Thiab koj muaj daj hniav?

Nws yog tsis muaj daim card uas thaum lub sij hawm tag nrho cov yam nyob ib ncig ntawm peb poob lawv cov thawj ci thiab kev zoo nkauj. Nws kuj siv tau rau peb lub cev zoo li, uas yog vim li cas yog hais tias koj me ntsis txog cov qhov teeb meem no raws li "daj hniav", cov ntaub ntawv no koj yuav yeej tuaj nyob rau hauv muab rau. Yog li ntawd, tsuas yog txoj kev uas yuav tau tshem ntawm daj hniav ntxuav hniav dawb yog. Thiab muaj tsis muaj dab tsi tsis ncaj ncees lawm, vim hais tias tus txheej txheem no yog heev tej yam ntuj tso. Nyob rau hauv tsis muaj cov ntaub ntawv tsis txawm xav tias mus tos yog tias koj muaj daj hniav, vim rau qhov cov tshuab nws yog tsis yog tim koj. Tag nrho cov nyob ntawm tus hniav enamel, uas yog tus tiv thaiv txheej.

Yog li ntawd yog vim li cas daj hniav? Thaum lub sij hawm, tus txha hniav laus pib hnav tam sim ntawd thiab lub puab hniav tshuaj maj emerges outwardly. Qhov no yog lub ntsiab yog vim li cas rau lub tsos ntawm daj quav hniav nyob rau ntawm cov hniav. Tsis tas li ntawd ib tug qab zib hniav yuav tsum to taub hais tias cov khoom qab zib xwb leeb lub havzoov ntawm tus txha hniav laus rau ntawm cov hniav ntawm tus txheej txheem. Txij li thaum los ntawm dissolving qab zib nyob rau hauv ua ke nrog nrog cov kab mob nyob rau hauv koj lub qhov ncauj, tag nrho cov sib tov yog hloov dua siab tshiab rau hauv acid, uas noj tam sim ntawd nyob rau hauv koj precious enamel. Tsis tas li ntawd, ib tug zoo xws li cov nyhuv muaj haus dej haus cawv, haus luam yeeb, dej qab zib uas muaj ntau ntau cov colorants, etc.

Qhov zoo ces, tam sim no kho hniav muaj cov neeg mob ib tug lossis loj ntau yam ntawm cov kev pab cuam rau hniav ntxuav hniav dawb nrog tsawg heev raug mob mus rau lawv. Yog li ntawd thawj ntawm tag nrho cov, muaj ib tug kws tshuaj dawb tso uas yog nqa tawm nyob rau hauv tsev qhia tshwj xeeb uas kawm cov kws kho hniav. Qhov no txoj kev muaj nyob rau hauv thov ib tug tshwj xeeb ntxuav hniav dawb gel rau koj cov hniav, uas yuav siv sij hawm nyhuv thaum koj qhib lub teeb teeb. Tej ntxuav hniav dawb yuav pab koj mus tau yooj yim ua ib qhov teeb meem ntawm daj hniav. Txawm li cas los, tus nqi ntawm xws Library yuav ua tau mus ib txhiab daus las, thiab tej zaum kuj ntau npaum li cas. Yog li ntawd yog vim li cas koj xav tau qhov no pov tseg?!

Tsis tas li ntawd, cov neeg feem ntau chaw uasi mus rau laser tshuaj dawb tso. Nws zoo li no yuav pab koj nco qab txog dab tsi daj quav hniav nyob rau ntawm cov hniav. Qhov no txoj kev yog nqa tawm kuj nyob rau hauv kev kho hniav qhov chaw ua hauj los yog chaw zov me nyuam. Tsis zoo li yav dhau los cov qauv no yog hais tias tus gel ua kom tshwm sim los ntawm raug laser. Qhov no txoj kev yog feem ntau tsim, vim nws yog pheej yig dua thiab tsawg dejnum rau ntawm cov hniav. Thiab tom qab ob los yog peb kev kho mob koj yuav tau yooj yim mus txog lub nyhuv, thiab yuav tsum tau ua kom haum txhua leej txhua tus nrog nws dazzling luag.

Cov neeg uas sim caiv los ntawm kev kho mob nrog kim khoom, tsim hniav ntxuav hniav dawb tom tsev. Ua li no, koj yuav tsum coj lub tev ntawm ib tug txiv qaub thiab tshiav cov hniav dawb sab. Tsis tas li ntawd koj yuav tau sim kom yaug cov hniav nrog ib tug daws ntawm txiv qaub kua txiv. Nws yog hais tias tus poj pab los ntawm birch ntoo tshauv, tov nrog ntsev. Thiab, ntawm chav kawm, koj yuav tsum tau muaj kev tshwj xeeb tshuaj dawb cov tshuaj txhuam hniav, uas yog tsis tau tsuas yog muag nyob rau hauv pharmacies, tab sis kuj nyob rau hauv ntau supermarkets. Paub tag nrho ntawm cov tswv yim, daj hniav - qhov no tsis yog rau koj!

Nco ntsoov tias, txawm li cas los, tsis tau raws li qhov xav tshwm sim thiab xav kom nws rau ib ntev lub sij hawm, sim raws li me ntsis li sai tau mus haus dej haus kas fes, haus luam yeeb luam yeeb, tsis kam los ntawm lub sij hawm mus khoom qab zib thiab cov dej qab zib nrog dyes. Los yog tsawg kawg yog zoo xws li cov haus dej haus los ntawm ib tug straw, ces ua tib zoo yaug qhov ncauj nrog dej thiab huv si hniav ntxuav hniav dawb cov tshuaj txhuam hniav. Nyob rau hauv txhua rooj plaub tsis tsim nyog qhov uas yuav muaj nrog cov kev tshwm sim, vim hais tias koj paub yuav ua li cas nyuaj nws yog mus cuag tej yam whiteness thiab kev zoo nkauj ntawm koj cov hniav.

Yog li, ua tsaug rau kev kho nyob rau hauv technology, "daj hniav" tsis yog ib tug teeb meem. Txawm li cas los, hais tias koj tseem tsis cia siab rau tus tshiab yees los yog tsis muaj nyiaj txaus, koj muaj peev xwm ib txwm siv lub qub pej xeem cov zaub mov txawv. Luag ntxhi rau noj qab haus huv!