Bloomden PEEK - njira yopanda zitsulo muukadaulo wamano

Kuyamba kwa Polyetheretherketone (PEEK)

Polyetheretherketone (PEEK) ndi chinthu chopangira mano chopangira utoto chomwe chakhala chikugwiritsidwa ntchito ngati biomaterial mu orthopedics kwa zaka zambiri. Mu 1978, idapangidwa ndi gulu la asayansi aku Britain. Pambuyo pake PEEK idagulitsidwa pazinthu zamafakitale. Pofika kumapeto kwa zaka za m'ma 1990, PEEK anali wofunikira kwambiri wochita bwino kwambiri ku thermoplastic kuti alowe m'malo mwa zida zopangira zitsulo.

Mapulogalamu

• Korona wa PEEK

Kuyika ndi sulfuric acid kumapangitsa kuti pakhale mawonekedwe osinthika a mankhwala omwe amalola kuti azilumikizana bwino ndi ma hydrophobic resin composites. Zinawoneka kuti mphamvu ya kumeta ubweya wa simenti yopangidwa ndi utomoni inali yokwera kwambiri ngati 15.3 7.2 MPa itasungidwa m'madzi pa 3780 C kwa 60-90 s ndi sulfuric acid etching. Etching yokhala ndi Piranha Acid ndi Kugwiritsa Ntchito Zomatira Zomatira zawonetsedwa kuti zimatulutsa mphamvu zomangira utomoni wofika mpaka 23.4+/-9.9MPa m'zitsanzo zakale za PEEK. Panalibe kusiyana kwakukulu mu mphamvu zomangira zomangira pakati pa korona wa PEEK ndi ma dentin abutments pogwiritsa ntchito mpweya wa abrasion ndi njira za sulfuric acid etching. Kafukufukuyu akuwonetsa kuti PEEK itha kugwiritsidwa ntchito ngati cholembera pansi pa ma resin composites.

• Kusintha kwa mtengo wa PEEK

Poganizira kukwanira kwa biocompatibility, machiritso a implant amatha kupangidwa pogwiritsa ntchito PEEK. Kukhazikika kwa mafupa ndi kutupa kwa minofu yofewa sikunasiyane kwambiri pakati pa PEEK ndi titaniyamu abutments. Kuphatikiza apo, microflora yapakamwa yolumikizidwa ndi PEEK abutments inali yofanana ndi ma abutments opangidwa ndi titaniyamu, zirconia, ndi polymethyl methacrylate. Kugwirizana kwapafupi kwa modulus yotanuka ya fupa ku PEEK pamwamba kumachepetsa mphamvu yoteteza kupsinjika ndikulimbikitsa kukonzanso mafupa. Chifukwa chake, PEEK ikhoza kukhala njira ina yogwiritsira ntchito titaniyamu popanga ma implant abutments.

• PEEK mu ma Prostheses ochotsedwa

Ma mano achikhalidwe ochotsamo (RDPs) okhala ndi mafelemu a chrome-cobalt ndi ma clasps atuluka ngati njira yotsika mtengo komanso yodziwikiratu yochiritsira odwala omwe akudwala pang'ono. Kuwoneka kosavomerezeka kwazitsulo zazitsulo, kulemera kowonjezereka kwa prosthesis, kuthekera kwa kukoma kwachitsulo, ndi kusagwirizana ndi zitsulo zapangitsa kuti pakhale zipangizo zambiri zopangira thermoplastic, monga nayiloni ndi acetal resins, muzochitika zachipatala. M’zaka zingapo zapitazi, njira ina yopangira ma prosthetic material (PEEK) yakhala ikugwiritsidwa ntchito bwino m’zachipatala, makamaka pankhani ya mafupa. Zinthu zosinthidwa za PEEK zokhala ndi 20% ceramic filler ndi polymer yogwira ntchito kwambiri yokhala ndi biocompatibility yayikulu, makina abwino amakina, kukana kutentha kwambiri komanso kukhazikika kwamankhwala. Chifukwa cha zotanuka modulus yake ya 4 GPa, imakhala yotanuka ngati fupa, imachepetsa kupsinjika komwe kumapatsirana. Kuphatikiza apo, mtundu woyera wa chimango cha PEEK umapereka njira yokongola yosiyana ndi ziwonetsero zachitsulo zachikhalidwe. Ubwino wina wa zinthu za polima izi ndikuchotsa ziwengo ndi kukoma kwachitsulo, kupukuta kwapamwamba, kuyanjana kwa zolengeza komanso kukana kwabwino kwa abrasion.

• PEEK orthodontic mawaya

PEEK itha kugwiritsidwa ntchito ngati waya wokongoletsa orthodontic. Poyerekeza ndi ma polima ena, monga polyvinylsulfone (PES) ndi polyvinylidene fluoride (PVDF), PEEK orthodontic mawaya amapereka mphamvu zapamwamba za orthodontic. Mphamvu zofanana za orthodontic zinapezedwa poyerekeza ndi titaniyamu-molybdenum ndi waya wa nickel-titaniyamu.

• PEEK implants

M'zaka za m'ma 1960, ma implants a intraosseous mano anali opangidwa ndi zitsulo zoyera za titaniyamu ndi titaniyamu. Ngakhale kuti ma implants a titaniyamu amathandizidwa ndi umboni wochuluka woyesera ndi kafukufuku wachipatala, pali mavuto ena pakugwiritsa ntchito kwawo kuchipatala. Chimodzi ndi kuthekera kolimbikitsa titaniyamu. Chachiwiri, poyerekeza ndi fupa la mafupa a munthu, zotanuka modulus ya titaniyamu ndi yokwera kwambiri, yomwe imakonda kukonzanso kapena kuwonongeka kwa fupa. Chachitatu, ma implants azitsulo alibe kuwala, zomwe zimakhudza maonekedwe.

Mu 1998, kampani yaku Britain Invibio idakhazikitsa implants za PEEK. Pakubwera kwa malonda a PEEK implants, kafukufuku wokhudzana nawo wawonjezeka pang'onopang'ono. PEEK ndi zida zake zosinthidwa zili ndi katundu wabwino. Akatswiri ena amakhulupirira kuti ma implants a PEEK amatha kupewa kuchitika kwa zovuta zoteteza kupsinjika, ndipo amatha kusinthanso ma implants achitsulo mu opaleshoni ya pulasitiki, opaleshoni yovulala ndi zina.

ubwino

1. Biocompatibility - The biocompatibility ya PEEK yatsimikiziridwa, ndi maphunziro angapo omwe amatsimikizira kuti alibe poizoni. Ngakhale atagwiritsidwa ntchito mwa odwala masauzande ambiri, PEEK imakhalabe yabwino kwambiri poyerekeza ndi zitsulo, zomwe zingayambitse kusagwirizana ndi 15% ya anthu.

Zigawo za PEEK zimagwiritsidwa ntchito mu implants za msana, zowonongeka zowonongeka, m'malo mwa chiuno ndi mawondo, ndi zipangizo zina zamankhwala. Mulimonsemo, palibe kukayikira za chitetezo cha PEEK m'thupi.

2. Zida zamakina - PEEK ili ndi chiŵerengero chabwino kwambiri cha mphamvu ndi kulemera, chomwe chiri chofunikira kwambiri pa ma implants a mano ndi zipangizo. Poyerekeza ndi zitsulo, PEEK ndi yopepuka komanso yabwino kwa wodwalayo. Chitonthozo chowonjezerachi sichimasokonezanso kulimba, chifukwa PEEK imatha kupirira mphamvu zowononga komanso zopondereza popanda kutaya kukhulupirika kwake. Polima iyi sichita dzimbiri ndipo imatenga chinyezi pang'ono, kotero imatha zaka zambiri popanda kuwonongeka kwa magwiridwe antchito.

3. Kuthekera kwa Machining-Madokotala a mano akudalira mapangidwe othandizidwa ndi makompyuta (CAD) ndi makina (CAM) kuposa kale lonse, ndipo PEEK ndi yabwino kwa izo. Chofunikira pazida zamakono zamano ndizofanana ndendende ndi momwe wodwalayo alili, ndipo CAD/CAM ndiyofunikira kuti apange. Izi zimatsimikizira kuti chipangizocho chidzapumula bwino, chimagwira ntchito bwino komanso chidzagwiritsidwa ntchito kwa nthawi yayitali.

Ngati PEEK imapangidwa motsatira zomwe wopanga amapanga, imasunga katundu wake pambuyo pa mphero. Kukhazikika kowonjezereka kumeneku kumapangitsa kuti pakhale kusinthasintha kwakukulu panthawi ya mapangidwe ndipo zimapangitsa kuti zikhale zosavuta kuti madokotala azitha kupatsa odwala awo zipangizo zamakono.

Kugwirizana kosavuta kwa PEEK ndi njira za CAD/CAM kumatanthauzanso kuti itha kukonzedwa mwachangu komanso mosasintha. Mwachidule, zida za PEEK zitha kupangidwa modalirika komanso mwachangu.

4. Kusinthasintha - Polima wochita bwino kwambiri uyu ndi wokhazikika koma wosawuma. Ikapanda kudzazidwa, imapereka modulus yofanana ndi fupa la cortical, kupanga PEEK kukhala mano amphamvu, osinthasintha. Ndi kusinthasintha kwake kowonjezera, PEEK imamva mwachilengedwe mkamwa ndipo imakhala yotanuka ngakhale patatha zaka zambiri ikuluma ndi kutafuna. Zipangizo zamano ziyenera kukhalabe ndi mawonekedwe ake pomwe zikukakamizidwa nthawi zonse, ndipo PEEK ndi imodzi mwama polima abwino kwambiri pa izi.

5. Radiolucent - The fupa-ngati modulus ndi radiolucency wa PEEK ndi zinthu ziwiri zimene poyamba anakopa chidwi ofufuza zachipatala PEEK, ndipo ndi chimodzi mwa zinthu zabwino kwambiri za polima. M'zaka zaposachedwa, kafukufuku wokhudza ma implants a PEEK awonetsa kuti zinthuzo zili ndi kuthekera kwakukulu pankhaniyi.

Ma radiolucency a PEEK ndi chinthu chamtengo wapatali pamene zinthuzo zimagwiritsidwa ntchito mu njira iliyonse yoikamo. Akayikidwa, polima sichidzasokoneza ma X-ray, CT kapena MRI scans. Popeza ma X-ray ndi ofunikira pakuzindikiritsa mano, kusawoneka bwino kwa PEEK pachithunzichi kudzatsimikizira kuti madokotala atha kuchita ntchito yawo yoyang'anira thanzi la odwala. Pomwe ma radiolucency apamwamba a PEEK angawoneke ngati cholepheretsa, polima amatha kuwonjezeredwa ndi zowonjezera monga barium sulfate kuti apange kusiyana kwabwinoko.

6. Aesthetics - Monga momwe PEEK ingapangidwire mosavuta m'mawonekedwe achikhalidwe, ikhoza kukhala mtundu wofanana ndi wodwala. Mosiyana ndi zimenezi, zitsulo nthawi zambiri zimakhala zosatheka kubisala pakamwa, zomwe zimadetsa nkhawa odwala.

PEEK ndi mankhwala a mano omwe amasakanikirana mosavuta mkamwa chifukwa mtundu wake ukhoza kusinthidwa pokonza. Ngakhale mano athunthu amatha kupangidwa mwachilengedwe, kuwonetsetsa kuti odwala amatha kulankhula, kumwetulira komanso kudya molimba mtima.

7. Kulawa kopanda ndale - Vuto lina la zida zachitsulo ndiloti amapereka kukoma kwachitsulo kwa odwala ambiri. Si nkhani yathanzi, koma ndizovuta nthawi zonse kwa odwala omwe safuna kukumbutsidwa kuti ali ndi mano kapena mafelemu.

Kutsiliza

Chifukwa chake, musazengereze kufunsa za PEEK kuchokera kwa Bloomden Dental material supplier.