{"id":10,"date":"2024-04-03T23:13:55","date_gmt":"2024-04-03T20:13:55","guid":{"rendered":"https:\/\/sisu.ut.ee\/juureravi5\/5-nikkeltitaanist-napuinstrumendid\/"},"modified":"2024-04-09T10:09:09","modified_gmt":"2024-04-09T07:09:09","slug":"5-nikkeltitaanist-napuinstrumendid","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/juureravi5\/5-nikkeltitaanist-napuinstrumendid\/","title":{"rendered":"5. Nikkeltitaanist n\u00e4puinstrumendid"},"content":{"rendered":"<p><span style=\"line-height: 1.6em;\">N\u00e4puinstrumentidega saab prepareerides samav\u00e4\u00e4rse tulemuse kui roteeruvate nikkeltitaanist instrumentidega. Preparatsioon v\u00f5tab k\u00fcll kauem aega, kuid sel puhul esineb v\u00e4hem instrumendi murde, tekib v\u00e4hem apikaalseid transportatsioone ja t\u00f6\u00f6pikkuse l\u00fchenemist. Manuaalne tunnetus on parem just keerukate kanalite preparatsioonil.<\/span><\/p>\n<p>N\u00e4puviilidest on efektiivsed nikkeltitaanist K-viilid. Neid jaotatakse ISO standardi alusel. Nende koonilisus on enamasti 2% ning t\u00f6\u00f6tava osa pikkuseks 16mm. Instrumendil on t\u00f6mp tipp ja tasandatud keermed. Instrument on v\u00e4ga painduv ning on efektiivne kasutada j\u00e4rsu kurvatuuriga juurekanalite tipuosa preparatsioonil. Instrumenti saab eelpainutada vaid t\u00f5sise \u00fclepainutamisega, kuid see tekitab materjalis tugeva pinge ning painutada tuleb v\u00e4ga hoolikalt. V\u00e4iksemad viilid (kuni #25) on piiratud kasutuskordadeks.<\/p>\n<p><strong>N\u00e4ide:<\/strong><\/p>\n<ul>\n<li><em style=\"line-height: 1.6em;\">NiTi-Flex<\/em><span style=\"line-height: 1.6em;\"> (Dentsply Maillefer, Bellaigues, \u0160veits)<\/span><\/li>\n<\/ul>\n<p>Osadel nikkeltitaanist roteeruvatel instrumendis\u00fcsteemidel on olemas ka samav\u00e4\u00e4rsed n\u00e4puinstrumendid. Instrumentidel on samad disainielemendid kui vastava s\u00fcsteemi roteeruvatel instrumentidel. Nendega t\u00f6\u00f6tlemine tagab juurekanali koonilisuse vastavalt instrumendile ning preparatsioon kulgeb sarnaselt juurekanali originaalkujule. On leitud, et keerukamate juurekanalite preparatsioonil pole tiput\u00f6\u00f6tlusel soovitatav kasutada n\u00e4puinstrumente suurema koonilisusega kui #.04, kuna need v\u00f5ivad tekitada liivakellakujulise preparatsiooni (t\u00e4psem info preparatsioonivigade kohta \u00f5piobjektist \u201eHammaste juurekanalite tipuanatoomia ja apikaalne preparatsioon\u201d)<\/p>\n<p><strong>N\u00e4ide:\u00a0\u00a0<\/strong><\/p>\n<ul>\n<li><em style=\"line-height: 1.6em;\">ProTaper<\/em><span style=\"line-height: 1.6em;\"> n\u00e4puinstrumendid (Dentsply Maillefer, Bellaigues, \u0160veits)<\/span><\/li>\n<li><span style=\"line-height: 1.6em;\">GT n\u00e4puinstrumendid (Dentsply Tulsa Dental, USA)<\/span><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"335\" class=\"alignnone wp-image-39 aligncenter\" style=\"margin-left: auto; margin-right: auto;\" title=\"5-1.png\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/43\/5-1.png\" alt=\"5-1.png\" srcset=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/43\/5-1.png 500w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/43\/5-1-300x201.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\"><\/p>\n<p style=\"text-align: center;\"><em><a style=\"line-height: 1.6em;\" href=\"http:\/\/www.ebay.com\/itm\/One-Pack-Dental-Dentsply-Univeral-Hand-Use-Files-Endo-Niti-Protaper-Files-25MM-\/390591620032?pt=AU_Business_Industrial_Medical_Scientific_Equipment2&amp;hash=item5af11323c0\">http:\/\/www.ebay.com\/itm\/One-Pack-Dental-Dentsply-Univeral-Hand-Use-Files-Endo-Niti-Protaper-Files-25MM-\/390591620032?pt=AU_Business_Industrial_Medical_Scientific_Equipment2&amp;hash=item5af11323c0<\/a><\/em><\/p>\n<p><span style=\"line-height: 1.6em;\">N\u00e4puinstrumentidega saab edukalt kasutada tasakaalustatud j\u00f5udude tehnikat. Selle tehnika eelisteks on t\u00e4pne tipukontroll (instrument ei l\u00e4he \u00fcle t\u00f6\u00f6pikkuse), instrument paikneb juurekanalis tsentreeritult ning puudub eelpainutuse vajadus. Apikaalsele surutud preparatsiooniprahti on v\u00e4hem kui teiste tehnikatega ning juurekanal on puhtam preparatsioonij\u00e4rgselt. Samas on preparatsioon aegan\u00f5udvam kui masininstrumentidega teostatu. Tasakaalustatud j\u00f5udude tehnika puhul tuleb arvesse v\u00f5tta, et n\u00e4puinstrumentidel on oht v\u00e4\u00e4ndemurdudeks suurem kui masininstrumentidel.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>N\u00e4puinstrumentidega saab prepareerides samav\u00e4\u00e4rse tulemuse kui roteeruvate nikkeltitaanist instrumentidega. Preparatsioon v\u00f5tab k\u00fcll kauem aega, kuid sel puhul esineb v\u00e4hem instrumendi murde, tekib v\u00e4hem apikaalseid transportatsioone ja t\u00f6\u00f6pikkuse l\u00fchenemist. Manuaalne tunnetus on parem just keerukate kanalite preparatsioonil. N\u00e4puviilidest on efektiivsed nikkeltitaanist &#8230;<\/p>\n","protected":false},"author":12,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-10","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sisu.ut.ee\/juureravi5\/wp-json\/wp\/v2\/pages\/10","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sisu.ut.ee\/juureravi5\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sisu.ut.ee\/juureravi5\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/juureravi5\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/juureravi5\/wp-json\/wp\/v2\/comments?post=10"}],"version-history":[{"count":2,"href":"https:\/\/sisu.ut.ee\/juureravi5\/wp-json\/wp\/v2\/pages\/10\/revisions"}],"predecessor-version":[{"id":96,"href":"https:\/\/sisu.ut.ee\/juureravi5\/wp-json\/wp\/v2\/pages\/10\/revisions\/96"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/juureravi5\/wp-json\/wp\/v2\/media?parent=10"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}