کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6053226 1197019 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Does tin pre-treatment enhance the bond strength of adhesive systems to enamel?
ترجمه فارسی عنوان
آیا قبل از درمان قلع باعث افزایش استحکام باند سیستم های چسبنده به مینای دندان می شود؟
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی دندانپزشکی، جراحی دهان و پزشکی
چکیده انگلیسی

ObjectivesThe study investigated the modification of composite-to-enamel bond strength by pre-treatment of enamel with a concentrated, acidic SnCl2-solution.MethodsSix groups of flat human enamel specimens (n = 44 per group) were treated as follows: OB-H: H3PO4 etching, Optibond FL application (primer + adhesive; manufacturer's instructions); OB-S: SnCl2 pre-treatment, Optibond FL application (primer + adhesive); OB-HS: H3PO4 etching + SnCl2 pre-treatment, Optibond FL application (primer + adhesive); CF-N: Clearfil SE application (primer + bond; manufacturer's instructions); CF-H: H3PO4 etching, Clearfil SE application (primer + bond); CF-S: SnCl2 pre-treatment, Clearfil SE application (primer + bond). Enamel specimens were then built up with resin composite (Clearfil Majesty Esthetic) and stored (100% humidity, 37 °C, 1 week). μTBS-measurement and failure mode analysis of one-half of the specimens were performed immediately after storage, while the other half was analysed after a thermocycling procedure (8500 cycles; 5 °C and 55 °C; dwell time 30 s). Additional specimens were prepared for SEM- and EDX-analysis.ResultsHighest values were measured for OB-H before and after thermocycling, lowest values for CF-N. Compared to OB-H treatment, OB-S treatment reduced μTBS before/after thermocycling by 23%/28% and OB-HS treatment by 8%/24% (except for OB-SH before (n.s.), all p ≤ 0.001 compared to OB-H). In the Clearfil SE treated groups pre-treatment increased μTBS significantly compared to CF-N (before/after: CF-H: +46%/+70%; CF-S: +51%/42%; all p ≤ 0.001).ConclusionPre-treatment with H3PO4 or SnCl2 markedly increased the μTBS of Clearfil SE to enamel. However, thermocycling partly reduced the gain in μTBS obtained by SnCl2 pre-treatment.Clinical significanceThe application of an acidic and highly concentrated SnCl2 solution is a good option to increase the μTBS between enamel and a resin composite mediated by an adhesive system containing the multifunctional monomer MDP.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Dentistry - Volume 41, Issue 7, July 2013, Pages 642-652
نویسندگان
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