Effect of surface treatment on etched procelain bond strength to enamel

J. Sheth, Mark Jensen, D. Tolliver

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

The purpose of this study was to evaluate the effect of mechanical retention by etching and chemical bonding by silanizing porcelain surfaces on their shear bond strength to etched enamel. The individual contributions of the two processes were compared with the bond strength obtained by the combined treatment. The effect of applying fit-checker paste to etched porcelain surface was also examined before and after re-etching. The 5 groups were compared between Mirage shade A2 (N=25) and Mirage shade 65 (N=25) porcelains. Following surface treatment of porcelain and resin bonding to etched enamel, the specimens were thermocycled 600 times between 5° and 55°C and debonded in shear mode. Results indicated that, overall, Mirage shade 65 porcelain was twice as strong as Mirage shade A2. However, the 5 treatment groups for each shade showed remarkable similarity, with the highest bond achieved by both etching and silanizing the porcelain. The bond strength from etching or silanizing alone was not significant. Use of a fit-checker paste lowered the bond strength, possibly by chemical contamination. There was no evidence of physical obliteration of the microporosities on the etched surface with the use of a silane coupling agent or the fit-checker if removed completely. It was concluded that optimum bond strength of porcelain to etched enamel is obtained by both etching and silanizing the surface. Caution should be exercised when using a silicone-based fit-checker paste. Further study is recommended.

Original languageEnglish (US)
Pages (from-to)328-337
Number of pages10
JournalDental Materials
Volume4
Issue number6
DOIs
StatePublished - Jan 1 1988

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Dental Porcelain
Porcelain
Enamels
Dental Enamel
Surface treatment
Etching
Ointments
Bond strength (materials)
varespladib methyl
Chemical contamination
Silanes
Shear Strength
Microporosity
Coupling agents
Silicones
Resins
Mirage
Fit-Checker

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Dentistry(all)
  • Mechanics of Materials

Cite this

Effect of surface treatment on etched procelain bond strength to enamel. / Sheth, J.; Jensen, Mark; Tolliver, D.

In: Dental Materials, Vol. 4, No. 6, 01.01.1988, p. 328-337.

Research output: Contribution to journalArticle

Sheth, J. ; Jensen, Mark ; Tolliver, D. / Effect of surface treatment on etched procelain bond strength to enamel. In: Dental Materials. 1988 ; Vol. 4, No. 6. pp. 328-337.
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