Cov kab hniav hniav yog cov cuab yeej siv ntau zaus hauv kev kho mob. Lawv tsim nyog los ua ntau yam txheej txheem uas muaj cov nyhuv rov qab los yog rov ua dua tshiab. Feem ntau, lawv tau siv los ntawm cov kws tshaj lij hauv kev kho hniav zoo nkauj.
Definition and purpose
Hauv kev kho mob, siv cov hniav hlau los yog yas strips. Cov yav tas feem ntau yog ua los ntawm polyester. Consumable khoom muaj daim ntawv nqaim sawb 2-6 mm dav. Qhov saum npoo yog txau nrog ntau qib ntawm abrasiveness.
Lub hom phiaj tseem ceeb rau lawv siv yog shaping cov hniav hniav, nrog rau kev ua cov chaw interdental. Cov kws kho mob kuj hu lawv sib tsoo los yog abrasive strips. Lawv tsuas yog siv yog tias thaj chaw kho mob tsis tuaj yeem ncav cuag nrog cov twj siv teb. Strips tshem tawm cov deposits ntawm cov hniav, npaj, rov qab thiab zoo li tus veneers.
khoom nta thiab kev faib tawm
Cov khoom siv nocov khoom siv rau kev kho hniav yog siv nyob ntawm cov txheej txheem ua. Nws yog ib nqi sau cia hais tias cov strips yog heev nrov, vim hais tias lawv yog siv los kho manipulations ntawm ntau complexity.
Qhia cov cuab yeej los ntawm lub hom phiaj:
- Ntog polishing.
- Tshem tawm cov khoom sib xyaw lossis cov cement ntau dhau.
- Pib sib tsoo ntawm cov hniav yas.
Raws li tau hais los saum no, cov khoom siv kho hniav yas thiab hlau yog tsim. Txawm li cas los xij, lawv yuav muaj coarse los yog nplua abrasive txheej, lub txheej yog nyob ntawm tag nrho cov cuab yeej los yog ntawm ½ feem, thiab nws kuj tseem tuaj yeem tsis tuaj.
Yog tias muaj graininess, feem ntau nws yog sawv cev los ntawm cov ntaub ntawv hauv qab no:
- corundum;
- garnet;
- carborundum;
- pob zeb diamond;
- aluminium oxide.
Hniav strips kuj txawv ntawm cov xim (xiav, ntsuab, liab, daj) thiab los ntawm cov neeg ua haujlwm sab (ib lossis ob). Strips nrog coarse abrasive yog siv los tsim cov hniav thiab tshem tawm cov cement ntau dhau. Cov khoom nruab nrab-grained tshem tawm roughness, thaum cov khoom zoo-grained yog xav tau los polish rau saum npoo.
Qhov ntev ntawm cov khoom yog 12-18cm, thiab qhov dav yog 1.9-8mm, qhov nruab nrab thickness yog 0.15-0.2mm. Txhawm rau kom yooj yim dua, ob hom kev kho hniav raug nthuav tawm - yob thiab npaj txhij-ua strips. Cov cuab yeej siv tau pov tseg, yog li tom qab siv nws tam sim ntawd pov tseg.
Rulessiv
Strips kho hniav ua haujlwm kho thiab tiv thaiv kev ua haujlwm. Hauv thawj kis, lawv zoo li tus hniav, ntxuav qhov chaw interdental, tshem tawm cov cement ntau dhau, thiab hauv qhov thib ob, lawv tau siv los tshem cov quav hniav thiab ntxiv ci. Cov txheej txheem no raug tso cai ua tsis pub ntau tshaj ib zaug txhua rau lub hlis, thiab tsuas yog tias tsis muaj kab mob sib kis hauv qhov ncauj, cov enamel yog qhov tsis tshua muaj siab, thiab tsis muaj kev fab tshuaj.
Kev txhuam hniav nrog cov hniav txhuam hniav ua tiav hauv ob peb kauj ruam:
- Kev txiav txim siab ntawm thaj chaw ua haujlwm.
- Xaiv hom thiab qib ntawm abrasiveness ntawm lub cuab yeej.
- Tooth flat surface kho.
- Tshuaj zom hniav.
- Ua haujlwm tawm qhov chaw interdental.
Ua ntej tus txheej txheem, tus neeg mob yuav tsum tsis txhob haus luam yeeb thiab haus cawv li 24 teev. Nyob ntawm seb hom khoom siv, tus nqi ntawm kev ua haujlwm yuav txawv. Tus nqi ntawm cov strips los ntawm cov chaw tsim khoom yog qhov loj heev (los ntawm 47 mus rau 8,000 rubles). Qhov pheej yig tshaj yog cov khoom yas, thiab kim tshaj yog cov coated nrog txhuas oxide.
