Yuav ua li cas tshem tawm caries? Qhov kev xaiv zoo tshaj plaws yog siv cov khoom ntim niaj hnub. Hauv kev kho hniav, ntau pab pawg neeg muab tshuaj yog siv rau cov hom phiaj no. Kev xaiv ntawm ib qho kev sib xyaw yog nyob ntawm ntau yam: nws cov khoom, kev nyab xeeb rau lub cev, tus nqi. Cov ntsiab lus hauv qab no ntawm cov ntaub ntawv kho hniav yuav pab coj tus neeg mob.
Cov khoom ntim tau muab faib ua cov hauv qab no:
1. Silver amalgam. Cov ntaub ntawv no tau poob nws qhov qub qub, yog kev coj ncaj ncees, thiab tsis tau siv tsis ntev los no. Nws muaj mercury, cov vapors uas muaj tshuaj lom heev. Kev siv nyiaj amalgam thoob plaws hauv kev kho hniav yog vim muaj ntau yam zoo: lub zog, durability, siab antibacterial kev ua tau zoo, tus nqi qis. Qhov tsis zoo tseem ceeb: tsis tshua muaj adhesion, rov mus ntsib kws kho mob yuav tsum tau zom cov filling, unaesthetic tsos, cov ntaub so ntswg yuav darken thiab tawg, toxicity, xoob marginal haum.
2. Kev kho hniav cements. Dav siv li nees nkaum xyoo dhau los. Cov khoom ntim zoo tshaj plaws los ntawm pab pawg no, uas tseem siv niaj hnub no, yog iav ionomer cement. Cov khoom xyaw: silicon, aluminium, fluorine. Sib tov nrog dej distilled los yog polyacrylic acid (50% tov).
Dignity:
- tawv sai sai - hauv feeb;
- tso tawm fluorine, txhawb kev tsim cov hniav ntawm cov ntaub so ntswg - muaj kev sib xyaw ntawm fluoroaluminosilicate thiab polyacrylic acid (xws li txhaws tiv thaiv kev rov ua dua ntawm caries, yog li iav ionomer cement yog qhov tseem ceeb rau kev kho cov hniav cov hniav);
- noo noo tsis kam - tuaj yeem siv los ua cov khoom siv insulating uas tiv thaiv cov ntaub so ntswg los ntawm kev puas tsuaj;
- tsis muaj mob - tsis ua rau lub plab;
- adhesion siab - tuaj yeem khi nrog calcium hauv cov ntaub so ntswg tawv.
3. Composite filling cov ntaub ntawv. Feem ntau hauv kev thov tsis ntev los no. Cov khoom sib xyaw muaj cov organic matrix (synthetic resin) thiab inorganic muab tub lim (quartz hmoov). Rau kev kho cov hniav tom qab, cov khoom siv nrog cov quartz loj dua yog siv los muab lub zog tsim nyog rau lub sijhawm ntev.
Qhov zoo ntawm cov khoom sib xyaw:
- abrasion resistance;
- kev nyab xeeb kev noj qab haus huv;
- siab zog;
- yooj yim siv;
- zoo meej polish;
- txoj hauv kevrau kev ua tiav ntawm cov hniav anterior;
- cov khoom zoo nkauj zoo nkauj - cov khoom ntim tso cai rau koj kom ua raws li cov xim ntuj, kev ntxhib los mos, pob tshab, i.e. muab cov nyhuv ci qhuav;
- ntau yam.
Muaj Teeb Meem:
- rhiab heev - tshwm sim thaum cov txheej txheem kev kho mob raug ua txhaum cai, tso ntawm feem ntau ntawm cov khoom;
- nrawm nrawm, poob, yog tias cov khoom ntim tsis raug xaiv, kuj tsis tuaj yeem siv los kho cov neeg mob uas muaj kev puas tsuaj ntawm cov hniav enamel;
- cov hniav puas, chipping ntawm nws cov phab ntsa - cov khoom sib xyaw yuav tsum tsis txhob siv los kho cov hniav hniav uas tau raug rhuav tshem ntau tshaj 50%.
Yog li, kev xaiv ntawm cov khoom ntim tshwj xeeb - cement, hlau lossis polymer - yog qhov zoo tshaj plaws rau tus kws kho hniav. Nws yuav ntsuas qhov mob ntawm cov hniav thiab qhia qhov kev xaiv zoo tshaj plaws rau ib tus neeg mob.
