{"id":152,"date":"2024-03-03T15:28:36","date_gmt":"2024-03-03T15:28:36","guid":{"rendered":"https:\/\/ekitap.ankara.edu.tr\/dentures\/chapter\/okluzal-tirnak-ve-kanin-uzantisi\/"},"modified":"2025-09-10T10:46:25","modified_gmt":"2025-09-10T10:46:25","slug":"okluzal-tirnak-ve-kanin-uzantisi","status":"publish","type":"chapter","link":"https:\/\/ekitap.ankara.edu.tr\/dentures\/chapter\/okluzal-tirnak-ve-kanin-uzantisi\/","title":{"raw":"Canine extensions from occlusal rests","rendered":"Canine extensions from occlusal rests"},"content":{"raw":"A finger extension from the premolar rest placed on the lingual slope of the adjacent canine tooth increase the lever arm against the fulcrum line and serve as an effective indirect retainer (Figure 4-4).\r\n\r\n&nbsp;\r\n\r\n[caption id=\"attachment_151\" align=\"alignnone\" width=\"300\"]<a href=\"http:\/\/ekitap.ankara.edu.tr\/hareketli-bolumlu-protezler\/wp-content\/uploads\/sites\/25\/2024\/03\/4-4.jpg\"><img class=\"wp-image-151 size-medium\" src=\"http:\/\/ekitap.ankara.edu.tr\/dentures\/wp-content\/uploads\/sites\/29\/2024\/03\/4-4-300x204.jpg\" alt=\"Figure 4-4. The indirect retainer in the form of a canine extension is used in conjunction with a mesio-occlusal rest on the mesial marginal ridge of the first premolar.\" width=\"300\" height=\"204\" \/><\/a> <strong>Figure 4-4<\/strong>. The indirect retainer in the form of a canine extension is used in conjunction with a mesio-occlusal rest on the mesial marginal ridge of the first premolar.[\/caption]\r\n\r\nAlthough canine extensions are placed into prepared surfaces, they are used in conjunction with occlusal rests on the mesial marginal ridge of the first premolars. This combined use significantly reduces the tipping forces on the canine teeth.\r\n\r\nThis method is particularly applicable when a first premolar must serve as a primary abutment. The distance anterior to the fulcrum line is only the distance between the mesioocclusal rest and the anterior terminal of the finger extension.","rendered":"<p>A finger extension from the premolar rest placed on the lingual slope of the adjacent canine tooth increase the lever arm against the fulcrum line and serve as an effective indirect retainer (Figure 4-4).<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_151\" aria-describedby=\"caption-attachment-151\" style=\"width: 300px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/ekitap.ankara.edu.tr\/hareketli-bolumlu-protezler\/wp-content\/uploads\/sites\/25\/2024\/03\/4-4.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-151 size-medium\" src=\"http:\/\/ekitap.ankara.edu.tr\/dentures\/wp-content\/uploads\/sites\/29\/2024\/03\/4-4-300x204.jpg\" alt=\"Figure 4-4. The indirect retainer in the form of a canine extension is used in conjunction with a mesio-occlusal rest on the mesial marginal ridge of the first premolar.\" width=\"300\" height=\"204\" srcset=\"https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-content\/uploads\/sites\/29\/2024\/03\/4-4-300x204.jpg 300w, https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-content\/uploads\/sites\/29\/2024\/03\/4-4-768x521.jpg 768w, https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-content\/uploads\/sites\/29\/2024\/03\/4-4-65x44.jpg 65w, https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-content\/uploads\/sites\/29\/2024\/03\/4-4-225x153.jpg 225w, https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-content\/uploads\/sites\/29\/2024\/03\/4-4-350x237.jpg 350w, https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-content\/uploads\/sites\/29\/2024\/03\/4-4.jpg 880w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-151\" class=\"wp-caption-text\"><strong>Figure 4-4<\/strong>. The indirect retainer in the form of a canine extension is used in conjunction with a mesio-occlusal rest on the mesial marginal ridge of the first premolar.<\/figcaption><\/figure>\n<p>Although canine extensions are placed into prepared surfaces, they are used in conjunction with occlusal rests on the mesial marginal ridge of the first premolars. This combined use significantly reduces the tipping forces on the canine teeth.<\/p>\n<p>This method is particularly applicable when a first premolar must serve as a primary abutment. The distance anterior to the fulcrum line is only the distance between the mesioocclusal rest and the anterior terminal of the finger extension.<\/p>\n","protected":false},"author":3,"menu_order":2,"template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-152","chapter","type-chapter","status-publish","hentry"],"part":147,"_links":{"self":[{"href":"https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-json\/pressbooks\/v2\/chapters\/152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-json\/wp\/v2\/users\/3"}],"version-history":[{"count":8,"href":"https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-json\/pressbooks\/v2\/chapters\/152\/revisions"}],"predecessor-version":[{"id":1485,"href":"https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-json\/pressbooks\/v2\/chapters\/152\/revisions\/1485"}],"part":[{"href":"https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-json\/pressbooks\/v2\/parts\/147"}],"metadata":[{"href":"https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-json\/pressbooks\/v2\/chapters\/152\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-json\/wp\/v2\/media?parent=152"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-json\/pressbooks\/v2\/chapter-type?post=152"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-json\/wp\/v2\/contributor?post=152"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/ekitap.ankara.edu.tr\/dentures\/wp-json\/wp\/v2\/license?post=152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}