Gutta-percha pins nyob rau hauv kev kho hniav: ib tug yees duab, ib tug piav qhia ntawm

Kev Kho Hniav teeb meem yuav ua tau ntawm ib tug cov xwm sib txawv, thiab txoj kev los daws kom tau lawv, muaj ntau ntau yam. Yog li ntawd, gutta-percha pins yuav pab tau nyob rau hauv kev tswj cov hniav raug rau puas, ntxiv dag zog rau cov hauv paus hniav thiab yog li muab lub sij hawm tsis kam tshem tawm.

Yuav ua li cas yog cov pins?

Hniav puas tsuaj ntau yam yog vim li cas: caries, tsis raws kev cai nrog kev tu cev, metabolic mob, txom nyem noj haus, neeg kho tshuab kev raug mob thiab tawg. Puas hniav yog tsis tas muab tshem tawm, nws yuav tsum tau rov qab. Txawm hais tias muaj tsuas yog lub hauv paus, muaj yog ib txoj kev los nws - kho hniav pins. Qhov no tsim, uas yog ib tug pas nrig, tsau nyob rau hauv lub hauv paus canals thiab txhawb txum tim rov qab hniav. Muaj mob thaum lub installation ntawm tus pin - qhov no yog tsuas tau cov kua. Indications rau kev siv:

• crown ntawm tus hniav yog muab los ntawm 50% los yog ntau tshaj,
• hniav yog tag pov tseg, tab sis tseem tag nrho cov hauv paus hniav,
• tus pin raws li ib tug them nyiaj yug rau ib tug crown los yog lwm hom tshem thiab tsau prostheses.

Lub pin yog zoo li nyob rau hauv lub cev thiab lub hom phiaj ntawm lub cog. Nov yog lub cog hniav yog ntsia tau rau hauv cov pos hniav thiab lub puab tsaig pob txha thiab tus pin - nyob rau hauv hauv paus canals. Rau lub chaw ua khoom ntawm lub pins yog siv ntau yam ntawv uas siv: hlau, tej hub, fiberglass, uglerodovolokno. Rau yav dhau los xyoo pua siv gutta-percha pins, uas tseem tsis tau poob nws qhov tseeb.

Gutta-percha raws li ib tug khoom siv rau lub pins

Gutta-percha yog tau los ntawm cov zauv cov yas latex. Qhov no cov ntaub ntawv uas yog ib cov khoom, tab sis yas, zoo meej rau kev sib khi hauv paus canals. Sov siab, qhov loj yuav mos mos thiab malleable, nws nyob tsis tau tsuas yog rau lub hauv paus channel, tab sis kuj nws ceg, siab kaw nqe vaj lug kub. Kev kho mob ntawm no kis tau sai sai thiab muaj tsawg heev uas yuav muaj teeb meem. Uas twb muaj lawm ntaub ntawv ntawm gutta - alpha thiab beta. Pins gutta-percha yog ua mas ntawm lub beta daim ntawv: nws muaj ib tug haum taub hau.

Zoo thiab tsis zoo ntawm cov gutta percha

Nyob rau hauv tas li ntawd rau nws cov pliable, yas pwm, yooj yim uas mus kiag li sau lub hauv paus kwj dej, lub gutta percha muaj ob peb zoo.

• Nws yog zoo biologically tshaj ntaub so ntswg ntawm tus hniav.
• Robust thiab nyob rau tib lub sij hawm elasticity.
• Cov khoom yog non-toxic thiab hypoallergenic.
• Thaum hardening yuav siv sij hawm zoo lawm.
• Nrog ntev-lub sij hawm coj tsis erased, tsis absorbed thiab tsis cev qhuav dej.
• Nws yog ua tau kom tshem tawm cov ntaub ntawv uas los ntawm lub hauv paus kwj dej, yog hais tias nws yuav tsim nyog.
• Tus nqi pheej yig.
• Nyob rau hauv X-ray tau siab saib cov gutta-percha pin, yees duab qhia tag nrho raws ntawm ceg, uas tus kws kho hniav ntsuam xyuas cov kev tshwm sim ntawm kev kho mob thiab kho-ncua.

Tsis devoid ntawm gutta-percha pins thiab disadvantages:

• Gutta-percha twb tsis muaj adhesion rau ib qho nyuaj hniav cov ntaub so ntswg.
• Muaj muaj bactericidal zog.
• Nws yog ib qhov nyuaj mus nrhiav kom tau vim hais tias ntawm lub high school ductility. Nyob rau hauv tau txais ib tug zoo tshwm sim plays ib qho tseem ceeb luag hauj lwm kev kws kho mob.

Nta gutta percha

Gutta percha nyob rau hauv kev kho hniav txawv nyob rau hauv loj, muaj loj thiab me me. Lawv muaj ib tug tshwj xeeb tooj uas hais tias tus thickness. Los ntawm cov hniav thiab channel xeev tus kws kho hniav thiab txiav txim seb dab tsi loj thiab thickness ntawm lub pin siv nyob rau hauv ib tug cov ntaub ntawv.

Tsis tas li ntawd, lawv muab faib ua txheej txheem thiab cov uas tsis yog-tus qauv. Ib txhia yog ua raws li ISO (International Organization rau standardization), lwm leej lwm tus txawv nyob rau hauv zoo - lawv yog cov thicker thiab luv luv, nrog ib tug roj taub.

Gutta-percha pins los ntawm 20% muaj beta-percha. Feem ntau ntawm hais txog 75% ntawm lub hauv paus pin ua los ntawm zinc oxide. Qhov seem 5% - qhov no koom haum pab khoom xyaw: dyes, plasticizers, raws li zoo raws li ib tug tshuaj los ntawm kev uas lub pin yog kom meej meej pom nyob rau hauv lub radiograph.

kev sib khi txoj kev. txias gutta-percha

Lub pins siv rau lub gutta-percha filling ntawm lub hauv paus canals nrog rau kev siv ntawm ob hom ntawm technologies - ua hauj lwm ua kub los yog txias khoom. Thaum kub filling nrog rau cov khoom yog thawj rhuab thiab ces muab tso rau hauv nws channel. Nyob rau hauv txias gutta-percha rhuab tom qab nws tab ntawm lub hauv paus.

Sealing txias gutta percha, nyob rau hauv lem, yuav tsum tau ua nyob rau hauv plaub txoj kev:

• Muaj ib tug pin. Siv nyob rau hauv nrog ib tug tshwj xeeb muab tshuaj txhuam, uas muaj ntau yam cov kws kho hniav xav kom muab tus raws. Thaum zoo li no yog thov mus rau lub channel phab ntsa thiab lub muab tshuaj txhuam yog tswvcuab coj mus rau qhov loj ntawm lub nawj, tom qab uas qhov tshaj feem ntawd txiav kub lub cuab tam. Vim hais tias cov gutta-percha yog siv nyob rau hauv txias, nws yog khoom, thiab nws penetrates mus rau hauv tus hniav channel, lub tom kawg ua hauj lwm pab sau cov tshuaj txhuam.
• Txoj kev ntawm sab hws. Lub pins yog muab tso rau hauv lub raws li ntev raws li tsis tau kiag li nyob qhov chaw. Tsis muaj ib tug ntau ntawm cov kev txawj thiab kev ntawm cov kws kho hniav yuav tsis ua li cas, txij li thaum lub puas tab pins yuav tshwm sim hauv paus puas.
• Thermomechanical hws. Cov txheej txheem yog siv heev tsis tshua muaj ntau tsis zoo. Yuav kom sau cov channel pins siv ib yam mechanism uas tsis tau lees tias ib tug zoo tshwm sim, li ntawd, yuav muaj kev puas tsuaj rau tus raws.
• Sealing gutta softened los ntawm qhov kev txiav txim ntawm cov tshuaj. Yav tas los, qhov no txoj kev twb tau muab siv nyob rau hauv kev kho hniav, tab sis tam sim no tsis nco qab txog nws, vim hais tias nws muaj ib tug ntau ntawm cov shortcomings.

kub gutta-percha

Yuav ua li cas yog ib tug "kub" gutta percha? Qhov kev piav qhia ntawm no txoj kev yog ntxaws hauv qab no. Nco ntsoov tias kev xaiv xws kev kho mob plaub:

• Txhaj txoj kev. Cov ntaub ntawv uas twb rhuab mus 200 degrees, uas ua rau yus nws kua hauv lub xeev, thiab yog nkag tau rau hauv lub channel. Qhov no txoj kev ua rau nws ua tau rau kiag li sau tag nrho cov xyaum thiab ceg. Cov txheej txheem yog dav siv nyob rau hauv kev kho hniav.
• "Thermo" system. Niaj hnub nimno cov txheej txheem tso cai ceev thiab kaw tag nrho cov channel ub nyob rau slightest siab, txawm lub me tshaj. Gutta-percha nyob rau hauv cov kua daim ntawv yog noj nyob rau hauv siab los ntawm lub yas pas nrig. Qhov no yog tseem hu ua ntim.
• Vertical hws. Nws muab ib tug ua tiav channel sam xeeb, tab sis qhov no txoj kev - ib tug yooj yim thiab laborious, lub sij hawm-siv.
• Pub khoom ntawm syringe. ib tug yooj yim thiab ceev ceev txoj kev, tab sis nws tsis lees tias tag nrho filling, Ntxiv, gutta-percha yuav tsis txawm txog rau thaum xaus ntawm cov channel, uas tom qab ua teeb meem.