%0 Journal Article
%T Distraksiyon osteogenezinde d¨¹ ¨¹k yo unlukta ultrason stim¨¹lasyonunun kemik mineral yo unlu una etkisinin DEXA ile incelemesi
%A Fatih Mehmet Co£¿kunses
%A Funda Tu£¿cu
%J Cumhuriyet Dental Journal
%D 2012
%I Cumhuriyet University Faculty of Dentistry
%R 10.7126/cdj.2012.1228
%X Objectives: Distraction osteogenesis (DO) is a surgical method which provides new bone formation by gradually increasing the distance between bone segment surfaces created by osteotomy. In the present study assessing the effect of low intensity pulsed ultrasound stimulation (LIPUS) on bone mineral density (BMD) of the bone formed in distraction osteogenesis (DO) with dual energy X-ray absorptiometry (DEXA) and making a comparison between postoperative 30th and 60th days was aimed. Materials and Methods: A total of 8 New Zealand rabbits were used in the study While DO was applied to 4 rabbits, 4 were applied 30mW/cm2 (1Mhz) LIPUS on DO site for 20 min a day during distraction period in addition to DO application Results: In LIPUS group, mean BMD values were seen to be above the initial values on 30th day while on 60th day the increase ratio was greater when compared. BMD values were seen to be below initial values both on 30 and 60 days postoperatively in control group. Conclusion: By the effect of LIPUS, majority of bone maturation is completed within the first 30 days and gained bone may resist to functional forces.  ZET Ama : Distraksiyon osteogenezi (DO), osteotomi ile olu turulmu  kemik segmentlerinin apareyler yard m  ile kademeli olarak birbirinden ayr lmas yla birlikte yeni kemik olu umunun sa land    cerrahi bir y ntemdir. Bu  al  mada D¨¹ ¨¹k Yo unlukta Ultrason Stim¨¹lasyonu¡¯nun (DYUS) DO¡¯ inde olu an kemi in mineral yo unlu u ¨¹zerine etkinli inin, cerrahi  ncesi ve cerrahi sonras  otuzuncu ve altm   nc  g¨¹nlerde Dual Enerji X I  n  Absorbsiyormetrisi (DEXA) y ntemi ile fotodensitometrik olarak de erlendirilmesi ama lanm  t r. Gere  ve Y ntem:  al  mada 8 Yeni Zelanda tav an  dahil edilmi tir. Tav anlar n mandibulalar na DO uygulamas  yap lm  t r. 4 tav ana DO uygulamas na ek olarak distraksiyon periyodunda DYUS uygulamas  yap l rken 4 tav ana sadece DO uygulamas  yap larak kontrol grubunu olu turmalar  sa lanm  t r. Bulgular: DYUS uygulamas  yap lan grupta kemik mineral yo unlu unun otuzunca g¨¹nde ba lang   seviyesinin ¨¹zerinde bir de ere ula t    g zlenmi tir. Ayn  grupta altm   nc  g¨¹nde kemik mineral yo unlu u de erleri bir miktar daha artm  t r. Kontrol grubunda otuzuncu g¨¹nde kemik mineral yo unlu u azal rken altm   nc  g¨¹nde ba lang   seviyesine yak n de erlere ula  lm  t r. Sonu : DYUS¡¯ un etkisiyle DO¡¯inde kemik olgunla mas n n b¨¹y¨¹k bir b l¨¹m¨¹n¨¹n ilk 30 g¨¹nde tamamland    ve kazan lan kemi in fonksiyonel kuvvetlere diren  g sterebilece i d¨¹ ¨¹n¨¹lebilir. Anahtar Kelimeler: Distraksiyon Osteogenezi, d¨¹ ¨¹k yo unlukta ultrason stim¨¹lasyonu,
%K Distraction osteogenesis
%K low intensity pulsed ultrasound stimulation
%K bone mineral density
%U http://dergi.cumhuriyet.edu.tr/ojs/index.php/dishekimligi/article/view/1228