Coskunses, Fatih Mehmet Gumussuyu Military Hospital - Department of Oral and Maxillofacial Surgery, Turkey , Tugcu, Funda Ankara Üniversitesi - Faculty of Dentistry - Department of Oral and Maxillofacial Surgery, Turkey

Evaluation of the effect of the lipus on bone mineral density from the distraction osteogenessis technique by use of DEXA

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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.

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Distraction osteogenesis , low intensity pulsed ultrasound stimulation , bone mineral density

Cumhuriyet Dental Journal

211