Nws yog ib yam uas to taub hais tias cov hniav dawb yog tsim nyog. Lwm tus yog kom paub lub tswv yim. Koj muaj hmoo yog tias qhov xwm tau zoo nrog koj cov hniav dawb zoo nkauj. Thiab yog tias tsis? Qhov no tsis yog ib txwm ua dav dav xwb. Thiab muaj hmoo neeg muaj peev xwm poob lawv qhov chaw dawb nrog lub sijhawm. Tshwj xeeb tshaj yog nyob rau hauv lub ntiaj teb niaj hnub, ntau yam tseem ceeb uas cuam tshuam rau xim ntawm cov hniav. Khoom noj khoom haus, dej haus, haus luam yeeb, tshuaj thiab tshuaj pleev ib ce muaj zog nrog ntau yam dyes. Lawv ua rau muaj kev txawv txav hauv cov xim ntawm cov hniav, qhov sib txawv me ntsis.
Npau suav ntawm muaj dazzling Hollywood luag yog shattered txog kev muaj tiag. Tsis yog txhua tus tuaj yeem saib xyuas tus kws kho hniav tsis tu ncua. Ib qho kev ntsuas nyob rau hauv daim ntawv ntawm cov hniav ntxuav hniav dawb tsis txaus - tshaj li lub sij hawm, whiteness ploj mus.
Ib txoj kev saib xyuas kom yog tsis txaus. Dab tsi yog qhov tsuas yog xim kasfes thiab tshuaj yej, siv yeeb siv tshuaj thiab nicotine! Thiab sim, tsis muaj kev pabcuam ntawm tus kws kho hniav, kom tshem tau cov zaub mov tsawg tshaj plaws ntawm cov zaub mov hauv cov kab nrib pleb lossis cov kis ntawm cov hniav.
Koj puas tau nyeem lo lus "tshuaj dawb" rau cov tshuaj txhuam hniav? Nws yeej tiv nrog me me tshiab pob. Tshaj cov laus yuav tau hle zoo nkauj zoo.
Koj puas tau txiav txim siab ua kom muaj suab nrov hauv tsev? Zoo, koj yuav txuag tau nyiaj. Tsuas xyuas koj tus kws kho hniav ua ntej rau kev pab tswv yim. Cov hniav yog ib yam khoom zoo thiab tsis muaj zog. Thiab tsis xav tias yuav muaj txiaj ntsim zoo li cas los ntawm kev ntxuav tsev. Nws yog qhov tsim nyog ntxiv rau kev ntxiv dag zog rau cov hniav thiab ua kom lawv zoo me ntsis.
Kev ntxuav hniav dawb, raws li txoj cai, tsis muab ib qho pom tshwm sim. Tshwj xeeb yog hais tias tus muab tshuaj yog pheej yig. Ntawm cov hoob kawm, qhov txuam me me ntawm cov khoom ntxhib ntxaum me ntsis ua kom cov hniav sib zog, tab sis nws zoo dua yog siv cov pastes kom muaj lub suab ntawm cov hniav tom qab lawv tu.
Ib txhia sim ua kom lawv cov hniav tawg nrog cov zom zom plev. Nrog xws li ib tug tsawg concentration ntawm tshuaj dawb tshuaj nyob rau hauv lawv, muaj tsis yog tej yam kev cia siab rau lub radiance ntawm snow-dawb cov hniav.
Tsis yog txoj hau kev zoo uas koj muaj peev xwm pleev koj cov hniav tom tsev - siv cov tshuaj dawb tso nrog cov tshuaj dawb tso kua. Koj yuav tsum mus rau qhov chaw kho mob, uas koj yuav ua tus neeg kappa, uas yog, ib daim ntawv tshwj xeeb uas npog koj cov hniav ntawm tag nrho cov sab. Ib qho tshuaj dawb tuaj tso rau hauv daim ntawv thiab muab tso rau ntawm cov hniav. Lub phaj yuav tsum tau hnav rau ob peb xuab moos txhua hnub los yog hnav pw ib ntus ob peb lub lis piam. Nws yog zoo dua tsis siv lub txheem kappa. Nws yog ib qho yuav tau txais ib qho tshuaj lom neeg los ntawm cov kua nplaum (whitening gel). Tsis txhob hnav daim phaj ntev tshaj li lub sijhawm pom zoo. Koj txoj kev mob siab yuav tig mus rau hauv cov kis hniav uas muaj ntau tshaj nrog ib tug npub, ntxeem tau, petty qauv. Qhov no enamel yog nyuaj rau rov qab mus rau nws qub qub.
Cov ntaub ntawv ntawm cov khoom siv hauv tsev ntxuav hniav dawb yog baking soda. Nws qhov zoo yog muaj kev ruaj ntseg rau kev noj qab haus huv ntawm tag nrho cov kab mob hauv feem ntau thiab nyob rau hauv kev ceev ntawm kev ua. Nrog kev nyuaj, nqa cov dej qab ntsev soda, ces muab sib tov nrog tshuaj txhuam hniav. Tsuas ceev faj xwb! Ntxuav nws cov hniav ntau zaus dua li ib hlis ib zaug txawm tias phom sij. Txoj hlab ntsha sai sai thim tawm vim qhov kev kho hniav sab saum toj yog ripped tawm los ntawm cov dej qab zib, thiab cov hniav ua rau sov, txias thiab ntsim noj zaub mov.
Ntawm cov pheej yig thiab yeej muaj kev txhais tau cov hniav ntxuav hniav dawb hauv tsev, tseem muaj hydrogen peroxide. Nws siv tau nrog kev kub nyhiab thiab tsis kaj siab nyob rau hauv cov pos hniav. Tab sis qhov tshwm sim yuav yog dawb cov hniav. Hais txog txham, qhov tseeb, nws yog ib qhov tsim nyog yuav tau hnov qab. Thiab muab nws nqos thaum uas yaug nws tseem tsis tsim nyog nws, txawm tias tau txais cov tshuaj hydrogen peroxide rau hauv lub qhov ncauj tsis muaj mob. Peroxide yuav siv tom qab txhua tus hniav txhuam nrog tshuaj txhuam hniav. Nws tuaj yeem nqa ntawm cov hniav nrog paj rwb los yaug koj lub qhov ncauj ib feeb. Cov nyhuv yog pom tom qab ob peb lub lim tiam.