J Adv Prosthodont.  2019 Feb;11(1):7-15. 10.4047/jap.2019.11.1.7.

In vitro wear behavior between enamel cusp and three aesthetic restorative materials: Zirconia, porcelain, and composite resin

Affiliations
  • 1Department of Dental Biomaterials, Institute of Oral Bioscience and Institute of Biodegradable Material, BK21 Plus Project, School of Dentistry, Chonbuk National University, Jeonju, Republic of Korea. bts@jbnu.ac.kr
  • 2Odonto-stomatology Faculty, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam.
  • 3Department of Pediatric Dentistry and Institute of Biodegradable Material, School of Dentistry, Chonbuk National University, Jeonju, Republic of Korea.
  • 4Plant Dental Clinic, Daejeon, Republic of Korea.

Abstract

PURPOSE
The aim of this study was to identify the effects of three aesthetic restorative materials on the wear between tooth and restoration by a pin-on-disk manner.
MATERIALS AND METHODS
Six aesthetic restorative materials were used to prepare disk specimens for wear test, which were Lava Zirconia as zirconia group, Vintage MP and Cerabien ZR as veneering porcelain group, Gradia Direct microhybrid composite containing prepolymerized fillers, Filtek Z250 microhybrid composite containing zirconia glass and colloidal silica particles, and Filtek Z350 nanocomposite as composite resin group. Vertical loss of the worn cusp, change of the surface roughness of the restoration materials, and the surface topography were investigated after wear test under 9.8-N contact load.
RESULTS
The porcelain groups (Vintage MP and Cerabien ZR) caused the largest vertical loss of teeth when compared with those of the composite resin and zirconia groups, and Filtek Z250 microhybrid composite results in the second-largest vertical loss of teeth. The surface of Filtek Z350 nanocomposite was deeply worn out, but visible wear on the surface of the zirconia and Gradia Direct microhybrid composite was not observed. When the zirconia surface was roughened by sand-blasting, vertical loss of teeth considerably increased when compared with that in the case of fine polished zirconia.
CONCLUSION
It was identified that microhybrid composite resin containing a prepolymerized filler and zirconia with reduced surface roughness by polishing were the most desirable restorative materials among the tested materials to prevent the two-body wear between aesthetic restorative material and tooth.

Keyword

Dental restoration; Dental abrasion; Restoration wear; Antagonist wear resistance
Full Text Links
  • JAP
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
Copyright © 2020 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr