Dab tsi yog Dental Resin Materials?
Dec 28, 2024
Tso lus
Cov ntaub ntawv kho hniav thaum ntxov feem ntau yog cov plooj (porcelain), alloys, cov ntaub ntawv sib xyaw, thiab lwm yam. Nyiaj-mercury alloy tau siv ze li ntawm 150 xyoo thiab tau raug txwv nyob rau qee lub tebchaws nyob sab Europe vim nws toxicity. Kev txhim kho cov khoom siv kho hniav sib xyaw muaj qhov zoo xws li kev ua haujlwm yooj yim. Nws yog tsim los ntawm resin matrix, thiab lwm yam. Cov neeg tau tsim cov resin matrices nrog ntau yam zoo thiab optimized cov khoom los ntawm kev txhim kho cov fillers kom tau raws li cov kev xav tau.
Feem ntau siv resin matrices rau kho hniav resins
Epoxy cob matrix
Epoxy resin tuaj yeem pom ntau yam khoom zoo heev thaum siv los ua cov khoom siv kho hniav, kom cov neeg mob tuaj yeem muaj kev paub zoo dua thaum siv. Epoxy resin yog ib lo lus dav dav rau cov khoom siv polymer nrog ob lossis ntau dua epoxy rings hauv cov saw molecular thiab aliphatic, alicyclic lossis aromatic raws li cov saw tseem ceeb. Epoxy resin muaj cov cuab yeej zoo heev, muaj zog adhesion, siab corrosion kuj, muaj zog plasticity, zoo hluav taws xob rwb thaiv tsev thiab zoo thermal stability, yog li nws tsis yog tsuas yog siv dav hauv kev kho hniav, tab sis kuj nyob rau hauv ntau yam xws li hluav taws xob cov ntaub ntawv, anti-corrosion. coatings thiab adhesives. Nyob rau hauv daim ntawv thov kev kho hniav, epoxy resin feem ntau yog siv rau kev kho hniav, hauv paus kwj dej sealing thiab orthodontic brackets. Raws li kev hloov pauv rau cov khoom siv hlau, epoxy resin muaj zog ua haujlwm, zoo biocompatibility nrog cov qauv hniav, thiab elastic coefficient zoo ib yam li cov hniav. Nyob rau tib lub sijhawm, epoxy resin yog ze rau cov duab thiab xim ntawm cov hniav ib txwm thaum kho cov hniav.
Methacrylate resin matrix
Resin-based restorative cov ntaub ntawv yog siv dav hauv ntau yam kev kho ncaj qha thiab tsis ncaj. Feem ntau, cov resin matrix yog ib qho tseem ceeb ntawm cov khoom uas txiav txim siab lub zog ntawm cov khoom siv tag nrho. Resin-raws li cov ntaub ntawv kho hniav yuav tsum muaj fluidity lossis moldability ua ntej kho thiab muaj peev xwm muab cov neeg kho tshuab muaj zog txaus tom qab kho. Nyob ntawm cov yam ntxwv tshwj xeeb siv, cov resin matrix siv kuj txawv. Ntawm lawv, methacrylate resin kuj yog ib qho khoom siv feem ntau siv. Cov hauv qab no yog cov khoom siv sib xyaw ua ke ntawm hom no. Bisphenol A glycidyl methacrylate (Bis-GMA) yog thawj zaug resin matrix siv nyob rau hauv kev kho hniav thiab kuj yog ib qho ntawm feem ntau resin matrices. Bis-GMA yog tsim los ntawm bisphenol A (BPA) thiab glycidyl methacrylate. Lub steric hindrance ntawm cov monomer saw nyob ib ncig ntawm lub benzene nplhaib qauv thiab lub xub ntiag ntawm hydroxyl pawg ua rau Bis-GMA muaj siab viscosity thiab tsawg hydrophobicity. Nyob rau tib lub sijhawm, nws muaj cov qib siab ntawm kev sib txuas lus sib txuas thiab siab khoov lub zog. Bis-GMA muaj tsawg diffusivity nyob rau hauv cov ntaub so ntswg, uas ua rau nws tsawg heev toxicity. Txawm li cas los xij, Bis-GMA muaj viscosity siab. Yuav kom daws tau qhov teeb meem ntawm siab viscosity ntawm Bis-GMA, triethanol dimethacrylate (TEGDMA) feem ntau yog siv nrog nws. Vim hais tias cov interchain ncov qaumteb qabteb kev sib raug zoo ntawm TEGDMA tsis muaj zog, lub ntsiab saw hlau yog hloov tau yooj yim, thiab lub viscosity yog tsawg, nws yog feem ntau siv raws li ib tug diluent. Yog li ntawd, ob qho tib si sib xyaw ua ke sib txawv kom ua tiav qhov kev siv tsis tau.
Cov kev xav tau ntawm kev kho hniav resin composites
Hniav resin composites yog siv rau kev kho hniav kho hniav thiab yuav tsum tau ntsib ntau qhov chaw ntawm qhov ncauj. Kev kho yuav ua rau muaj kev ntxhov siab thiab deformation rau cov hniav zoo. Yog li ntawd, nws yog ib qho tsim nyog los txo qhov kev puas tsuaj rau cov hniav nyob ib puag ncig. Qhov no xav kom qhov chaw kho kom zoo dua qub nrog cov hniav qub thiab cov khoom siv zoo plasticity. Lub zog thauj khoom tsim los ntawm kev zom yuav ua rau muaj kev ntxhov siab thiab kev ntxhov siab hauv kev kho dua tshiab, uas cuam tshuam nrog cov khoom xws li cov duab geometry ntawm cov khoom. Nws yog ib qho tsim nyog yuav tsum nkag siab txog lub zog ntawm lub zog xws li khoov lub zog thiab cov qauv ua ntej, uas feem ntau yog txiav txim siab los ntawm peb lub ntsiab lus dabtsi yog khoov los ntsuas seb nws qhov kev ua tau zoo tuaj yeem siv rau kev kho hniav.
Cov khoom siv piv txwv
Cov yam ntxwv ntawm kev kho hniav resin composites
Hniav resin composites yog tsim los ntawm resin matrix thiab additives. Cov ntaub ntawv npaj nrog cov khoom sib txawv muaj qhov sib txawv lifespans, biocompatibility thiab dej nqus dej, uas cuam tshuam rau cov nyhuv rov qab. Txhawm rau tsim cov khoom siv kho hniav tshiab, nws yog qhov yuav tsum tau ua kom zoo dua qhov kev ua tau zoo, tiv thaiv lub cev tsis ua haujlwm thiab rov ua dua ntawm cov hniav caries, ntsuas los ntawm ntau yam, thiab siv cov kev hloov kho los txhim kho txhua yam zog, biocompatibility thiab nqus dej.
Cov ntaub ntawv kho hniav hloov pauv cov nyiaj-mercury alloy los kho cov hniav tsis xws luag hauv kev kho mob caries vim lawv qhov zoo, tab sis qhov loj me ntawm cov resin polymerization tuaj yeem ua rau microleakage thiab nce cov kab mob thib ob. Endowing cov ntaub ntawv kho hniav nrog cov tshuaj tua kab mob yog ib txoj hauv kev tseem ceeb los daws qhov teeb meem no. Ntxiv cov tshuaj tua kab mob rau cov khoom siv kho hniav yog txoj hauv kev tseem ceeb los pab lawv nrog cov khoom siv tshuaj tua kab mob.
Kev faib tawm ntawm cov tshuaj tua kab mob rau cov hniav sib xyaw
1.Synthetic antibacterial agents: Cov tshuaj tua kab mob hluavtaws ntxiv rau cov khoom siv kho hniav feem ntau suav nrog cov hlau thiab lawv cov oxides, quaternary ammonium ntsev, thiab tshuaj tua kab mob. Raws li kev ua haujlwm ntawm cov kab mob tua kab mob, lawv tau muab faib ua hom tsis tso tawm, tso tawm hom, thiab hom sib xyaw.
2.Non-tso hom tshuaj tua kab mob: xws li quaternary ammonium ntsev tebchaw xws li methacryloxy dodecylpyridinium bromide, nws cov tshuaj tiv thaiv kab mob yog tias cov kab mob tsis zoo ntawm cov cell membrane hu rau qhov chaw zoo ntawm cov resin, uas inactivates cell enzyme thiab denatures cov protein. tua kab mob. Cov kev tshawb fawb tau pom tias cov nplaum uas muaj cov kab mob zoo li no muaj cov nyhuv tiv thaiv kab mob hauv vivo.
3.Tshuaj hom tshuaj tua kab mob: xws li nyiaj nanoparticles, thiab lwm yam., cov tshuaj tua kab mob muaj xws li inactivating kab mob cell enzymes thiab ua rau oxidative puas. Nws tuaj yeem cuam tshuam kev loj hlob ntawm resin nto thiab tshem tawm cov kab mob, tab sis cov kab mob tua kab mob ploj tom qab txhua qhov kev tso tawm, thiab qhov tso tawm luv luv yog qhov loj thiab cytotoxic.
Cov tshuaj tua kab mob sib xyaw ua ke: los ntawm kev sib xyaw ua ke ntawm kev tso tawm thiab hom tsis tso tawm, kev loj hlob ntawm cov kab mob dawb nyob rau saum npoo ntawm cov ntaub ntawv cob yog inhibited.
Raws li tus kws tshaj lij cob 3D cov khoom tsim khoom, XINSHAN TECH UAyeej ib txwm coj kev tsim kho tshiab, ua kom pom tseeb thiab ua tiav raws li nws cov txiaj ntsig tseem ceeb, thiab muaj peev xwm los tsim kho tshiab hauv 3D tshuab luam ntawv daws teeb meem, CNC ua tshuab thiab 3D scanners.XINSHAN TECH UAmuaj ntau yam khoom siv cob, xws liDental Resin Rau 3D Printing, Resin 3d Printed Jewelry, thiab lwm yam., uas tau siv ntau yam kev kho hniav.
XINSHAN TECH khoom display
Dental Resin Rau 3D Printing
Resin 3d Printed Jewelry
Castable Resin Inspection Certificate
