کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3144252 1196860 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Single versus triple daily activation of the distractor: No significant effects of frequency of distraction on bone regenerate quantity and architecture
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی دندانپزشکی، جراحی دهان و پزشکی
پیش نمایش صفحه اول مقاله
Single versus triple daily activation of the distractor: No significant effects of frequency of distraction on bone regenerate quantity and architecture
چکیده انگلیسی

SummaryObjectivesTo study the effect of two different frequencies of distraction on the quantity and architecture of bone regenerate using micro-computed tomography, and to determine whether radiographic and ultrasonographic bone-fill scores provide reliable predictive value for the amount of new bone in the distraction area.Material and methodsTwenty-six skeletally mature rabbits underwent three full days of latency, after which midface distraction was started. Low-frequency group (n = 12): a distraction rate of 0.9 mm/d achieved by one daily activation for 11 days to create a 10 mm distraction gap. High-frequency group (n = 12): idem, but three daily activations were used instead of one. Control group (n = 2) underwent no distraction. After 21 days of consolidation, bone-fill in the distraction area was assessed by means of ultrasonography and radiography. Micro-computed tomography was used to quantify new bone formation and bone architecture.ResultsRelative bone volume (BV/TV) showed a tendency towards a difference (P = 0.09) between the low and high-frequency groups. No significant differences were found for bone architecture. No significant correlation between BV/TV values and bone-fill scores was found.ConclusionsAn increase in rhythm from one to three activations daily does not create significantly more bone. Bone-fill score values provided no reliable predictive value for the amount of new bone formation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cranio-Maxillofacial Surgery - Volume 36, Issue 3, April 2008, Pages 143–151
نویسندگان
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