, tshuaj fluorosis): Xav tau kev kho mob ua ke.

Cov kws tshaj lij cov lus pom zoo
American Dental Association (ADA) Npaj sab laj nrog kws kho hniav sab tswv yim ua ntej siv los ua cov kab noj hniav, cov pos hniav, lossis cov hniav tawg. Kev siv dhau yuav ua rau enamel demineralization, nrog kev ntxuav hniav dawb txhua xyoo tsawg rau ob zaug.