Cov txheej txheem rau fabricating tiav hniav hniav muaj peb kauj ruam loj: cov txheej txheem impression, tsim hniav hniav thiab cov hniav hniav fabrication.
Daim ntawv no yog hais txog kev tsim cov hniav cuav uas tshem tau siv CAD/CAM technology. Nws muaj peev xwm ua kom yooj yim cov txheej txheem ib txwm ua thiab daws cov teeb meem cuam tshuam. CAD/CAM txheej txheem yog ob - txheej txheem teem caij. Cov kev xav, cov ntaub ntawv ntawm lub puab tsaig, kev taw qhia dav hlau occlusal, cov hniav pwm, xaiv qhov ntxoov ntxoo thiab cov ntaub ntawv teev cov hniav maxillary anterior tau sau npe hauv thawj zaug. Lub sijhawm teem thib ob yog rau kev ntxig.
Taw qhia
Computer Aided Design - Computer Aided Manufacturing (CAD/CAM) thev naus laus zis twb tau siv ntau hauv kev kho hniav. CAD software txhais cov geometry ntawm ib yam khoom thaum CAM software coj cov txheej txheem fabrication.
Thaum xyoo 1980s, CAD/CAM tau siv los tsim kho kho hniav kho hniav thaum Andersson xav txog kev siv titanium rau kev tsim cov yas. Lwm qhov kev siv kho hniav tseem ceeb ntawm CAD/CAM thev naus laus zis kuj tau tshwm sim hauv xyoo 1980s. Mörmann tau tsim muaj kev txaus siab rau cov hniav - xim kho kom zoo nkauj. Nyob rau lub Cuaj Hli Ntuj ntawm tib lub xyoo, nws tau tso thawj lub rooj zaum tsim cov khoom siv kho kom zoo nkauj nrog cov khoom siv qhia thiab cim raws li CEREC 1 system. Hauv 20 xyoo tsis ntev los no, ntau lub tshuab kho hniav CAD/CAM tau nthuav tawm rau hauv cov hniav, yas, veneer thiab kho hniav ib nrab.
Txawm li cas los xij, kev txhim kho ntawm CAD / CAM rau kev tshem tawm cov hniav tag nrho tau qeeb heev. Advanced Manufacturing Technology (AMT) tsis tau ua tiav hauv daim teb no. Goodacre et al tau sau tias, "Thaum CAD/CAM thev naus laus zis rau kev tsim cov hniav cuav ua tiav, nws yuav muaj peev xwm luam theej duab cov hniav hauv paus morphology thiab cov hniav uas tau sau nrog cov txheej txheem no thiab xa cov ntaub ntawv no mus rau hauv qhov kev npaj kho hniav virtual uas cov hniav tuaj yeem hais tawm thiab tom qab ntawd xa cov ntaub ntawv mus rau lub tshuab milling rau kev tsim cov hniav tiav ".
Ntau xyoo dhau los, ntau txoj hauv kev rau duplicating thiab fabricating tiav hniav hniav siv CAD/CAM system tau sim. Nrog rau kev qhia txog kev lag luam muaj CAD/CAM cov hniav nyiaj hniav kub zoo li AvaDent thiab Dentca, Inc., lub sijhawm ntawm cov hniav cuav tiav tau tuaj txog.
Lub hom phiaj ntawm tsab xov xwm no yog piav qhia txog cov txheej txheem kho mob uas yuav tsum tau ua kom tiav cov hniav hniav siv CAD / CAM thev naus laus zis.
Cov txheej txheem kev tsim cov txheej txheem ntawm cov hniav uas tshem tau tiav
Tshem tawm cov hniav tag nrho yog ib qho kev kho hniav prosthesis, uas hloov tag nrho cov hniav thiab cov qauv txuam ntawm maxilla thiab mandible9. Cov hniav txhuam hniav ua tiav ua haujlwm los kho kom zoo nkauj, mastication thiab hais lus. Nws muaj ntau qhov chaw thiab qhov chaw xws li cov hniav hauv paus, flange ntawm cov hniav hniav, cov hniav hniav thiab cov hniav nyiaj hniav kub ciam teb.
Cov txheej txheem ua kom tiav cov hniav zoo ib yam yog tsib - txheej txheem teem caij
- Ua qhov kev xav ua ntej
- Ua qhov kev xav zaum kawg
- Tsim cov ntaub ntawv kev sib raug zoo ntawm lub puab tsaig
- Npaj cov hniav prosthetic thiab sim-hauv
- Muab tso rau / tso cov hniav hniav kom tiav
