Effect of Composite or Ceramic Thickness on the Polymerization Hardness of 5 Different Dual-cured Resin Luting Cements

Gül Ateş; Nur Hersek

doi:10.7126/cumudj.970768

EN

Effect of Composite or Ceramic Thickness on the Polymerization Hardness of 5 Different Dual-cured Resin Luting Cements

Abstract

Objective: The aim of the present study was to evaluate the influence of ceramic and composite thickness on polymerization hardness of five different dual-cure resin cements. Materials and Methods: A total of 100 disc-shaped spacer, 10-mm in diameter and five varying thicknesses (1.0mm, 2.0mm, 3.0mm, 4.0mm, 5.0mm) were fabricated from ceramic and composite materials. Dual-cure resin cement specimens with 8-mm diameter were prepared using metal brass mold and activated by light beneath the composite and ceramic disc shaped spacers. A total of 100 specimens of five different dual-cure resins (RelyX, Variolink, NX3, Calibra, Panavia F2.0) were prepared. Knoop hardness of each dual-cure resin cement was measured at five different point using a microhardness device with a 500 gm load, after 1 hr, 1 day, and 1 week polymerization. All data were statistically evaluated using one-way ANOVA. Results: Multivariate analysis of variance revealed significant differences in hardness of specimens dual-cured under composite resin or ceramic spacers and different time intervals (P<.001). Specimens cured through composite resin spacers showed less hardness values than ceramic spacers, with increasing thickness of the spacer. Also increasing the thickness of the composite or ceramic spacers produced a statistically significant decrease in microhardness of the dual-cure cements (P<.05). Conclusions: Hardness values significantly reduced when composite spacers were thicker than 2 mm and ceramic spacers thicker than 3 mm. Dual-cured resin cements are needed to be improved to achieve sufficient degree of hardening under composite and ceramic restorations. Different commercially available brands have different polymerization properties.

Keywords

Supporting Institution

Hacettepe University Research Foundation

Project Number

9902 201 001

References

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Details

Primary Language

English

Subjects

Health Care Administration

Journal Section

Research Article

Authors

Gül Ateş ^*
0000-0002-1181-3045
Türkiye

Nur Hersek
0000-0002-1734-1069
Türkiye

Publication Date

March 25, 2022

Submission Date

July 13, 2021

Acceptance Date

December 29, 2021

Published in Issue

Year 2022 Volume: 25 Number: 1

DOI

https://doi.org/10.7126/cumudj.970768

IZ

https://izlik.org/JA54GP29DA

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RIS / Bibtex

EndNote

Ateş G, Hersek N (March 1, 2022) Effect of Composite or Ceramic Thickness on the Polymerization Hardness of 5 Different Dual-cured Resin Luting Cements. Cumhuriyet Dental Journal 25 1 36–42.

Öz

Effect of Composite or Ceramic Thickness on the Polymerization Hardness of 5 Different Dual-cured Resin Luting Cements

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