کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5640567 1585466 2017 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of bulk-fill base material on fracture strength of root-filled teeth restored with laminate resin composite restorations
ترجمه فارسی عنوان
اثر مواد پایه فله ای بر مقاومت شکستگی دندان های ریشه پر شده با ترمیم های کامپوزیت رزین لامینت
کلمات کلیدی
قدرت شکستگی، دندان های ریشه پر، پایه های جومپا فله تکنیک ورقه ورقه کامپوزیت رزین،
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی دندانپزشکی، جراحی دهان و پزشکی
چکیده انگلیسی

ObjectivesTo evaluate the effect of using a bulk-fill flowable base material on fracture strength and fracture patterns of root-filled maxillary premolars with MOD preparations restored with laminate restorations.MethodsFifty extracted maxillary premolars were selected for the study. Standardized MOD cavities with endodontic treatment were prepared for all teeth, except for intact control. The teeth were divided randomly into five groups (n = 10); (Group 1) sound teeth, (Group 2) unrestored teeth; (Group 3) MOD cavities with Vitrebond base and resin-based composite (Ceram. X One Universal); (Group 4) MOD cavities with 2 mm GIC base (Fuji IX GP) and resin-based composite (Ceram. X One Universal) open laminate, (Group 5) MOD cavities were restored with 4 mm of bulk-fill flowable base material (SDR) and resin-based composite (Ceram. X One Universal). All teeth were thermocycled and subjected to a 45° ramped oblique load in a universal testing machine. Fracture load and fracture patterns were recorded. Data were analyzed using one-way ANOVA and Dunnett's T3 test.ResultsRestoration in general increased the fracture strength compared to unrestored teeth. The fracture strength of group 5 (bulk-fill) was significantly higher than the fracture strength of the GIC laminate groups and not significantly different from the intact teeth (355 ± 112N, P = 0.118). The type of failure was unfavorable for most of the groups, with the majority being mixed failures.ConclusionsThe use of a bulk-fill flowable base material significantly increased the fracture strength of extracted root-filled teeth with MOD cavities; however it did not improve fracture patterns to more favorable ones.Clinical significanceInvestigating restorative techniques that may improve the longevity of root-filled premolar teeth restored with direct resin restorations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Dentistry - Volume 63, August 2017, Pages 60-64
نویسندگان
, , , ,