Cov hniav dawb tsis muaj nyob hauv cov xwm txheej. Lawv cov xim yog nyob ntawm qhov chaw mos ntawm qhov chaw mos thiab tus hniav (ib qho nqaij tawv ntawm ib lub qauv tshwj xeeb uas ua rau feem ntau ntawm cov hniav) thiab feem ntau yog niam txiv. Yog li, feem ntau cov neeg Russians muaj xim hniav ze rau daj, thiab, piv txwv li, Asmeskas - nrog ib tus zas xim. Ob qho tib si yog qhia ntawm cov cai. Ntxiv rau cov caj ces, peb cov cwj pwm thiab kev noj haus cuam tshuam rau cov xim ntawm peb cov hniav. Piv txwv, kev siv tshuaj yej, kas fes, thiab haus luam yeeb kuj tuaj yeem ua rau lub suab ntawm cov hniav ntawm cov hniav. Kev siv cov tshuaj tiv thaiv ntev ntev hauv me nyuam yaus feem ntau ua rau muaj kev hloov hauv cov xim ntawm cov hniav (yog li "tetracycline hniav"). Lwm qhov ua tau yog kev raug mob los yog teeb meem thaum kho cov hniav yas. Cov xim ntawm tus menyuam cov hniav kuj tuaj yeem cuam tshuam qee tus niam cov kab mob thaum cev xeeb tub.
Thawj kauj ruam
Feem ntau, ib lub siab xav khav ntawm pearly dawb cov hniav tsis txaus. Rau txoj kev ua no, muaj kev qhia meej txog kev kho mob thiab cov kev tsis haum xeeb.
Cov hniav ntxuav hniav dawb yog oxidative tshuaj tiv thaiv, vim tias cov pigments nyob rau hauv qhov tob ntawm cov ntaub so ntswg uas muaj qhov muag ntawm tus neeg muag tshuaj dawb hloov mus rau cov khoom siv, thiab hloov cov khoom kho qhov muag, thiab yog, qhov xim ntawm cov hniav pom los ntawm cov neeg nyob ib puag ncig.
Cov txheej txheem rau kev siv cov hniav ntxuav hniav dawb yog nqa tawm tsuas yog cov hniav yog nyob rau hauv zoo meej mob. Yog li ntawd, cov hniav ntxuav hniav dawb ua ntej ua tshuaj dawb. Yog hais tias tus hniav laus yog thinned los yog denuded, ces tshuaj dawb xwb tuaj yeem exacerbate qhov teeb meem. Kev ntxhov siab yog ib txoj kev ua haujlwm uas ua rau tus qauv ntawm tus txiv neej lub cev ntu. Tsuas yog tus kws kho hniav tuaj yeem hais seb puas los yog tsis tsim nyog nws.
Cov Case of Technology
Cov txheej txheem rau kev tshuaj dawb ua tau los ntawm ob qho tib si hauv tus kws kho hniav qhov chaw ua hauj lwm thiab hauv tsev. Ua kom tiav qhov zoo tshaj plaws, kev sib xyaw ua ke ntawm cov tswv yim no yog kev pom zoo.
Qhov zoo tshaj plaws cov hniav ntxuav hniav dawb nyob rau hauv tus kws kho mob chav ua haujlwm siv cov roj teeb tshwj xeeb. Qhov no ua rau nws tau qee cov hniav rau ntau lub tones thiab rau ib lub sij hawm luv luv dua cov khoom siv yooj yim hauv kappa tsis muaj zog. Hauv qhov no, feem ntau yog mus ntsib kws kho mob ib teev.
Nco ntsoov: rau ob lub lis piam (!) Ua ntej cov hniav tshuaj ntxuav hniav dawb, nws yuav tsum tau ua txhua txoj kev los ntawm qhov ncauj huv si: kho cov kab mob, tshem tawm cov hniav nyiaj hniav kub thiab cov quav hniav. Txij li cov ntsaws ruaj ruaj tsis tau dawb, nws yog qhov zoo dua rau muab tso rau tom qab tus txheej txheem, xaiv xim ntawm cov ntsaws rau cov xim tshiab ntawm lawv cov hniav.
Dua li ntawm cov txheej txheem kev ntxuav hniav dawb, lub tsev "tsev tshuaj dawb" rau hnub no tseem yog qhov ntau tshaj. Rau cov neeg uas xaiv hom no, tus kws kho hniav ua rau ib tus neeg yas kappa, zoo li daim iav rov qab ua tus qauv ntawm cov hniav, uas ua rau cov kua nplaum yog siv. Cov txheej txheem txheem yog los hnav ib lub kappa txhua txhua hmo rau 14-20 hnub.
Ib qho hnyav tshaj plaws (kiag li tsis yog tshuaj) txoj kev ntxuav hniav dawb yog kev tu cov hniav (xws li AirFlow), uas tau tshem tawm cov nqaij npog, khib nyiab thiab cov quav muag, kom paub tseeb tias qhov chaw ntawm qhov chaw nruab nrab. Hauv qhov no, ib qho dej sib tov nrog cov dej qab zib tshwj xeeb yog siv rau cov hniav hauv siab. Kev kub ntxhov tsis raug mob thaum siv hom no. Vim tias ua li no, koj yuav pom qhov tseeb ntawm koj cov hniav, thiab lwm tus yuav xav tias tus txiv roj muaj qhov hnyav.
Whiteness ntawm cov hniav tsis yog qhia txog lawv txoj kev noj qab haus huv. Qhov tseem ceeb tshaj plaws yog los soj ntsuam lub cev kom huv ntawm lub qhov ncauj, qhov tsis tu ncua (tsawg kawg 1-2 zaug hauv ib xyoos) mus ntsib kws kho hniav, ua raws li qhov ntsuas kub ntawm kev noj haus. Thiab luag yuav luag zoo nkauj.
Txhuam koj cov hniav tsawg kawg 2 zaug hauv ib hnub rau 3-4 feeb, nrog rau sawv ntxov - tom qab noj tshais. Thaum muaj mob thiab nrog kev xau, cov hniav yuav tsum tau ntxuav nrog kev tu xyuas. Qhov zoo tshaj, siv txhuam hniav tom qab txhua pluas noj. Tsawg kawg yog tsis muaj qhov muab tshuaj txhuam. Hauv qhov no, qhov sib zog ntawm lub bristles xaiv nyob ntawm lub xeev ntawm koj tus hniav laus. Los ntawm txoj kev, nrog kev pab txhuam ntawm tus txhuam hniav uas koj xaiv tau koj tuaj yeem ua tiav thiab muaj peev xwm paub meej.
Tsis txhob hnov qab txog kev siv hlua dig hniav thiab ntau yam tshuaj yaug ncauj.
Hniav cov hniav yuav ntxuav qhov chaw nruab nrab thiab tiv thaiv kom tsis txhob muaj kab noj, lub qhov ncauj yaug pa thiab ua kom tsis txhob muaj cov kab mob hauv cov hniav.
Thiab nco ntsoov: ib tus zoo nkauj luag nyav yog tsis yog ib daig dawb dawb xwb, tab sis nws kuj yog kev zoo siab. Li ntawd, yuav zoo siab thiab noj qab nyob zoo!
Hnub no txoj kev ua lag luam muaj ntau yam khoom noj khoom haus rau cov khoom siv hauv tsev: siv cov pos hniav, cov tshuaj txhuam hniav, cov tshuaj tshwj xeeb. Txawm li cas los, tsis txhob siv lawv li.
Piv txwv, cov khoom siv tshuaj dawb yuav tsum tsis txhob siv ntau tshaj 2 zaug hauv ib lub lim tiam, txwv tsis pub nws tuaj yeem ua rau muaj kev txhawj xeeb ntawm cov hniav. Yog hais tias tus hniav laus yog thinned, thiab cov pos hniav muaj inflamed, ces tshuaj dawb tso tshuaj yog contraindicated.
Cov nyom ntawm cov pos hniav no tsis yog qhov tseeb, thiab nws lub ntsiab tseem ceeb yog deodorization thiab tshem tawm cov khoom noj seem.
Kev ntxuav hniav dawb tsis muaj peev xwm tau yog tias koj tau nruab:
- ntau cov kaus hniav ntawm cov hniav;
- cov kab mob uas cuam tshuam nrog underdevelopment ntawm tus kab mob npaws thiab tus hniav;
- tsis muaj teeb meem ntau ntawm cov hniav - mechanical or chemical;
- Fluorosis - qhov tsim nyog ntawm qhov ntau dhau ntawm cov tshuaj fluoride;
- kev tsis haum tshuaj rau cov tshuaj hydrogen peroxide lossis lwm cov khoom ua cim.
Kua txiv tsis tuaj yeem pom zoo rau cov menyuam yaus thiab cov tub ntxhais hluas hnub nyoog qis dua 18 xyoo, vim qhov no ua rau cov niam txiv tsis muaj zog ntxiv rau cov poj niam cev xeeb tub thiab cov poj niam pub niam mis.