Kwigophe of Spee - yintoni na le nto?

Yintoni na igophe ka Spee. Ukuze siphendule lo mbuzo, kufuneka ufumanise konke malunga occlusion.

Yintoni occlusion?

Occlusion ndingabizi zoqhagamshelwano ezisezantsi nemihlathi aphezulu. Ingcamango yanamhlanje yekota iquka intsebenziswano ye ukuhlafuna izihlunu, amazinyo, temporomandibular ngokudibeneyo kwekhono, kunye nemisebenzi. Umphezulu occlusal kwamazinyo yendalo kuqwalaselwa njengenxalenye umphezulu izinyo ukusuka phezulu ukuya kwiindawo tubercle central fissure zinzulu. Lubonakala yi iimpawu yokwakheka ukuba zemfuza malilungiselelwe umsebenzi ukuhlafuna ukutya.

Elements of bomhlaba occlusal

Iziqalelo zilandelayo kwi imiphezulu occlusal: zeendawana hillocks iziciko zabo, yaye ngakumbi central fissure, nelamaxandeka, libe sisigingqi ongasempumalanga lithintele itafile occlusal, imitha izileyi amaqhuma ezibunxantathu, emikhulu. Ngu fissure engundoqo ejongene ezithambekileyo zangaphakathi cusps izinyo.

Ingcamango qela lwabafowunelwa inikwa imiqolo amazinyo ezikhoyo kwicala yabasebenzi kwi cusps buccal premolar, amazinyo canine, amazinyo izinyo kuquka emihlathini eliphezulu nengasezantsi. Ukulinganisela khipha icala abafowunelwa occlusal, yaye ezi tubercles efanayo palatal maxillary anxamnye esidleleni mandibular. Xa mandible uhamba phambili, cusps mesial buccal kwamathambeka kwezisezantsi verhnezubnym kwamathambeka distal isilayidi, kunye zeelwimi stingrays cusps icala distal ngamazinyo isilayidi phezu kumathambeka kwicala mesial kwamazinyo asezantsi.

Xa usenza kakhulu protrusive mandibular intshukumo Uphawu kwakheka kwi pad erasure verhnezubnyh tubercles udonga distal kunye kwesi nizhnezubnyh Bugorkova mesial nzima isicwili komhlaba kwi ezisezantsi siphume eliphezulu palatal vestibular komhlaba.

Yintoni na igophe ka Spee and Wilson? Kule kamva.

mu- ukutya njani?

Xa usenza iintshukumo osecaleni kwemihlathi lentendelezo ephantsi, nelamaxandeka kwicala elingaphandle cusps buccal le ezisezantsi amazinyo yesilayidi kwi kwicala yokusebenza kwamathambeka angaphakathi amazinyo aphezulu buccal, nokufakela iindawo lwangaphakathi nizhnezubnyh cusps zeelwimi Slide ezithambekileyo zangaphandle cusps palatal eliphezulu. Kufika ukusekwa igama elifanayo qhagamshelana cusps buccal of premolars kunye imihlathi.

Canines ukunika ukhuseleko kwezihlunu nzima kunye namazinyo periodontal ngomva kumaxhala kakhulu ngexesha ukuhlafuna, yaye ngenxa yoko, xa iibhulorho mveliso sinikele ingqalelo ngokukhethekileyo Ukuzinziswa afakelweyo ukuthintela ukwenzakala periodontal.

Xa nabo canines macala ngo occlusions osecaleni umthwalo uniform inikezelwe kwi TMJ, amazinyo, ukuhlafuna izihlunu kunye periodontium ngexesha ukuhlafuna. le yonke kwaye inika igophe of Spee.

Xa palatal (occlusal) Imiphezulu le siphume aphezulu kunye canines kunye mesial kwaye distal icala udini 2 unalo irola odibanisa tubercle yamazinyo wesithathu asezantsi yezinyo laso.

Phakathi koku kwaye yee-basecicini ngohlangothi ukusika libekwe palatal mqengqeleki ukuba vee median macala omabini. tubercle amazinyo ekuthiwa nxalenye liphambili izinyo, indawo apho abafowunelwa occlusal uthathe indawo. Oku ugobile enkulu imbuyekezo curve ka Spee.

IPalatine hillocks eliphezulu kunye namazinyo aphantsi ngomva buccal umnxeba reference njengoko ukuvelisa ukutya ityumza yaye nokumisela uhlobo iintshukumo kwinkalo occluding le mandible, kuquka ukwabiwa ukuvelisa imikhosi masticatory ukwenzela ukuba umthwalo esisiseko ngokuthatha ihlafuna axis kwamazinyo.

Kutheni Amathanga occlusion?

hillocks Buccal aphezulu kunye namazinyo aphantsi ngomva zeelwimi ngokuba zokhuselo ngaphandle kwenkxaso. Ewe kancinane ukunxibelelana kunye bachasene kwi occlusion engundoqo okanye, ngokutsho kwabanye ababhali, qhagamshelana loo angenako. Ezi umsebenzi izibambo ikhutshwa phandle division ukutya kunye indalo bachasene zabo kwamaxandeka wobuso sliding, ekhusela nemihlathi kunye nolwimi ngexesha ukuhlafuna kubo ekufumaneni phakathi kwamazinyo. Ukuqinisekisa intando kuyimfuneko igophe Spee ukuze ehlafuna eqhelekileyo ukutya.

Akukho ku- (point) uniform, abafowunelwa ezininzi ephikisanayo amazinyo kuFeliks occlusions ifomu ukuhlafuna umsebenzi eyenziwe zomzekelo of occlusion komhlaba. Kulo mzekelo, kunokwenzeka ukuba baphumeze inkqubo lokutya nawuphi guquki. Ukuhlafuna distribution xi lwenzeka ngaphaya axis ibhrashi yamazinyo, kunye umthwalo lincinane kakhulu periodontium, kunye nabafowunelwa kwindawo encinane kunciphisa erasure iinqwelomoya masticatory. Iinkcukacha kudala ehlola kunye hillocks uzinzo umhlathi elisezantsi kunye central occlusion siseko kwisingqusho ngesingqusho, kubandakanywa sikhubekiso zemfuduka emhlathini esezantsi yentsimi occlusal. Oku kunika egopheni of Spee (kwifoto ngezantsi, ungabona umelo yayo udandalaziso).

Ukuba amazinyo ezingekhoyo?

Xa engekho amazinyo, ngamanye ukulahleka komhlaba occlusal, kuba recovery zibe moya occlusal udlulayo amanqaku amathathu: eziphezulu yesibini imihlathi ephantsi (cusps zabo distal-buccal) kunye nendawo incisal. Lo moya isetyenziselwa ukuseka imodeli mandible ngendlela articulator, umz, nge balancer.

Occlusal kumphezulu amazinyo-moya oxwesileyo ayiqukethanga, yenza egopheni ulwalathiso sagittal: a phakathi kunye khaxa uyokutsho ngezantsi emhlathini eliphezulu. Loo egopheni ubizwa ngokuba kwigophe le Spee okanye igophe occlusal sagittal. Yena uyinxalenye isangqa ise malunga embindini komzila iziko ogama.

Le Spee curve langutana ngakumbi?

Kwakhona, ngokutsho Spee, abaphandi kunye Practice, occlusal igophe ichazwa ngokupheleleyo indlela articular, ekubeni, kunye negophe yeseti amazinyo ezenziwa radius mnye, kwaye ngokufanelekileyo, amazinyo kunye nentloko articular isilayidi phezu umtya omnye phambili kwaye ayanyuka kwithambeka articular umendo, nefanayo ngaphezulu igophe occlusal phakathi. nokucingela enjalo eyenziwe zizazinzulu nazo izikhalazo ezininzi. Ezinye iinzululwazi athi occlusal igophe ayikwazi kubizwa Zinjengeqhezu kwisangqa. Xa nokuqhubekeka kwigophe sagittal ka Spee kaninzi iya ngasentla okanye ngezantsi indlela edibeneyo, yaye iziko yayo ayikho usikrobana emehlweni.

Kutheni kukho imfuneko kwi kwigophe sagittal of occlusion?

Xa intshukumo mandibular phambili Vered nokuya phantsi intloko ezidityanelweyo slip kwi kwithambeka tubercle articular. Ngako oko, imihlathi ephantsi uvikivwa phantsi (inxalenye) kwaye yenza dehiscence kummandla ngomva phakathi kwemiqolo kwamazinyo. Iinkcukacha amaqhuma lateral kunokwenzeka kuphela amazinyo xa kumgca sagittal ilahlwa ukuhlafuna phezu amazinyo. Emva le mfundiso, kuthiwa occlusal ngqo imbuyekezo curve.

Le radius wagqiba iisentimitha 5,8-21,2, ixabiso avareji -. 6.5-8.5 cm zinzulu indawo occlusal igophe - tubercle mesial le izinyo esezantsi kuqala.

Eli nqaku ichazwe ngokwenkcukacha igophe of Spee.