کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2032187 1071685 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
New endodontic obturation systems and their interfacial bond strength with intraradicular dentine – ex vivo studies
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیوشیمی، ژنتیک و زیست شناسی مولکولی (عمومی)
پیش نمایش صفحه اول مقاله
New endodontic obturation systems and their interfacial bond strength with intraradicular dentine – ex vivo studies
چکیده انگلیسی

ABSTRACTPurposeTo comparatively evaluate adhesive properties of selected root canal fillings through the measurement of the material-dentine interfacial bond strength.Material and MethodsFifty extracted single-rooted human teeth with one canal each were prepared using Hero instruments to size 30.04. Teeth were divided into four subgroups depending on the root canal filling material and the method of obturation: Resilon/Epiphany - a thermoplastic method (IA), Resilon/Epiphany - a matching single-point method (IB), gutta-percha/Roeko Seal Automix - a thermoplastic method (IIA) and gutta-percha/Roeko Seal Automix - a matching single-point method (IIB). The obturated roots were cut perpendicular to the long axis to create 1.7 mm thick slices. The bond strength was measured for each test slice with push –out testing machine.ResultsThe highest push-out bond strength was registered in subgroup IB (3.98 ± 1.33 MPa). Significantly lower bond strength was observed in subgroups IA (0.50 ± 0.24 MPa), IIA (0.33 ± 0.18 MPa) and IIB (0.08 ± 0.03 MPa) (p<0.001). No statistically significant differences in material-dentine interfacial bond strength values were observed between IA and IIA, IA and IIB, IIA and IIB subgroups (p > 0.05).ConclusionsThe push-out bond strength of the material-dentine interface was dependent on the type of material used and the root canal filling technique. The R/E system exhibited better adhesion ability to intraradicular dentine than G/RSA. The highest bond strength was observed for Resilon/Epiphany introduced with the single-cone technique.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Medical Sciences - Volume 56, Issue 2, December 2011, Pages 327–333
نویسندگان
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