Gutta-percha izikhonkwane amazinyo: isithombe, incazelo

izinkinga zamazinyo kungaba yinto ehlukile, nezindlela ukuzixazulula, kunezindlela eziningi. Ngakho, Gutta-percha izikhonkwane kungasiza ekugcineni izinyo ekuthonyweni ukwa, ukuqinisa impande futhi ngaleyo ndlela ukunikeza ithuba nokuqoqwa kukadoti.

Yiziphi izikhonkwane?

Amazinyo ubhujiswe ngenxa yezizathu ezihlukahlukene: caries, okungezona ukuhambisana inhlanzeko, iziyaluyalu umzimba, kungabi nekudla lokondla umtimba, ukulimala mechanical aqhephukile. izinyo esonakele akukhona ngempela zisuswe, ingabuyiswa. Ngisho noma kwakukhona kuphela impande, kukhona indlela uyibuyisele - izikhonkwane kwamazinyo. Lo mklamo, okuyinto nenduku, ilungiswe imiselekazi impande futhi isekela izinyo abuyiselwe. Kukhona amacala lapho ukufakwa pin - lesi isixazululo kungenzeka kuphela. Izinkomba ukusetshenziswa:

• Umqhele wabahlakaniphile izinyo libhujiswa ngo-50% noma ngaphezulu,
• izinyo libhujiswa ngokuphelele, kodwa uhlala wonke impande,
• pin njengozime umqhele noma olunye uhlobo lwesitsha lokufakelwa kwezitho esikhiphekayo futhi isilungisiwe.

Iphikhodi kufana yobujamo injongo nolwelwesi. Yilokho nje izimila ezifakiwe ezinsinini kanye nemihlathi amathambo iphini - e impande emiseleni. Ukuze womshini izikhonkwane zisetshenziselwa izinto ezihlukahlukene: metal, ngobumba, fiberglass, uglerodovolokno. Ukuze namashumi amahlanu eminyaka adlule esetshenziswa Gutta-percha izikhonkwane, okuyinto namanje akalilahlile ngokuhlathulula ukusebenza kwawo.

Gutta-percha njengoba material for izikhonkwane

Gutta-percha is etholwe kucutshungulwa latex. Lokhu kwaziswa kuyinto okuqinile, kodwa plastic, ephelele uphawu impande emiseleni. Emazingeni aphezulu, i-mass iba ezithambile nabalolongeka, ugcwalisa hhayi kuphela isiteshi isizinda, kodwa futhi emagatsheni awo, ukuvala ngokugcwele amavesi. Ukwelashwa lokhu sihamba ngokushesha futhi ingozi sakugcina ukuxakeka. amafomu akhona Gutta - alpha ne-beta. Izikhonkwane Gutta-percha senziwa ikakhulu yefomu beta: it has a ukungaguquguquki efanelekayo.

Emihle nemibi Gutta percha

Ngaphezu pliable, ngenkani efolomeni lalo plastic, okuvumela kalula ukuba ugcwalise umsele impande, percha Gutta kunezinzuzo eziningana.

• Kuyinto kahle eziphila iyahambisana izicubu izinyo.
• Kukhulumisana kahle nesive kanye ngesikhathi esifanayo kuyaqina.
• Indaba-non-enobuthi futhi hypoallergenic.
• Lapho lukhuni usunawo.
• Nge bafake yesikhathi eside akuyona kusulwe, hhayi wakwamukela futhi asisho collapse.
• Kungenzeka ukususa izinto kusukela umsele impande, uma kuba nesidingo.
• intengo imali.
• Ku-X-ray ungakwazi ngokugcwele ukubona iphini Gutta-percha, isithombe ekhombisa zonke iziteshi amagatsha, okuvumela wamazinyo ukuhlola imiphumela zokwelashwa kanye ukulungisa kwamaphutha lapho kudingeka.

Olungenayo Gutta-percha izikhonkwane nemibi:

• Gutta-percha ayinakho adhesion ukuba kanzima izinyo izicubu.
• Kube anezakhi amagciwane.
• Kunzima ukusungula ngenxa ductility okusezingeni eliphezulu. Ekutholeni umphumela omuhle ufeza indima udokotela onguchwepheshe ezibalulekile.

Izici Gutta percha

Gutta percha amazinyo ayahluka ngobukhulu, kukhona ezinkulu nezincane. Sinenkosi eziningana ezikhethekile ukuthi kubonisa ukushuba. Ngu izinyo kanye nesimo isiteshi wamazinyo onqumayo ukuthi ubukhulu kanye ukushuba iphini esetshenziswa endabeni ethile.

Futhi, bona zihlukaniswe ejwayelekile futhi okungezona ezijwayelekile. Ezinye zenziwe ngokuvumelana ISO (International Organization for Standardization), abanye kuhluke ukuma - bona makhula futhi mfushane, nge ithiphu ayisesemikhulu.

Gutta-percha izikhonkwane ngama-20% aqukethe beta-percha. Iningi labantu abangaba ngu-75% base-pin wenza zinc oxide. Labo abasele abanga-5% - lokhu izithako asizayo: udayi, plasticizers, kanye into okuyothi iphini iyabonakala ngokusobala radiograph.

uphawu izindlela. abandayo Gutta-percha

Izikhonkwane ezisetshenziselwa ukugcwaliswa Gutta-percha ka imiselekazi impande nokusetshenziswa ezimbili izinhlobo ubuchwepheshe - umsebenzi owawenziwa impahla kushisa noma kubanda. Ngezinye ukugcwaliswa wavutha okokusebenza lokuqala evuthayo bese afakwe isiteshi salo. Ngo abandayo Gutta-percha ukufuthelana emva ithebhu yawo empandeni.

abandayo Gutta percha uphawu, esikhundleni salokho, engenziwa ngezindlela ezine:

• Nomunye pin. Isetshenziswa ngesikhathi esifanayo ne unama ekhethekile, okuyinto bamazinyo abaningi bakhetha bonyana batshidze iziteshi. Uma lokhu sisetshenziswa odongeni wesiteshi unama is kwalethela elihambisana ubukhulu pin, ngemva kwalokho ingxenye ngokweqile yalo usike ithuluzi ashisayo. Ngoba Gutta-percha isetshenziswa abandayo, luqine, futhi lingena singene isiteshi izinyo, lona wamuva ukhonza ukugcwalisa unama.
• Izindlela ukufingqa lateral. Nezikhonkwane ezibekwe kule ziteshi kuphela nje ngeke zithathe ngokuphelele isikhala. Ngaphandle eziningi amakhono kanye nesipiliyoni of the wamazinyo Awukwazi ukwenza, kusukela engaphelele ithebhu izikhonkwane engenzeka impande ukwa.
• ukufingqa Thermomechanical. Le nqubo isetshenziswa ngempela akuvamile has bokwenza eziningi. Ukuze agcwalise izikhonkwane isiteshi isebenzisa indlela ujikelezisa ukuthi akuqinisekisi yalokho okuhle, basengozini enkulu ngakho umonakalo kuziteshi.
• Uphawu Gutta sashintsha ngenxa yesenzo amakhemikhali. Ngaphambili, le ndlela iye yasetshenziswa amazinyo, kodwa manje ukukhohlwa ngakho, ngoba has a lot of amaphutha.

hot Gutta-percha

Siyini "hot" Gutta percha? Incazelo le ndlela zi. Qaphela ukuthi izinketho ezifana ukwelashwa ezine:

• Umjovo indlela. Indaba sishisiswe degrees 200, okuholela esimweni saso ketshezi, futhi busuka siteshi. Le ndlela yenza kube lula ugcwalise zonke uhamba kanye amagatsha. Le nqubo ibizwa kabanzi amazinyo.
• "Thermo" uhlelo. amasu zanamuhla zisenza kuyashesha futhi uvale wonke ompompi nesiteshi umzamo kancane, ngisho nomncane. Gutta-percha ewuketshezi sidla ngaphansi kwengcindezi ngokusebenzisa induku plastic. Le ndlela ubizwa nangokuthi ivolumu.
• ukufingqa okumile. Linikeza isiteshi ubuqotho ngokuphelele, kodwa le nqubo - nzima futhi kukhathaza, isikhathi-ukudliwa.
• Okuphakelayo impahla nge isipetu. indlela elula okusheshayo, kodwa akuqinisekisi ukugcwaliswa ephelele, ngaphezu kwalokho, Gutta-percha awukwazi ngisho ufike ekugcineni isiteshi, kamuva kubangele izinkinga.