Effect of different storage media on the microhardness and wear resistance of resin-matrix ceramics

Dayan S. Ç., Mumcu E.

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, vol.16, pp.2467-2473, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 16
  • Publication Date: 2019
  • Doi Number: 10.1111/ijac.13307
  • Journal Name: INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2467-2473
  • Keywords: CAD, CAM, microhardness, resin-matrix ceramic material, storage media, two-body wear, CAD/CAM RESTORATIVE MATERIALS, COMPOSITE RESIN, MECHANICAL-PROPERTIES, FRACTURE-RESISTANCE, SURFACE, STRENGTH, DEGRADATION, ROUGHNESS, HARDNESS, BLOCKS
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

This in vitro study evaluated the microhardness and two-body wear of various computer-assisted design and computer-assisted manufacturing (CAD/CAM) resin-matrix ceramic materials stored in different storage media. For each material (Paradigm MZ100, Lava Ultimate, Vita Enamic, and Cerasmart), 40 disk-shaped specimens (8 mm diameter x 3 mm thickness) were prepared and divided into four subgroups (n = 10) according to storage material (artificial saliva, distilled water, 0.02 mol/L citric acid, 3:1 ethanol/water). Following storage at 37 degrees C for 7 days, microhardness was measured with a Knoop test, and wear was measured using a 3D scanner and surface analysis program before and after loading on a chewing simulator (200 000 cycles). Wear values of Vita Enamic were lower in comparison to the other materials tested (P < 0.001). Storage media were found to have a significant effect on material microhardness (P < 0.001), but not on wear (P = 0.820).