Qhov nruab nrab, tus neeg niaj hnub luag nyav 7 zaug hauv ib hnub, thiab nws cov hniav feem ntau pom tau rau lwm tus. Los ntawm cov xwm txheej, lawv cov txiv tsom iav yog ib cov neeg tuaj yeem, thiab lub plhaub zais hauv qab nws yog xim dawb, tab sis nyob rau hauv kev quab yuam, kev ua neej thiab kev noj haus, qhov hloov pauv thiab hloov daj.
Yuav zam tau qhov no, nws yog ib qhov tsim nyog yuav tau xyuas seb yog vim li cas cov hniav ua daj, thiab yuav ua li cas rau nws.
Yuav ua li cas cov hniav tuaj daj?
Muaj ob qho kev sib txawv, raws li ib qho kev tshwm sim ntawm tus hniav txha hniav laus daj:
- nyob rau nws ib tug tua yog ua;
- xim heev ntawm cov xim txha caj qaum.
Cov quav hniav daj ntawm cov hniav yog tsim muaj li:
- haus luam yeeb luam yeeb hauv luam yeeb, luam yeeb thiab hookah;
- Siv dej cawv ntau dhau (piv txwv: kas fes lossis tshuaj yej);
- nquag noj khoom qab zib, tshwj xeeb tshaj yog chocolate, thiab qab zib muaj cov khoom;
- tsis ua raws li kev nyiam huv ntawm kev kho hniav, vim tias yog tias koj tsis ntxuav lawv txhua hnub, ces muaj ib qho quav ntawm cov quav hniav uas yuav maj mam absorbed rau hauv lub voj voog thiab ces nws yuav yooj yim dua kom tshem nws.
Tus txha hniav ua daj tuaj raws li qhov tshwm sim ntawm qhov tseeb tias:
- Cov dej siv rau kev ua noj thiab dej haus yog saturated minerals;
- koj tau siv cov tshuaj tua kab mob los yog cov tshuaj muaj zog, piv txwv: tetracycline;
- muaj cov hnub nyoog hloov pauv uas ua rau ntuav thiab ntxiv xim;
- muaj ntau qhov kev hloov ntawm cov pluas noj, yellowing yuav ua tau ib lub cev ntawm lub cev rau tej kev hloov hauv kev noj haus;
- lub plawv hniav ntawm tus hniav raug puas ntsoog, nws tuaj yeem tshwm sim tom qab mob hlab ntsha tawg thiab lwm yam kev raug mob;
- haujlwm yog txuam nrog hlau co thiab lawv cov vapors, thiab qhov no cuam tshuam rau kev noj qab haus huv ntawm tag nrho cov plab hnyuv siab raum.
Tsis tas li ntawd xwb, peb yuav tsum hais tias thaum siv cov hlua ntawm cov hniav tuaj yeem pom cov xim daj, uas lawv tuaj yeem hu nrog tus daus. Qhov teeb meem no tsuas yog daws tau nrog tus kws kho mob.
Yuav ua li cas los kho lub suab ntawm cov hniav?
Cov hniav daj tuaj yeem raug tshem tawm hauv ntau txoj hau kev.
Hauv qhov chaw kho hniav:
- los yog ultrasonic tu ;
- kev tshuaj lom neeg.
Tom tsev:
- abrasive whitening paste;
- gels ntawm sib sib zog nqus nkaus;
- cov kab ua kua;
- hnav khaub ncaws li ob peb xuab moos;
- pej xeem tshuaj - dej qab zib, hydrogen peroxide , txiv qaub kua txiv, activated tsom iav lossis ntoo tshauv;
- tswj kev noj zaub mov thiab tshem tawm ntawm txoj kev haus luam yeeb.
Tab sis nws zoo dua tsis tuaj nqa koj cov hniav mus rau daj, vim tias nws yuav txaus los mus ntsib kws kho hniav txhua hnub, txhuam koj cov hniav ob zaug ib hnub thiab txwv kev siv cov khoom qab zib, kas fes thiab tshuaj yej.