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Zvinhu Zvishanu Zvakakosha Zvaunofanira Kuziva Nezve PMMA Dental Materials

Zviri Mukati
 Zvinhu Zvishanu Zvakakosha Zvaunofanira Kuziva Nezve PMMA Denta

Vatengi vazhinji vemazino vanoongorora PMMA nemutengo uye kuwanikwa kwayo. Asi mukushanda kwedu nemarabhoritari nevagovanisi muindasitiri yese, zvisarudzo zvinotungamira mukudzoserwa kwemishonga, kugadziriswazve, uye vashandisi vemazino vasingafari zvinowanzo dzokera kuchinhu chimwe chete chisingatariswe: kuti zvinhu zvinonzwisiswa zvakanaka sei zvisati zvaodha.

PMMA — polymethyl methacrylate — chimwe chezvinhu zvinoshandiswa zvakanyanya muzvigadzirwa zvemazino zvemazuva ano. Inochinjika, inoenderana nehupenyu, yakasimba pakunaka, uye inoenderana zvakanyanya nemaitiro eCAD/CAM emazuva ano. Asi sezvimwe zvinhu, ine hunyanzvi hwekushanda. Kuziva kuti magumo eemaema iwayo ndiko kunosiyanisa sarudzo yekutenga yakangwara neinodhura.

Chinyorwa chino chinotaura zvinhu zvishanu zvakakosha nezvezvinhu zvemazino zvePMMA: kuti chii uye kuti zvinogadzirwa sei, nei zvichishanda zvakanaka muzvipatara zvakawanda, pane zvipingamupinyi zvayo, kuti inoshandiswa sei mumakorona, mazino emazino, uye maimplant provisional, uye chii chiri kuuya mu PMMA technology. Ungave uchitenga lab imwe chete kana kutenga padanho repamusoro, izvi ndizvo zvinhu zvakakosha kuziva.

 

Chokwadi #1: Chii chinonzi PMMA - uye nei ichikosha

Tsanangudzo yePolymethyl Methacrylate

Polymethyl methacrylate ipolymer inogadzirwa nethermoplastic — chaizvoizvo synthetic acrylic resin — inoumbwa nekubatanidza methyl methacrylate monomers mumaketani marefu, akagadzikana kuburikidza nemaitiro anonzi polymerization. Mugumisiro wacho ichinhu chakajeka, chakareruka, uye chinodzivirira kutyoka zvinoshamisa kana zvichienzaniswa negirazi kana porcelain yechinyakare.

Mukurapa mazino, PMMA yave ichishandiswa kwemakumi emakore. Yakawana nzvimbo yayo kwete kuburikidza nekushambadzira asi kuburikidza nekushanda kwayo kwekiriniki: yakavimbika, inofanotaurwa, uye iri nyore kushanda nayo munzvimbo dzakasiyana-siyana dzerabhoritari.

Chinoita kuti PMMA ive yakakosha zvikuru pakushandisa mazino kusanganiswa kwezvinhu zvina zvakakosha:

  Kupenya: Hunhu hwayo hwekutumira chiedza hwakafanana zvakanyanya ne enamel yechisikigo, ndosaka PMMA restorations ichisangana zvakasikwa mumuromo.

  Kuramba kutyoka: Kusiyana negirazi receramics, PMMA inonwisa simba pane kupwanyika, zvichideredza njodzi yekukundikana kamwe kamwe.

  Kuenderana kwemuviri: Inobvumirwa zvakanaka nenyama yemuromo, uye ine nhoroondo refu yekushandiswa kwayo zvakachengeteka.

  Kuchengetedza mutengo: Inopa mhedzisiro yakasimba yekunaka nemutengo wakaderera pane mutengo we zirconia kana dzimwe nzira dze ceramic yakazara.

Kuumbwa uye Kugadzirisa

PMMA yakajairika ine maMMA monomers, macheni epolymer ekusimba kwechimiro, uye mapurasitiki ekusarudza kuti agone kuchinjika. Chinonyanya kukosha kune vatengi nemarabhoritari ndechekuti musanganiswa uyu hauna kugadziriswa — unogona kugadziriswa. Mafomu akasiyana anokodzera mashandisirwo akasiyana, uye vagadziri vane mukurumbira vanopa mabhuroko ePMMA akasiyana-siyana, sarudzo dzemumvuri, uye maprofayiri emakanika.

Kunzwisisa kusiyana uku kunobatsira marabhoritari nemapoka ekutenga kuti vatsanangure zvinhu zvakanyatsonaka, uye kunoderedza kuyedza nekukanganisa kunobva mukubata zvese PMMA sezvinogona kuchinjana.

 

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Chokwadi #2: Zvakanakira Zviripo Zvechokwadi — Uye Zvakananga

Kugara Nesimba

PMMA inogara kwenguva refu zvichienderana nerudzi rwayo. Mumamiriro ezvinhu akajairwa ekunze - kutsenga, kukuya, uye kuruma zuva nezuva - kugadziriswa kwePMMA kunogara zvakanaka. Makorona echinguvana anogara kwemavhiki kusvika kumwedzi kana achishanda zvizere. Mazino emazino akagadzirwa nePMMA anogara kwemakore ekushandiswa asati aratidza kusakara zvakanyanya.

Zvisinei, "inogarika" inyaya yemamiriro ezvinhu. PMMA inoshanda zvakanaka mukushandiswa kwayo uko isingatarisirwi kutakura mutoro wakazara wenguva refu wekugadzirisa kumashure zvachose mubhuruxer inorema. Muzviitiko izvozvo, dzimwe nzira dzakadai sezirconia dzine musoro. Muzviitiko zvakawanda zvekushandisa, simba rePMMA rakakwana - uye mutengo wakaderera-pa-yuniti inova mukana mukuru pakukura.

Kushanda Kwerunako

Kuyevedza ndiko uko PMMA inogara ichipa zvinhu zvakawandisa kana tichienzanisa nemutengo wayo. Kujeka kwayo kunoenderana zvakanyanya ne enamel yechisikigo, uye inowanikwa mumhando dzakasiyana-siyana dzemavara dzinogona kuenzaniswa chaizvo nemazino akaipoteredza. Inopenya kusvika yapenya zvakanyanya nekufamba kwenguva.

Kune mazino ekare uye mazino emazino ekare, varwere havawanzogona kusiyanisa PMMA nezvinhu zvinodhura. Izvi zvine chekuita nekurapwa uye kutengeserana kune marabhoritari anoshandira misika inoona nezvemutengo.

Kubata Nyore

PMMA inoregerera kushanda nayo. Inogadzira michina nenzira inofungidzirwa muCAD/CAM workflows, inogadzirisa zviri nyore padivi pechigaro, uye inogadzirisa nekukurumidza. Kune ma laboratori ane huwandu hwakawanda, izvi zvinoreva kuti inoshanda zvakanyanya. Nguva dzekugadzirisa nekukurumidza, kugadzirisa kushoma, uye kuisa zviri nyore zvinoreva kudzikisa mitengo yekugadzira - mukana unowedzera pamitengo mikuru.

 

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Chokwadi #3: Zvipingamupinyi Zvakafananawo — Ziva Usati Watenga

Apo PMMA Inokundikana

Kusafara kunowanzoitika nePMMA kunobva pakushandisa zvisiri izvo. Kukwesha pamusoro ndicho chinhu chikuru chinoikanganisa nekufamba kwenguva - munzvimbo dzinopfekwa zvakanyanya, pamusoro pacho panogona kusviba kana kuita mavanga madiki anokanganisa runako. Izvi zvinogoneka nekukwesha nguva dzose asi zvakakosha kuti zvishandiswe mukutaurirana nevarwere uye kugadzirisa maitiro avo.

PMMA ine simba shoma rekuchinjika makumbo pane zirconia kana lithium disilicate. Kune varwere vane simba rakasimba rekurumwa kana tsika dzeparafunctional, izvi zvinokosha. Kushandisa PMMA pakugadzirisa mushure memuviri zvachose muvarwere ava kunogona kukonzera kutadza kushanda zvakanaka uye mari yekutsiva.

Zvipingamupinyi zvitatu zvinokosha kuti uzvichengete mupfungwa dzako:

  Kupera kwenzvimbo nekufamba kwenguva: Kunonyanya kukosha kumabhiriji anoreba uye mabhokisi anorema zvakanyanya.

  Hazvina kukodzera kugadziriswa kwenguva refu: Zviri nani kushandisa kwenguva pfupi kana kushandiswa kwenguva pfupi.

  Kukanganisika nekukasira kana munhu agara achinetseka: Kashoma, asi njodzi yekugadziriswa kusina kutsigirwa zvakanaka kana kuti kutetepa zvakanyanya.

PMMA vs. Ceramics: Kuenzanisa Kwakarurama

Zvigadzirwa zveCeramics — kunyanya zirconia ne lithium disilicate — zvinoshanda zvakanaka kupfuura PMMA musimba uye hazvipfeki kwenguva refu. Ndidzo sarudzo dzinonyanya kufarirwa pakugadzirisa zvinhu zvachose. PMMA, kune rumwe rutivi, inokunda pamutengo, kukurumidza kugadzirwa, nyore kugadziriswa, uye kushanduka-shanduka kwerunako pamutengo.

Chidzidzo chinoshanda: zvinhu izvi hazvikwikwidzi mune zvakawanda zviitiko zvekurapa. Zvinoshanda mabasa akasiyana. Marabhoritari anochengeta zvese uye anoziva nguva yekushandisa chimwe nechimwe nguva dzose anogadzira mhedzisiro iri nani pane ayo akagadzirirwa chinhu chimwe chete muzviitiko zvese.

 

Chokwadi #4: PMMA Ine Mabasa Matatu Akasiyana Ekurapa — Rimwe Nerimwe Rine Zvinodiwa Zvakasiyana

Korona dzechinguvana

Makorona echinguvana ndiwo anonyanya kushandiswa nePMMA. Anogadzirwa nekukurumidza achishandisa CAD/CAM milling, anokwana zvakanaka, anotaridzika zvakanaka, uye anodzivirira zino rakagadzirwa panguva iyo kugadziriswa kwechigarire kuri kugadzirwa. Kune ma laboratori anoshandisa masisitimu emazuva ano ekugaya, tembiricha yePMMA inogona kugadzirwa mumaminitsi mashoma nemhedzisiro yakafanana uye inofungidzirwa.

Hunhu hwechishandiso chekupedzisira chenguva pfupi hunoenderana nezvinhu zviviri: hunhu hwechivharo chePMMA uye kunyatsogadzirwa kwemichina yekugaya. Zvinhu zvisina kurongeka zvakanaka kana chigayo chisina kugadzikwa zvakanaka zvinogadzira mipendero isingavharike, nzvimbo dzakaomarara, uye nguva pfupi dzinoda kugadziriswa nguva dzose. Kuita zvese zvakanaka kunobvisa zvichemo zvakawanda zvinowanzoonekwa nezvevashandi vePMMA.

Mazino Emazino Emazino Nemazino

PMMA yave iri chinhu chakajairika chekugadzira mazino emazino kweanopfuura makore makumi manomwe — uye nechikonzero chakanaka. Yakareruka, iyo inokosha kuti murwere anyarare mukati mezuva rese rekushandisa. Inopendwa zviri nyore kuti ienderane nenyama yegumbo. Yakasimba zvakakwana kuti igare yakadonha diki uye ishandiswe zuva nezuva. Uye inogona kugadziriswa uye kugadziriswa padivi pechigaro pasina michina yakasarudzika.

Mazino emazuva ano ePMMA ane mumvuri uye maficha anochinja-chinja zvichienderana nemazino echisikigo. Pamwe chete nehwaro hwakagadziridzwa zvakanaka, mazino ePMMA anoramba ari mhinduro inoshanda uye inodhura zvishoma kune vazhinji vevarwere vane denture.

Zvigadzirwa zveImplant

Mukurapa mazino akaisirwa, kudzoreredzwa kwechinguvana kunoita basa rakakosha munguva yekubatanidzwa kwemapfupa. Kunofanirwa kuchengetedza nzvimbo yekuvhiyiwa, kuchengetedza runako, kutungamira kuporeswa kwenyama yakapfava, uye kushanda pasi pemitoro chaiyo ye occlusal - zvese izvi zviri nyore kugadzirisa sezvo kuporeswa kuri kufambira mberi.

PMMA yakakodzera basa iri. Inogona kugadzirwa nekukurumidza usati wavhiyiwa kana kuti pakarepo mushure mekuvhiyiwa, kugadziriswa zviri nyore sezvo magadzirirwo enyama achichinja, uye kutsiviwa pasina dambudziko kana chinhu chakaiswa mukati chanyatsobatanidzwa. Mutengo wayo wakaderera unoitawo kuti zvive nyore kutsiva chenguva pfupi kakawanda panguva refu yekuporesa pasina mari yakawanda.

Chinhu chimwe chete chinofanira kucherechedzwa pakutenga: kunyatsogadzirwa kwemuchina wekugaya kunodiwa pakugadzirwa kwemuchina wekugaya kwakakura kupfuura kwemuchina wemazuva ano wekugadzira. Kukwana kwemuchina wekugaya kunokanganisa hutano hwematishu uye mhedzisiro yekubatanidzwa kwawo. Apa ndipo pane mhando yezvinhu zvePMMA nemidziyo yekugaya zvinhu zvakakosha.

 

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Chokwadi #5: Remangwana rePMMA Idhijitari — uye Riri Kufambira Mberi Nekukurumidza

Tekinoroji Iri Kukwidziridza Denga Rekushanda

PMMA yemakore mashanu apfuura haisi iyo PMMA iripo nhasi. Vagadziri vari kuramba vachivandudza mafomura: misanganiswa yakasimba, mabhuroko akawanda ane mavara akavakirwa mukati, ma antimicrobial variants anoderedza kunamira kwebhakitiriya, uye zvinhu zvakavandudzwa ne nanotechnology zvinovandudza runako uye kusapfeka.

Kufambira mberi uku kuri kudzima zvishoma nezvishoma musiyano uripo pakati pe "kwenguva pfupi" uye "kwechigarire" mubasa rekurapa rePMMA. Mamwe maformula matsva ePMMA ane simba guru ari kutoshandiswa pakugadzirisa kwenguva pfupi kusvika pakati nepakati muzviitiko zvakakodzera - maitiro angangoramba achienderera mberi sezvo sainzi yezvinhu ichifambira mberi.

CAD/CAM uye Chinoumba Midziyo

Zvakakosha kutaura zvakananga nezvechimwe chinhu chinowanzo furatirwa muhurukuro dzezvinhu: kunaka kwekugadziriswa kwePMMA kunongotariswa zvishoma nechinhu chacho pachacho. Maitiro ekugaya akakosha zvakaenzana.

Bhokisi rakanaka rePMMA rakagayiwa pamidziyo isina kugadzikwa zvakanaka kana kuti yekare rinoburitsa mhedzisiro isina kunaka - nzvimbo dzakaomarara, nzvimbo dzisina kukwana zvakanaka, zvinhu zvakaraswa. Kusiyana neizvi, bhokisi rePMMA repakati rakavimbika rakagayiwa pahurongwa hwakachengetedzwa zvakanaka, hwakanyatsogadziriswa rinogona kugadzira kudzoreredzwa kunopfuura mashandiro ekiriniki ezvinhu zvinodhura zvakagadziriswa pamidziyo isina kunaka.

Kune vanotenga nevanoongorora mutengo wavo wese wekugadzira, michina yekugaya ndiyo inoshanduka ine simba guru. Chigayo chakakodzera chinoderedza marara ezvinhu, chinowedzera simba rekushandisa, uye chinovandudza kuenderana kwechinhu chimwe nechimwe — PMMA kana chimwewo chinhu.

Maitiro eLabhoritari yeHybrid

Marabhoritari makuru emazino ari kuramba achishanda senzvimbo dzakasanganiswa: kusanganisa mashandiro edhijitari nekugaya kwakanyatsogadzirwa, kushandisa PMMA nezvimwe zvinhu zvakanyatsoenderana nezvinodiwa nekesi. Kubatanidzwa kweCAD/CAM, kugadzira otomatiki, uye kugadzira kwakabatsirwa neAI kuri kuderedza nguva yekugadzira uye kukanganisa kwevanhu panguva imwe chete.

Kune vanogovera nemapoka ekutenga, shanduko iyi ine zvazvinoreva. MaLab anoisa mari mumabasa edhijitari anoda zvinhu nemidziyo zvinoenderana nemasisitimu iwayo. Sarudzo dzekutsvaga dzinoitwa nhasi dzinofanira kufunga nezvekwakananga indasitiri, kwete kungodiwa kwazvino chete.

 

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Mhedziso

Zvishandiso zvemazino zvePMMA zvine chinzvimbo chakakosha uye chinogara kwenguva refu muchikamu chezvekugovera mazino — kwete nekuda kwekusashanda zvakanaka, asi nekuti zvinoramba zvichipa kukosha kwechokwadi kwekurapa uye kwehupfumi. Zvinoshanda zvakasiyana-siyana, zvinonzwisiswa zvakanaka, uye zviri nani gore rega rega.

Zvinhu zvishanu zvinonyanya kukosha kune vatengi nevatengesi: Hunhu hwePMMA hunogona kugadziriswa uye hahuchinjike pane zvese zvigadzirwa; zvakanakira zvayo murunako, kubata, uye mutengo ndezvechokwadi uye zvinoyerwa; zvipingamupinyi zvayo zvinofungidzirwa uye zvinogoneka kana paine sarudzo yakakodzera; mabasa ayo matatu ekiriniki rimwe nerimwe rine zvinodiwa zvakasiyana zvekushanda; uye remangwana rePMMA rakabatana zvakanyanya netekinoroji yedhijitari.

Kunzwisisa zvakadzama zvinhu zvirimo ndiko kunoita kuti kutenga zvinhu kuve kwakangwara, kudzoka kwezvinhu kuve kushoma, uye hukama hwakasimba nemarabhoritari nemakiriniki amunopa.

 

Kuti ivhure zvizere kugona kwePMMA, sisitimu yekugaya inokoshawo sezvinhu zvayo. Dentex inogadzira michina yekugaya chaiyo yeCAD/CAM yakavakirwa zvakananga marabhoritari emazino anoda kuenderana, kumhanya, uye kururama kwese kwese pakugadzirisa. Dzidza zvakawanda nezvemhinduro dzekugaya dzeDentex →

 

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