Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Influence of Temporary Cements on the Bond Strength of Self-Adhesive Cement to the Metal Coronal Substrate

Full text
Author(s):
Raniel Fernandes Peixoto [1] ; Caio Rocha de Aguiar [2] ; Eduardo Santana Jacob [3] ; Ana Paula Macedo [4] ; Maria da Gloria Chiarello de Mattos [5] ; Rossana Pereira de Almeida Antunes [6]
Total Authors: 6
Affiliation:
[1] USP - Universidade de São Paulo. School of Dentistry of Ribeirão Preto. Department of Dental Materials and Prosthodontics - Brasil
[2] USP - Universidade de São Paulo. School of Dentistry of Ribeirão Preto. Department of Dental Materials and Prosthodontics - Brasil
[3] USP - Universidade de São Paulo. School of Dentistry of Ribeirão Preto. Department of Dental Materials and Prosthodontics - Brasil
[4] USP - Universidade de São Paulo. School of Dentistry of Ribeirão Preto. Department of Dental Materials and Prosthodontics - Brasil
[5] USP - Universidade de São Paulo. School of Dentistry of Ribeirão Preto. Department of Dental Materials and Prosthodontics - Brasil
[6] USP - Universidade de São Paulo. School of Dentistry of Ribeirão Preto. Department of Dental Materials and Prosthodontics - Brasil
Total Affiliations: 6
Document type: Journal article
Source: Brazilian Dental Journal; v. 26, n. 6, p. 637-641, 2015-12-00.
Abstract

This research evaluated the influence of temporary cements (eugenol-containing [EC] or eugenol-free [EF]) on the tensile strength of Ni-Cr copings fixed with self-adhesive resin cement to the metal coronal substrate. Thirty-six temporary crowns were divided into 4 groups (n=9) according to the temporary cements: Provy, Dentsply (eugenol-containing), Temp Cem, Vigodent (eugenol-containing), RelyX Temp NE, 3M ESPE (eugenol-free) and Temp Bond NE, Kerr Corp (eugenol-free). After 24 h of temporary cementation, tensile strength tests were performed in a universal testing machine at a crosshead speed of 0.5 mm/min and 1 kN (100 kgf) load cell. Afterwards, the cast metal cores were cleaned by scraping with curettes and air jet. Thirty-six Ni-Cr copings were cemented to the cast metal cores with self-adhesive resin cement (RelyX U200, 3M ESPE). Tensile strength tests were performed again. In the temporary cementation, Temp Bond NE (12.91±2.54) and Temp Cem (12.22±2.96) presented the highest values of tensile strength and were statistically similar to each other (p>0.05). Statistically significant difference (p<0.05) was observed only between Provy (164.44±31.23) and Temp Bond NE (88.48±21.83) after cementation of Ni-Cr copings with self-adhesive resin cement. In addition, Temp Cem (120.68±48.27) and RelyX Temp NE (103.04±26.09) showed intermediate tensile strength values. In conclusion, the Provy eugenol-containing temporary cement was associated with the highest bond strength among the resin cements when Ni-Cr copings were cemented to cast metal cores. However, the eugenol cannot be considered a determining factor in increased bond strength, since the other tested cements (1 eugenol-containing and 2 eugenol-free) were similar. (AU)

FAPESP's process: 10/01546-9 - Influence of temporary cements in the bond strength of copings luted with resin cements.
Grantee:Caio Rocha de Aguiar
Support Opportunities: Scholarships in Brazil - Scientific Initiation