کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3148523 1197404 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hard-Tissue Debris Accumulation Analysis by High-Resolution Computed Tomography Scans
کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی دندانپزشکی، جراحی دهان و پزشکی
پیش نمایش صفحه اول مقاله
Hard-Tissue Debris Accumulation Analysis by High-Resolution Computed Tomography Scans
چکیده انگلیسی

IntroductionHard-tissue debris accumulation is a potential side effect of root canal instrumentation that has not been systematically investigated. In the current communication, a method to assess this debris using high-resolution microcomputed tomography (μCT) is presented.MethodsBased on prescans, mandibular molars with joining mesial root canals and isthmuses between these were selected (n = 6). The mean volume filled with apparent hard-tissue debris after instrumentation without irrigation was calculated over 2 mm of the mesial canal system by multiplying the voxel volume with the number of voxels representing acquired radiopaque material. Backscattered electron imaging was used to compare the calcium-phosphorus content of this material with that of the root dentin in the same specimen.ResultsBackscatter scans showed that the accumulated debris viewed in the μCT scans was consistent with root dentin. In the selected canal segments, 29.2% ± 14.5% of the original canal volume was filled with accumulated debris, which represented a significant change from the preoperative scan (p < 0.01, one-sample t test against zero). Three-dimensional reconstructions of the μCT images visualized the accumulated hard-tissue debris in the whole canal system.ConclusionsThe current method appears suitable to quantitatively compare different instrumenting/irrigating regimens on dentin debris accumulation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Endodontics - Volume 35, Issue 7, July 2009, Pages 1044–1047
نویسندگان
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