Open AccessIn vitro Comparison of Compressive Strength of Bulk-fill Composites and Nanohybrid Composite
Author(s) -
K Pradeep,
Kishore Ginjupalli,
MA Kuttappa,
Adarsh Kudva,
Roshni Butula,
Shankargouda Patil
Publication year - 2016
Publication title -
world journal of dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.166
H-Index - 10
eISSN - 0976-6014
pISSN - 0976-6006
DOI - 10.5005/jp-journals-10015-1378
Subject(s) - universal testing machine , compressive strength , materials science , composite material , composite number , curing (chemistry) , mold , ultimate tensile strength
Objectives The objective of this study is to measure and compare the compressive strength of two bulk-fill posterior composites (Smart dentin replacement or SDR and Filtek bulk fill) with universal nanohybrid composite (Filtek Z 250XT). Materials and methods In this in vitro study, three different types of posterior composites are used as follows: Group 1 – SDR (Dentsply, Konstanz, Germany); group 2 – Filtek bulk-fill (3M ESPE, St. Paul, MN, USA); group 3 – Filtek Z-250XT (3M ESPE, St. Paul, MN, USA). Ten cylindrical samples of 6 mm height and 4 mm diameter in each group were made using a split brass mold. The composites filled in the brass mold were photopolymerized using light-emitting diode (LED) light-curing unit and the cured samples were stored in water at 37°C for 48 hours before testing. The compressive strength of the stored samples was tested using universal testing machine (Instron 3366, UK) at a cross-head speed of 0.5 mm/minute. The compressive strength was calculated by dividing the maximum load with area of the samples. Results Results are statistically analyzed using one-way analysis of variance (ANOVA) with Tukey's post hoc test. Analysis showed that SDR and Filtek bulk-fill have greater compressive strength than Filtek Z-250 (p 0.05). How to cite this article Pradeep K, Ginjupalli K, Kuttappa MA, Kudva A, Butula R. In vitro Comparison of Compressive Strength of Bulk-fill Composites and Nanohybrid Composite. World J Dent 2016;7(3):119-122.