Taw qhia: Rau cov tub ntxhais hluas lossis cov tub ntxhais kawm uas xav ua kom lawv cov hniav ncaj, ntau thiab ntau tus neeg yuav xaiv qhov tsis pom kev aligners (pob tshab braces) rau kev zoo nkauj. Cov chaw kho hniav feem ntau ua ntau ntau ntawm cov hlua khi, thiab hnav ib qho txhua 1-2 lub lis piam. Lwm, maj mam kho lub kaum sab xis ntawm cov hniav, thiab thaum kawg ua tiav kev kho mob orthodontic. Txawm li cas los xij, vim tias koj yuav tsum hnav ntau ntau txoj hlua khi, nws yog qhov teeb meem me ntsis thiab khib nyiab. Yog li puas muaj kev daws teeb meem zoo dua?
On February 10, 2022, the Antarctic Bear was informed that researchers from Germany, Egypt and the United Arab Emirates have developed a new type of 3D printed transparent dental appliance, which is different from the appliances currently on the market. It is made of shape memory polymer. It has a "4D" shape memory function.
The orthodontic device they developed uses Kline Europe's clear ClearX resin, 3D printed using a DLP process, that softens once placed in the user's mouth, allowing it to accommodate, grasp and reposition misaligned teeth. So far, the aligners are not only biocompatible, but have demonstrated the ability to predictably change properties over time, potentially becoming an ideal replacement for current clear braces.
△Researchers believe that their dental braces can greatly reduce the cost associated with the production of braces, picture from Prodways
Cov txiaj ntsig ntawm 4D Teeth Braces
Current appliances are made from different types of polymers, such as polyethylene materials, polyvinyl chloride, polyethylene terephthalate, polypropylene, polyester and polyurethane. The appliance works by controlling tooth movement by programming the deviation of the tooth's position from the actual tooth position. In most popular appliance systems on the market, each appliance can only move the teeth by {{0}}.2 to 0.3 mm, or 1 degree to 3 degree of rotation each time, and each appliance is worn for approximately 14 days before being replaced with the next one. Secondary appliance. Therefore, the correction cycle of teeth is long and the cost is high.
Rau cov cuab yeej no, cov kws tshawb fawb tau tsom mus rau ob qhov teeb meem tseem ceeb: qhov tsis zoo ntawm cov ntaub ntawv ib txwm muaj thiab kev xav txog kev noj qab haus huv ntawm cov hniav. Muaj ntau txoj hauv kev tau qhia txog kev ua kom muaj roj ntsha ua kom cov hniav txav. Ntawm qhov tod tes, kev taw qhia ntawm cov khoom siv tshiab kuj tau nyiam.
Puab lub cim xeeb polymers (SMPs) yog ib qho ntawm cov ntaub ntawv tshiab uas nyuam qhuav qhia rau hauv kev kho hniav, tshwj xeeb tshaj yog rau cov ntawv thov orthodontic. Lawv muaj peev xwm zoo rau kev siv cov ntaub ntawv kho mob.
Plaub -dimensional printing (4D printing) tshuab yog 3D luam ntawv raws li cov ntaub ntawv cim xeeb. Kom meej meej, 4D cov khoom luam tawm muaj peev xwm hloov cov duab nyob rau lub sijhawm (qhov thib plaub) nyob rau hauv ib puag ncig. Raws li cov ntaub ntawv nco txog cov ntaub ntawv polymer txuas ntxiv mus, cov ntawv thov tshiab 4D luam ntawv hauv kev lag luam tsim khoom yuav tsum loj hlob. Cov kws tshawb fawb coj 4D thev naus laus zis los tsim cov khoom siv kho hniav.
Daim duab 1: Customized typo (T) 21st hniav, 4D luam ntawv aligner (A) thiab grey splint (S) rau aligning lub aligner
Cov ntaub ntawv tshawb fawb, cov txheej txheem thiab cov txiaj ntsig
Ua ntej, cov kws tshawb fawb tau tsim cov qauv hniav kev cai siv cov hniav thiab cov hniav acrylic. Lub sab laug hauv nruab nrab incisor (tus hniav 21) tau dislocated nrog tag nrho cov dislocation ntawm 3 hli thiab txav tau los ntawm embedding nyob rau hauv liab ciab nyob rau hauv cov qauv, thaum lwm cov hniav yog tsau nrog resin (Fig. 1).
The team then used a standard Asiga Max 3D printer and ClearX resin, which it claims is an ideal material for "modification aligners," to create six pairs of 4D-printed aligners.
Cov khoom siv no yog siv rau cov qauv nrog cov hniav tsis zoo thiab tsau hauv dej kub. Thaum lub sijhawm txheej txheem no, cov quav ciab nyob ib ncig ntawm cov hniav tsis zoo softens, tso cai rau nws los ntawm cov khoom siv thiab tom qab ntawd txias kom ntes cov ntaub ntawv. (Cov txheej txheem tshwj xeeb yog qhov nyuaj dua, thov nyeem cov ntawv thawj yog tias koj xav tau.)
Cov txiaj ntsig tau pom tias cov khoom siv lub cim xeeb tau ua tiav qhov tseem ceeb ntawm cov hniav 21 thiab kev txav mus los kuj tau ntsuas hauv Orthodontic Measurement and Simulation System (OMSS). Tab sis lub hom phiaj ntawm kev sib tw mobile ntawm 3.00mm tsis tau mus txog, tsuas yog 2.06-2.82mm tau ua tiav. Txawm li cas los xij, cov txiaj ntsig tau txaus siab, nrog rau ib qho khoom siv lub cim xeeb ua tiav yuav luag ntau npaum li kev txav ntawm cov hniav raws li 10 cov khoom siv sib xyaw ua tau.
Tam sim no, 4D tshuab luam ntawv tseem nyob rau theem kev tshawb fawb, thiab nws yuav tsum tau ua lag luam sai li sai tau.
△ Orthodontic Measurement and Simulation System (OMSS) used to evaluate the efficacy of the team's 4D appliance
Kev lag luam kho hniav 3D luam ntawv yog tawg
Ob peb lub hlis dhau los ib leeg, kev loj hlob ntawm 3D luam ntawv hauv kev lag luam kho hniav tau ua rau cov neeg tsim khoom lag luam los qhia cov ntaub ntawv tshiab thiab cov tshuab, txhua tus tsim los pab txhawb siab - ntim aligner ntau lawm thaum lawv sib tw hauv qhov sai sai no. Lub ntiaj teb tau qhib rau hauv kev lag luam muaj txiaj ntsig zoo.
Earlier this month, Desktop Health, the medical business unit of 3D printer manufacturer Desktop Metal, released a new line of Einstein dental systems. The machines feature "HyperPrint" technology, which is said to be 50 percent faster than EnvisionTEC's Envision One system, launched with FDA-cleared Flexcera Smile Ultra plus resin.
Xyoo tas los, desktop LCD 3D tshuab luam ntawv tsim UNIZ kuj tau pib xa NBEE resin 3D tshuab luam ntawv. Tshwj xeeb tsim los daws cov kev xav tau ntawm cov kws kho hniav, qhov system no ua ke nrog kev ceev, zoo thiab siv tau rau 3D luam ntawv ntawm cov qauv aligner, cov hniav hauv qab, cov neeg saib xyuas hmo ntuj, cov lus qhia phais, cov yas thiab cov ntawv thov txuas hniav.
Cov tuam txhab xws li Prodways tam sim no tau pib ua 3D luam tawm kawg- cov khoom lag luam hauv cov ntim siab heev rau cov neeg siv khoom kho hniav. Thaum Lub Kaum Ob Hlis 2021, lub tuam txhab tau tshaj tawm tias nws tau raug txib kom muab cov neeg siv khoom loj uas nws lub tshuab yuav raug siv los tsim ntau tshaj li ib lab aligners ib xyoos.
The researchers' findings are detailed in their paper, titled "Potential Application of 4D Technology in Fabrication of Orthodontic Aligners."
