title: Influence of different composite materials and cavity preparation designs on the fracture resistance of mesio-occluso-distal inlay restoration.
abstract: The aim of the study to evaluate the fracture resistance of a computer-aided design/computer-aided manufacturing (CAD/CAM) and three indirect composite materials for three different mesio-occluso-distal (MOD) inlay cavity designs. A total of 120 mandibular third molar were divided into three groups: (G1) non-proximal box, (G2) 2-mm proximal box, and (G3) 4-mm proximal box. Each cavity design received four composite materials: Estenia, Epricord (Kuraray, Japan), Tescera (Bisco, USA), and Cerasmart CAD/CAM blocks (GC, USA). The specimens were subjected to a compressive load at a crosshead speed of 1 mm/min. The data was analyzed using the two-way analysis of variance and Bonferroni post hoc test (p<0.05). Estenia exhibited significantly higher fracture strength than Epricord and Cerasmart in G1. In G2 and G3, there was no significant difference among the four materials. Using a non-proximal box design for the cavity can improve the fracture resistance of the inlay restoration.
authors.affiliation: Department of Restorative Dentistry, Faculty of Dentistry, Kocaeli University.
authors.forename: Neslihan
authors.initials: N
authors.lastname: Tekçe
authors.forename: Kansad
authors.initials: K
authors.lastname: Pala
authors.forename: Mustafa
authors.initials: M
authors.lastname: Demirci
authors.forename: Safa
authors.initials: S
authors.lastname: Tuncer
mesh_terms: D003188:Composite Resins; D017076:Computer-Aided Design; D003737:Dental Cavity Preparation; D003799:Dental Stress Analysis; D006801:Humans; D007284:Inlays; D008422:Materials Testing; D013314:Stress, Mechanical; D014082:Tooth Fractures
chemical_list: D003188:Composite Resins