Inoumbwa nemonomer uye oligomer uye ine mapoka anoshanda anoshanda.Inogona kutanga kuita polymerization nemwenje initiator pasi pe UV irradiation kugadzira isinganyungudika firimu.Chiedza chakarapwa resin, inozivikanwawo se photosensitive resin, ndeye oligomer inogona kukurumidza kuchinja mumuviri uye kemikari munguva pfupi mushure mekuvhenekerwa nechiedza, uyezve crosslink uye kurapa.UV inorapika resin imhando yephotosensitive resin ine yakaderera hama molecular uremu.Iine mapoka anochinja anogona kurapika neUV, senge unsaturated double bond kana epoxy groups.UV inorapika resin ndiyo matrix resin yeUV inorapika machira.Iyo inosanganiswa ne photoinitiator, inoshanda diluent uye zvakasiyana-siyana zvinowedzera kuumba UV anorapika machira.
Iyo UV inorapika resin inoumbwa ne monomer uye oligomer.Iine mapoka anoshanda anoshanda uye inogona kutanga polymerization reaction nemwenje initiator pasi pe UV irradiation kugadzira isinganyungudika firimu.Bisphenol A epoxy acrylate ine hunhu hwekukurumidza kuporesa kumhanya, yakanaka makemikari anonyungudutsa kuramba uye kuomarara kwakanyanya.Polyurethane acrylate ine hunhu hwekuchinjika kwakanaka uye kupfeka kuramba.Chiedza chakarapwa composite resin chinowanzo shandiswa kuzadza nekugadzirisa zvinhu muDhipatimendi reStomatology.Nekuda kweruvara rwayo rwakanaka uye rimwe simba rekumanikidza, inoita basa rakakosha mukushandiswa kwekiriniki.Takawana mhedzisiro inogutsa mukugadzirisa kuremara kwakasiyana-siyana uye cavities yemazino epamberi.
Kuenzanisa kwekurapa kwemuromo
Kune yakakura-nzvimbo yakadzika caries, nzira dzakawanda dzechinyakare dzekudzoreredza dzine zvadzo zvakanakira nekuipira: amalgam ine kuomarara kwakanyanya uye yakasimba yekumanikidza kuramba, asi haina adhesion (hapana nzira mbiri kudhonza), inongotsamira pamagetsi embedment, ine zvinokambaira, uye ine. imwe corrosiveness uye toxicity.Kuongororwa kwezvinhu zvakanyungudutswa kunoratidza kuti Mercury, sirivha, mhangura uye zinc zvinonyungudutswa [2];Girazi ionomer simenti ine adhesion yakanaka, asi ine hurema husina kunaka, haina kupfeka uye iri nyore kuchinja ruvara;Inlay (inosanganisira alloy, mapurasitiki uye porcelain) kudzoreredza, korona post korona core kudzoreredza, simbi shell korona uye porcelain yakasanganiswa kune simbi kudzoreredza korona inoshandiswa zvakanyanya mukiriniki yekudzidzira, asi kugadzirira mazino kune yakakura kupfeka, yakaoma maitiro uye mutengo wakakwira.
UV inorapika inosanganiswa resin inoshandiswa zvakanyanya mukiriniki.Iine maitiro akanaka, mavara akanaka uye anogara kwenguva refu, kushanda kuri nyore, kudhura kwakaderera uye kwakakurumbira zvikuru.Asi photosensitive resin ine phototropism.Iyo nzira yekuzadza yakananga mumuromo inogamuchirwa, uye mwenje sosi inobva kune imwe nzira, inosungirwa kukonzera kuti resin polymerization pazasi uye madziro ebako haana kunaka sepamusoro, zvichikonzera kutsemuka pajunction. yemazino epasi [3].Zvimwe zvidzidzo zvakaratidza kuti dhigirii rekurapa resin yakasanganiswa mushure mekurapa kwechiedza ndeye 43% ~ 64% [3].Muchokwadi, mafirita akadaro anongotamba 1/2 ~ 2/3 yezvinhu zvavo zvenyama.Kuti ugadzirise dambudziko iri, kuzadza kwakadzika (2 mm kwega kwega) kunowanzo shandiswa pakurapa kwechiedza mukiriniki, asi imwe neimwe nzira yeiyi nzira inoratidzwa kune inonyorova munzvimbo yemuromo, saka pane stack ye n- 1 "ma layers" mukuzadza ari single layer.Iye zvino inoshandiswa zvakanyanya mukuputira uye inki.
Nguva yekutumira: Jul-19-2022