کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3168686 1586354 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of shaft design on the shaping ability of 3 nickel-titanium rotary systems by means of spiral computerized tomography
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی دندانپزشکی، جراحی دهان و پزشکی
پیش نمایش صفحه اول مقاله
Influence of shaft design on the shaping ability of 3 nickel-titanium rotary systems by means of spiral computerized tomography
چکیده انگلیسی

ObjectiveTo evaluate the influence of shaft design on the shaping ability of 3 rotary nickel-titanium (NiTi) systems.Study designSixty curved mesial canals of mandibular molars were used. Specimens were scanned by spiral tomography before and after canal preparation using ProTaper, ProFile, and ProSystem GT rotary instruments. One-millimeter-thick slices were scanned from the apical end point to the pulp chamber. The cross-sectional images from the slices taken earlier and after canal preparation at the apical, coronal, and midroot levels were compared.ResultsThe mean working time was 137.22 ± 5.15 s. Mean transportation, mean centering ratio, and percentage of area increase were 0.022 ± 0.131 mm, 0.21 ± 0.11, and 76.90 ± 42.27%, respectively, with no statistical differences (P> .05).ConclusionsAll instruments were able to shape curved mesial canals in mandibular molars to size 30 without significant errors. The differences in shaft designs seemed not to affect their shaping capabilities.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology - Volume 105, Issue 6, June 2008, Pages 807–813
نویسندگان
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