On the Interfacial Fracture Resistance of Resin-bonded Zirconia and Glass-infiltrated Graded Zirconia

Overview

Journal Dent Mater

Specialty Dentistry

Date 2015 Sep 15

PMID 26365987

Citations 19

Authors

Herzl Chai

Marina Kaizer

Asima Chughtai

Hui Tong

Carina Tanaka

Yu Zhang

Affiliations

Soon will be listed here.

Abstract

Objective: A major limiting factor for the widespread use of zirconia in prosthetic dentistry is its poor resin-cement bonding capabilities. We show that this deficiency can be overcome by infiltrating the zirconia cementation surface with glass. Current methods for assessing the fracture resistance of resin-ceramic bonds are marred by uneven stress distribution at the interface, which may result in erroneous interfacial fracture resistance values. We have applied a wedge-loaded double-cantilever-beam testing approach to accurately measure the interfacial fracture resistance of adhesively bonded zirconia-based restorative materials.

Methods: The interfacial fracture energy GC was determined for adhesively bonded zirconia, graded zirconia and feldspathic ceramic bars. The bonding surfaces were subjected to sandblasting or acid etching treatments. Baseline GC was measured for bonded specimens subjected to 7 days hydration at 37°C. Long-term GC was determined for specimens exposed to 20,000 thermal cycles between 5 and 55°C followed by 2-month aging at 37°C in water. The test data were interpreted with the aid of a 2D finite element fracture analysis.

Results: The baseline and long-term GC for graded zirconia was 2-3 and 8 times greater than that for zirconia, respectively. More significantly, both the baseline and long-term GC of graded zirconia were similar to those for feldspathic ceramic.

Significance: The interfacial fracture energy of feldspathic ceramic and graded zirconia was controlled by the fracture energy of the resin cement while that of zirconia by the interface. GC for the graded zirconia was as large as for feldspathic ceramic, making it an attractive material for use in dentistry.

Citing Articles

Effect of different surface treatments and adhesive cementation on the surface topography and flexural strength of translucent and ultra-translucent monolithic zirconia.

da Silva B, da Silva S, da Silva N, de Moreira F, Souza K, Zhang Y J Prosthodont. 2024; .

PMID: 39189693 PMC: 11865360. DOI: 10.1111/jopr.13929.

Functionally graded bi-material interface for Porcelain Veneered Zirconia dental crowns: A study using viscoelastic finite element analysis.

Shrestha R, Reddy N, Fredeen S, Zhang Y, Kim J Dent Mater. 2024; 40(8):1267-1281.

PMID: 38876830 PMC: 11260237. DOI: 10.1016/j.dental.2024.06.007.

Effects of surface modification techniques on zirconia substrates and their effect on bonding to dual cure resin cement - An study.

Mohit K, Lakha T, Chinchwade A, Batul Q, Shaikh M, Kheur S J Indian Prosthodont Soc. 2022; 22(2):179-187.

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Aging resistance of infiltrated monolithic zirconia compared to noninfiltrated monolithic zirconia: A systematic review of studies.

Kanitkar A, Gandhi P, Kanitkar A, Priya S, Paranna S, Patil S J Indian Prosthodont Soc. 2022; 22(2):131-142.

PMID: 36511024 PMC: 9132511. DOI: 10.4103/jips.jips_437_21.

Silica infiltration on translucent zirconia restorations: Effects on the antagonist wear and survivability.

Martins Alves L, Rodrigues C, Ramos N, Buizastrow J, Campos T, Bottino M Dent Mater. 2022; 38(12):2084-2095.

PMID: 36446649 PMC: 9928576. DOI: 10.1016/j.dental.2022.11.015.

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