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Microstructure, mechanical properties and tissue/biomaterial interface behaviour of new dental restorative composites

C. ALB1, M. MOLDOVAN2, C. PREJMEREAN2, M. TRIF2, C. SAROSI2, D. DUDEA1, V. SIMON3,*

Affiliation

  1. Iuliu Hatieganu University of Medicine and Pharmacy, Faculty of Dental Medicine, Cluj-Napoca, Romania
  2. Babes-Bolyai University, Raluca Ripan Institute for Research in Chemistry,Cluj-Napoca, Romania
  3. Babes-Bolyai University, Faculty of Physics, Cluj-Napoca, Romania

Abstract

Four new dental composites with different inorganic phases were submitted to comparative study regarding their structure, compressive strength, diametral tensile strength, flexural strength and Vickers hardness, as well as composite-hard tissue interface. The composites containing bioceramic show the best integration of silanized filler into the organic matrix. SEM analysis reveals the development between tooth and composite material of a continuous interface consisting in a zone that is different from both bonding resin and dentine. The results of this study prove the effects of filler composition on mechanical properties of the composite resins, and at the same time on the interface between composite and tooth hard tissues.

Keywords

Dental composites, Mechanical properties, Bioceramics, Hydroxyapatite, Interfaces.

Citation

C. ALB, M. MOLDOVAN, C. PREJMEREAN, M. TRIF, C. SAROSI, D. DUDEA, V. SIMON, Microstructure, mechanical properties and tissue/biomaterial interface behaviour of new dental restorative composites, Optoelectronics and Advanced Materials - Rapid Communications, 3, 4, April 2009, pp.350-355 (2009).

Submitted at: Jan. 14, 2009

Accepted at: April 23, 2009