{"id":10,"date":"2024-04-03T23:12:53","date_gmt":"2024-04-03T20:12:53","guid":{"rendered":"https:\/\/sisu.ut.ee\/juureravi3\/33-crown-down-tehnika\/"},"modified":"2024-04-03T23:13:00","modified_gmt":"2024-04-03T20:13:00","slug":"33-crown-down-tehnika","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/juureravi3\/33-crown-down-tehnika\/","title":{"rendered":"3.4. Crown-down tehnika"},"content":{"rendered":"<p><em>Crown-down\u00a0<\/em>tehnikas teostatakse instrumenteerimine suuremast instrumendist v\u00e4iksemani.<\/p>\n<p>Kasutatakse nii n\u00e4puinstrumentide kui nikkeltitaanist roteeruvate instrumentide puhul, et v\u00e4hendada instrumentide pingeid kanalis. Oluline on j\u00e4lgida preparatsiooni ja instrumentide ohutusn\u00f5udeid.<\/p>\n<p>Juurekanali preparatsiooni alustatakse instrumendiga, mis on suurima tipudiameetriga v\u00f5i koonilisusega. Instrument prepareerib kanalit koronaalosas. J\u00e4rgnev kasutatav instrument on koonilisuselt v\u00f5i tipudiameetrilt v\u00e4iksem ning t\u00f6\u00f6tab veidi apikaalsemal jne. Sellisel meetodil t\u00f6\u00f6tab vaid v\u00e4ike osa instrumendist ja preparatsioon on ohutum.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"165\" height=\"247\" class=\"alignnone wp-image-29\" style=\"float: right;margin-left: 5px;margin-right: 5px\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/36\/lk8.png\" title=\"lk8.png\" alt=\"lk8.png\"><\/p>\n<p>Kuna seda tehnikat kasutatakse p\u00f5hiliselt roteeruvate nikkeltitaanist instrumente kasutades, siis t\u00e4psem \u00fclevaade sellest tehnikast on antud \u00f5piobjektis \u201c<a href=\"http:\/\/sisu.ut.ee\/juureravi5\" target=\"_blank\" rel=\"noopener\">Hammaste juurekanalite preparatsioon nikkeltitaanist instrumente kasutades<\/a>\u201c.<\/p>\n<p><em>Pildil on skemaatiliselt kujutatud crown-down preparatsioonimeetodi p\u00f5him\u00f5te. Koronaalne kolmandik kujundatakse esmaselt suure koonilisusega instrumendiga. Keskmise kolmandiku kujundamisel kasutatakse v\u00e4hem koonilisemat instrumenti ning tipukolmandik viimistletakse viimasena. Preparatsiooni k\u00e4igus ei suruta infitseerunud kude \u00fcle juuretipu, prepareerivast instrumendist t\u00f6\u00f6tab vaid v\u00e4ike osa ning juurekanali kujundamine on ohutum.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Crown-down\u00a0tehnikas teostatakse instrumenteerimine suuremast instrumendist v\u00e4iksemani. Kasutatakse nii n\u00e4puinstrumentide kui nikkeltitaanist roteeruvate instrumentide puhul, et v\u00e4hendada instrumentide pingeid kanalis. Oluline on j\u00e4lgida preparatsiooni ja instrumentide ohutusn\u00f5udeid. Juurekanali preparatsiooni alustatakse instrumendiga, mis on suurima tipudiameetriga v\u00f5i koonilisusega. Instrument prepareerib kanalit koronaalosas. &#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\/juureravi3\/wp-json\/wp\/v2\/pages\/10","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sisu.ut.ee\/juureravi3\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sisu.ut.ee\/juureravi3\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/juureravi3\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/juureravi3\/wp-json\/wp\/v2\/comments?post=10"}],"version-history":[{"count":1,"href":"https:\/\/sisu.ut.ee\/juureravi3\/wp-json\/wp\/v2\/pages\/10\/revisions"}],"predecessor-version":[{"id":99,"href":"https:\/\/sisu.ut.ee\/juureravi3\/wp-json\/wp\/v2\/pages\/10\/revisions\/99"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/juureravi3\/wp-json\/wp\/v2\/media?parent=10"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}