Kev ua tau zoo ntawm kev siv tshuaj loog (anesthetic dentistry) yuav rov qab tau cov hniav uas muaj ntau txoj hauv kev, siv cov kev tsim tawm tshiab hauv cov tshuaj thiab cov ntaub ntawv hnyav.
Hom kev tivthaiv niaj hnub no:
- Cov hniav cem tau tshem tawm (ntawm txhaj tshuaj molding thermoplastic).
- Tshem tawm cov hniav clammed (nrog rau hlau hooks ua fastening).
- Acrylic cov hniav yas tshem tawm.
Cov ntaub so ntsev tawm tau yooj yim
Thaum lub sij hawm ntawd, hom kev tiv thaiv no zoo nkauj heev thiab xav thov kom muaj ntau yam:
- Nyob rau hauv nylon, tsis muaj ib qho residual monomer, yog li ntawd nws tsis ua rau tsis haum;
- cov khoom tsis nqus cov kua hauv lub qhov ncauj, raws li, cov kab mob microflora tsis nyob thiab ua rau nws (tsis-hygroscopicity);
- Tsis txhob plam cov hniav uas yog vim yooj yim ntawm txoj cai;
- Ion pauv hauv lub qhov ncauj kab noj hniav yog tsis hnov qab; nyob rau hauv nylon prosthesis tsis muaj hlau yam;
- siab ua kom zoo nkauj vim tau txhais cov ntsiab lus ntawm qhov khoom thiab tseem yuav xaiv nws hauv cov xim ntawm cov pos hniav;
- Nylon cov hniav cuav muaj qhov siab elasticity thiab lub zog;
- nyob rau hauv lub luag haujlwm ntawm cov kho tsheb yog cov khoom siv qoob loo-khij (rov zoo li cov hniav ntawm cov hniav zoo);
- Txoj kev txhaj tshuaj kub ua rau nws ua tau kom ncav tau qhov siab tshaj plaws ntawm kev haum tus txheej txheem thiab qhov chaw ruaj khov siab ruaj khov;
- siv ntawm ib qho dej khov ruaj khov tiv thaiv kom tsis muaj teeb meem ntawm cov hniav nyob rau hauv txoj cai;
- Kev tiv thaiv yog kev ceev nrawm thiab kev zom zom yog tsis ua txhaum.
Nylon cov hniav cuav - kev tsis sib haum xeeb:
- Siab mobility ntawm cov nqaij ntawm cov pos hniav.
- Caij muaj kab mob.
- Periodontitis.
- Muaj zog atrophy ntawm cov pos hniav.
- Tsawg qhov siab ntawm crowns ntawm cov hniav zoo.
Disadvantages ntawm nylon hniav cuav:
- siab tus nqi ntawm tus qauv, nws cov installation thiab tom qab kho;
- nyuaj rau kev saib xyuas;
- yog tias raug mob, txoj kev kho tsis zoo yuav kho tsis tau;
- tsis muaj peev xwm polishing tsis muaj zog;
- incorrect tis ntawm masticatory load;
- tsis muaj kev pabcuam rau ntawm cov hniav vim tias qhov yooj yim ntawm tus qauv;
- atrophy ntawm lub alveolar;
- kev ua txhaum ntawm kev zom ua haujlwm.
Muaj ntau cov kev tsis zoo ntawm nylon tshem tawm cov hniav yas tawm tsam yog tias koj nrhiav kev pab los ntawm ib tug kws kho hniav hauv lub sijhawm.
Kev tsim ntawm nylon hniav cuav
1. Kev npaj ntawm lub qhov ncauj kab noj hniav:
- tshem tawm cov ntaub so ntswg;
- hniav txhuam;
- tshem tawm ntawm cov quav hniav thiab tartar;
- hniav ntxuav hniav dawb (yeem).
2. Tshem tawm ntawm cov qe yas nrog cov yas hniav (alginal) pawg.
3. Kev tsim cov qauv tshuaj gypsum.
4. Kho ib qho zuaj ib ntus nrog ib tug qauv ntawm cov hniav.
5. Kev kho lub tswv yim (yog tias tsim nyog).
6. Folding lub prosthesis tawm ntawm nylon.
7. Tiav qhov khoom.
8. Kev siv phom sij thiab zaum kawg.
Ib cov hniav pob nylon tag nrho yog xaiv raws li qhov loj ntawm lub puab tsaig thiab qhov dav ntawm cov pos hniav. Nws yog siv tshwj xeeb ua ib ntus lwm txoj hau kev rau ib qho kev cog lus ntawm kev cog hniav thiab tsis tuaj yeem siv tau ntev. Qhov no yog vim lub siab elasticity ntawm cov nylon prosthesis, uas ua rau nws tsis yooj yim sua kom ua zom zog. Tsis tas li ntawd, ib cov ntaub thaiv nylon tsis tiav yuav ua tsis tau tas li nrog kev pab ntawm cov phom tshwj xeeb hauv nws sab hauv, los yog nrog kev pab los ntawm
Kev kho cov nylon hniav cuav:
- ntxhuav txhua hnub nrog cov tshuaj txhuam hniav tshwj xeeb;
- soak cov khoom nyob rau hauv lub da dej tsim rau lawv;
- Muab cov khoom nchuav rau kev tu vaj tse kom kuaj txhua ob lub hlis.
Lub neej kev nylon cov hniav cuav
Nrog kev tu thiab ceev faj tus cwj pwm, cov ntaub qhwv cov ntaub qhwv tau tawm mus ntev txog 7 xyoo. Lub sij hawm li ib txwm ntawm kev ua hauj lwm ntawm cov khoom zoo li no, qhov nruab nrab, 2-3 xyoos.