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Dental tissue - inlay interface structural shift at mechanical and thermal stresses

B. M. GALBINASU1,* , F. MICULESCU2, D. PIRVU1, L. T. CIOCAN1, D. HERSCHBACH3, A. TONKO1, I. PATRASCU1, F. STOICIU4

Affiliation

  1. "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania
  2. “Politehnica” University of Bucharest, Romania
  3. Private Medical Practice, München, Germany
  4. The National Institute of Research and Development of Rare and Nonferrous Metals, Bucharest, Romania

Abstract

All indirect ceramic dental restorations represent a challenge, both in terms of aesthetics and interactions with the adjacent biological tissues, the ceramic mass being considered a biotolerated, bio-prophylactic, and bioinert material. The interface between advanced ceramic restorative materials, fixing resins and dental hard tissues has always been considered a sensitive domain in terms of maintaining lasting prosthetic restorations and also of the predictability of restorations included in the treatment plan. The objective of this study is to in vitro investigate the changes occurring at the adhesive interface, tooth-whole ceramic inlay, after subjecting the assembly to thermal and mechanical stresses that have outcomes on the restoration clinical behaviour. In order to obtain the best and reproducible results, we used a thermo-cycler system, a computer assisted mechanical testing system, and the electron microscopy for testing of all-ceramics inlays fixed on permanent intact teeth..

Keywords

Dental structure–adhesive inlay interface, CAD-CAM, mechanical stress, SEM.

Citation

B. M. GALBINASU, F. MICULESCU, D. PIRVU, L. T. CIOCAN, D. HERSCHBACH, A. TONKO, I. PATRASCU, F. STOICIU, Dental tissue - inlay interface structural shift at mechanical and thermal stresses, Optoelectronics and Advanced Materials - Rapid Communications, 6, 3-4, March-April 2012, pp.459-464 (2012).

Submitted at: Feb. 9, 2012

Accepted at: April 11, 2012