{"id":280,"date":"2024-03-02T21:16:59","date_gmt":"2024-03-02T21:16:59","guid":{"rendered":"https:\/\/ekitap.ankara.edu.tr\/hareketli-bolumlu-protezler\/?post_type=chapter&p=280"},"modified":"2024-03-02T21:26:10","modified_gmt":"2024-03-02T21:26:10","slug":"krosenin-fonksiyonel-elemanlari","status":"publish","type":"chapter","link":"https:\/\/ekitap.ankara.edu.tr\/hareketli-bolumlu-protezler\/chapter\/krosenin-fonksiyonel-elemanlari\/","title":{"raw":"Kro\u015fenin Fonksiyonel Elemanlar\u0131","rendered":"Kro\u015fenin Fonksiyonel Elemanlar\u0131"},"content":{"raw":"Destek di\u015fler \u00fczerine yerle\u015ftirilen kro\u015feler, b\u00f6l\u00fcml\u00fc protezin tutuculu\u011funu sa\u011flamak \u00fcze\u00adre \u00e7al\u0131\u015fan birimleri olarak bilinse de, \u00e7e\u015fitli b\u00f6l\u00fcmleri sayesinde di\u011fer baz\u0131 fonksiyonlara da sahiptirler. Fonksiyon a\u00e7\u0131s\u0131ndan, kro\u015fe iki kol (tutucu ve stabilizasyon), bir t\u0131rnak ve bir min\u00f6r ba\u011flay\u0131c\u0131dan olu\u015fur. Min\u00f6r ba\u011flay\u0131c\u0131 g\u00f6vde k\u0131sm\u0131d\u0131r. Bar ve di\u015feti kro\u015felerinin tutucu kollar\u0131n\u0131 metal alt yap\u0131ya ba\u011flayan min\u00f6r ba\u011flay\u0131c\u0131 \u201cyakla\u015fan kol\u201d olarak bilinir (\u015eekil 3-1).\r\n\r\n[caption id=\"attachment_281\" align=\"alignnone\" width=\"300\"]\"\u015eekil<\/a> \u015eekil 3-1.<\/strong> Kro\u015fenin bile\u015fenleri: a)<\/strong> Proteze destek olu\u015fturan t\u0131rnak, b)<\/strong> T\u0131rnak ve kro\u015fe kollar\u0131n\u0131 min\u00f6r ba\u011flay\u0131c\u0131 ile birle\u015ftiren g\u00f6vde, c)<\/strong> Kontur y\u00fcksekli\u011fi \u00fczerinde yer alan stabilizasyon kolu, d)<\/strong> Omuz ve tutucu ucu i\u00e7eren tutucu kol, e)<\/strong> Protez i\u00e7in direkt tutuculuk olu\u015fturan, kontur y\u00fcksekli\u00ad\u011finin alt\u0131nda yer alan ve tutucu kro\u015fe kolunun 1\/3 u\u00e7 k\u0131sm\u0131 olan tutucu u\u00e7, f)<\/strong> Kro\u015fenin g\u00f6vdesini iskelet alt yap\u0131 ile birle\u015ftiren min\u00f6r ba\u011flay\u0131c\u0131, g)<\/strong> G\u00f6vde ve tutucu ucu iskelet alt yap\u0131 ile birle\u015ftiren bir min\u00f6r ba\u011flay\u0131c\u0131 olan, bar kro\u015fenin yakla\u015fan kolu, h)<\/strong> Bar kro\u015fenin kontur y\u00fcksekli\u011finin alt\u0131nda kalan tutucu ucu.[\/caption]\r\n

Tutucu Kol<\/h2>\r\nTutucu (retantif) kolun fonksiyonu, kro\u015fe\u00adnin di\u015f \u00fczerindeki yer de\u011fi\u015ftirmesine diren\u00e7 g\u00f6stermesidir; b\u00f6ylece protezin a\u011f\u0131z i\u00e7inde uygun olan konumda kalmas\u0131n\u0131 sa\u011flar.\r\n\r\nKontur y\u00fcksekli\u011fi<\/strong> bir di\u015fin belirli bir ya\u00adtay d\u00fczlemde en geni\u015f \u00e7evre \u00f6l\u00e7\u00fcm\u00fcd\u00fcr. Model analizi esnas\u0131nda, destek di\u015fin kontur y\u00fcksekli\u011fi \u00e7izici u\u00e7 yard\u0131m\u0131yla belirlendi\u011fin\u00adde, ekvator hatt\u0131 ortaya \u00e7\u0131kar. Ekvator hatt\u0131, di\u015fi \u201cand\u0131rkat alan\u0131\u201d (\u00e7izginin alt\u0131nda kalan b\u00f6l\u00fcm) ve \u201cand\u0131rkats\u0131z alan\u201d (\u00e7izginin \u00fczerinde kalan b\u00f6l\u00fcm) olmak \u00fczere ikiye ay\u0131r\u0131r. Tutucu kolun \u00fc\u00e7te bir u\u00e7 k\u0131sm\u0131 esnek, \u00fc\u00e7te bir orta k\u0131sm\u0131 yar\u0131 esnek ve g\u00f6vdeye kat\u0131lan k\u0131sm\u0131 rijit ola\u00adcak \u015fekilde yap\u0131l\u0131r (\u015eekil 3-2).\r\n\r\n[caption id=\"attachment_285\" align=\"alignnone\" width=\"300\"]\"\u015eekil<\/a> \u015eekil 3-2.<\/strong> \u00c7evresel kro\u015fenin tutucu kolu \u00fc\u00e7 k\u0131sma ayr\u0131l\u0131r: Tutucu u\u00e7 esnektir (e) ve ekvator hatt\u0131n\u0131n alt\u0131nda yer al\u0131r. 1\/3 orta k\u0131sm\u0131 yar\u0131 esnektir (y). Proksimal 1\/3 k\u0131sm\u0131 rijittir (r) ve ekvator hatt\u0131n\u0131n \u00fczerinde yer almal\u0131d\u0131r.[\/caption]\r\n\r\nU\u00e7 k\u0131sm\u0131 tutuculuk g\u00f6revi yaparken, di\u011fer k\u0131s\u0131mlar\u0131 vertikal g\u00f6m\u00fclmeye engel olur ve horizontal stabiliteye yard\u0131m eder.\r\n

\r\nStabilizasyon Kolu<\/h2>\r\nKro\u015fenin stabilizasyon (resiprokal) kolu, destek di\u015f \u00fczerinde tutucu kolun kar\u015f\u0131t y\u00fczeyine yerle\u015ftirilir. Fonksiyonu, tutucu kolun destek di\u015fe uygulad\u0131\u011f\u0131 her t\u00fcrl\u00fc stresi dengelemektir. Resiprokal kol b\u00fct\u00fcn\u00fcyle rijittir. Horizontal stabiliteye katk\u0131da bulunur ve di\u015f y\u00fczeyiyle olan temas\u0131 nedeniyle bir miktar destek ve s\u0131n\u0131rl\u0131 oranda da tutuculuk olu\u015fturur.\r\n

Okluzal T\u0131rnak<\/h2>\r\nT\u0131rnak, \u00e7evresel kro\u015fe i\u00e7in tutucu ve resiprokal kollar\u0131 birle\u015ftirir ve di\u015f y\u00fczeyi \u00fczerinde haz\u0131rlanan yuvaya yerle\u015ftirilerek, kro\u015fenin di\u015feti y\u00f6n\u00fcnde yer de\u011fi\u015ftirmesine diren\u00e7 g\u00f6sterir. Ayn\u0131 zamanda horizontal y\u00f6ndeki harekete de bir miktar engel olarak stabilizasyona katk\u0131da bulunur.\r\n

Min\u00f6r Ba\u011flay\u0131c\u0131<\/h2>\r\nMin\u00f6r ba\u011flay\u0131c\u0131 kro\u015fenin kollar\u0131n\u0131 ve t\u0131rna\u011f\u0131 metal alt yap\u0131ya ba\u011flayan g\u00f6vde k\u0131sm\u0131d\u0131r.\r\n\r\n \r\n\r\n ","rendered":"

Destek di\u015fler \u00fczerine yerle\u015ftirilen kro\u015feler, b\u00f6l\u00fcml\u00fc protezin tutuculu\u011funu sa\u011flamak \u00fcze\u00adre \u00e7al\u0131\u015fan birimleri olarak bilinse de, \u00e7e\u015fitli b\u00f6l\u00fcmleri sayesinde di\u011fer baz\u0131 fonksiyonlara da sahiptirler. Fonksiyon a\u00e7\u0131s\u0131ndan, kro\u015fe iki kol (tutucu ve stabilizasyon), bir t\u0131rnak ve bir min\u00f6r ba\u011flay\u0131c\u0131dan olu\u015fur. Min\u00f6r ba\u011flay\u0131c\u0131 g\u00f6vde k\u0131sm\u0131d\u0131r. Bar ve di\u015feti kro\u015felerinin tutucu kollar\u0131n\u0131 metal alt yap\u0131ya ba\u011flayan min\u00f6r ba\u011flay\u0131c\u0131 \u201cyakla\u015fan kol\u201d olarak bilinir (\u015eekil 3-1).<\/p>\n

\"\u015eekil<\/a>
\u015eekil 3-1.<\/strong> Kro\u015fenin bile\u015fenleri: a)<\/strong> Proteze destek olu\u015fturan t\u0131rnak, b)<\/strong> T\u0131rnak ve kro\u015fe kollar\u0131n\u0131 min\u00f6r ba\u011flay\u0131c\u0131 ile birle\u015ftiren g\u00f6vde, c)<\/strong> Kontur y\u00fcksekli\u011fi \u00fczerinde yer alan stabilizasyon kolu, d)<\/strong> Omuz ve tutucu ucu i\u00e7eren tutucu kol, e)<\/strong> Protez i\u00e7in direkt tutuculuk olu\u015fturan, kontur y\u00fcksekli\u00ad\u011finin alt\u0131nda yer alan ve tutucu kro\u015fe kolunun 1\/3 u\u00e7 k\u0131sm\u0131 olan tutucu u\u00e7, f)<\/strong> Kro\u015fenin g\u00f6vdesini iskelet alt yap\u0131 ile birle\u015ftiren min\u00f6r ba\u011flay\u0131c\u0131, g)<\/strong> G\u00f6vde ve tutucu ucu iskelet alt yap\u0131 ile birle\u015ftiren bir min\u00f6r ba\u011flay\u0131c\u0131 olan, bar kro\u015fenin yakla\u015fan kolu, h)<\/strong> Bar kro\u015fenin kontur y\u00fcksekli\u011finin alt\u0131nda kalan tutucu ucu.<\/figcaption><\/figure>\n

Tutucu Kol<\/h2>\n

Tutucu (retantif) kolun fonksiyonu, kro\u015fe\u00adnin di\u015f \u00fczerindeki yer de\u011fi\u015ftirmesine diren\u00e7 g\u00f6stermesidir; b\u00f6ylece protezin a\u011f\u0131z i\u00e7inde uygun olan konumda kalmas\u0131n\u0131 sa\u011flar.<\/p>\n

Kontur y\u00fcksekli\u011fi<\/strong> bir di\u015fin belirli bir ya\u00adtay d\u00fczlemde en geni\u015f \u00e7evre \u00f6l\u00e7\u00fcm\u00fcd\u00fcr. Model analizi esnas\u0131nda, destek di\u015fin kontur y\u00fcksekli\u011fi \u00e7izici u\u00e7 yard\u0131m\u0131yla belirlendi\u011fin\u00adde, ekvator hatt\u0131 ortaya \u00e7\u0131kar. Ekvator hatt\u0131, di\u015fi \u201cand\u0131rkat alan\u0131\u201d (\u00e7izginin alt\u0131nda kalan b\u00f6l\u00fcm) ve \u201cand\u0131rkats\u0131z alan\u201d (\u00e7izginin \u00fczerinde kalan b\u00f6l\u00fcm) olmak \u00fczere ikiye ay\u0131r\u0131r. Tutucu kolun \u00fc\u00e7te bir u\u00e7 k\u0131sm\u0131 esnek, \u00fc\u00e7te bir orta k\u0131sm\u0131 yar\u0131 esnek ve g\u00f6vdeye kat\u0131lan k\u0131sm\u0131 rijit ola\u00adcak \u015fekilde yap\u0131l\u0131r (\u015eekil 3-2).<\/p>\n

\"\u015eekil<\/a>
\u015eekil 3-2.<\/strong> \u00c7evresel kro\u015fenin tutucu kolu \u00fc\u00e7 k\u0131sma ayr\u0131l\u0131r: Tutucu u\u00e7 esnektir (e) ve ekvator hatt\u0131n\u0131n alt\u0131nda yer al\u0131r. 1\/3 orta k\u0131sm\u0131 yar\u0131 esnektir (y). Proksimal 1\/3 k\u0131sm\u0131 rijittir (r) ve ekvator hatt\u0131n\u0131n \u00fczerinde yer almal\u0131d\u0131r.<\/figcaption><\/figure>\n

U\u00e7 k\u0131sm\u0131 tutuculuk g\u00f6revi yaparken, di\u011fer k\u0131s\u0131mlar\u0131 vertikal g\u00f6m\u00fclmeye engel olur ve horizontal stabiliteye yard\u0131m eder.<\/p>\n

\nStabilizasyon Kolu<\/h2>\n

Kro\u015fenin stabilizasyon (resiprokal) kolu, destek di\u015f \u00fczerinde tutucu kolun kar\u015f\u0131t y\u00fczeyine yerle\u015ftirilir. Fonksiyonu, tutucu kolun destek di\u015fe uygulad\u0131\u011f\u0131 her t\u00fcrl\u00fc stresi dengelemektir. Resiprokal kol b\u00fct\u00fcn\u00fcyle rijittir. Horizontal stabiliteye katk\u0131da bulunur ve di\u015f y\u00fczeyiyle olan temas\u0131 nedeniyle bir miktar destek ve s\u0131n\u0131rl\u0131 oranda da tutuculuk olu\u015fturur.<\/p>\n

Okluzal T\u0131rnak<\/h2>\n

T\u0131rnak, \u00e7evresel kro\u015fe i\u00e7in tutucu ve resiprokal kollar\u0131 birle\u015ftirir ve di\u015f y\u00fczeyi \u00fczerinde haz\u0131rlanan yuvaya yerle\u015ftirilerek, kro\u015fenin di\u015feti y\u00f6n\u00fcnde yer de\u011fi\u015ftirmesine diren\u00e7 g\u00f6sterir. Ayn\u0131 zamanda horizontal y\u00f6ndeki harekete de bir miktar engel olarak stabilizasyona katk\u0131da bulunur.<\/p>\n

Min\u00f6r Ba\u011flay\u0131c\u0131<\/h2>\n

Min\u00f6r ba\u011flay\u0131c\u0131 kro\u015fenin kollar\u0131n\u0131 ve t\u0131rna\u011f\u0131 metal alt yap\u0131ya ba\u011flayan g\u00f6vde k\u0131sm\u0131d\u0131r.<\/p>\n

 <\/p>\n

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