Thermal removal of composite resin: Effect on rebonding etched metal

Van Benjamine Haywood, B. Ed Kanoy, Karen J. Bruggers, Steven B. Andreaus

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

If a correctly etched-metal, resin-bonded fixed partial denture debonds, one recommendation for reuse is to clean the prosthesis by oven burnout, then to recement it without reetching. The purpose of this study was to determine whether the tensile strength of the bond of composite resin cement to either electrolytically or chemically etched metal was affected by earlier removal of residual resin with a burnout procedure. Pairs of rods made of nickel-chromium-beryllium were electrolytically or chemically etched according to accepted techniques, then bonded end-to-end with an enamel bonding agent and composite resin cement in an alignment apparatus. The rods were stored for 24 hours in 37 °C water, then debonded to determine the tensile bond strengths in megapascals. After debonding, the rods were placed in the burnout oven at 510 °C for 30 minutes. The rods were then ultrasonically cleaned in ethyl alcohol for 6 minutes. The pairs were rinsed under running water and then rebonded and debonded nine more times under the same conditions. A linear regression analysis revealed that there was no statistically significant difference (ρ < 0.05) in the tensile strength of the bonds after repeated thermal cleanings and bondings. Correctly etched metal, resin-bonded fixed partial dentures may be recemented without re-etching after thermal cleaning without a statistically significant loss in the tensile strength of the bonds.

Original languageEnglish (US)
Pages (from-to)289-291
Number of pages3
JournalThe Journal of prosthetic dentistry
Volume63
Issue number3
DOIs
StatePublished - Jan 1 1990
Externally publishedYes

Fingerprint

Composite Resins
Tensile Strength
Resin-Bonded Fixed Partial Denture
Hot Temperature
Metals
Resin Cements
Beryllium
Water
Chromium
Dental Enamel
Nickel
Prostheses and Implants
Linear Models
Ethanol
Regression Analysis

ASJC Scopus subject areas

  • Oral Surgery
  • Dentistry(all)

Cite this

Thermal removal of composite resin : Effect on rebonding etched metal. / Haywood, Van Benjamine; Kanoy, B. Ed; Bruggers, Karen J.; Andreaus, Steven B.

In: The Journal of prosthetic dentistry, Vol. 63, No. 3, 01.01.1990, p. 289-291.

Research output: Contribution to journalArticle

Haywood, Van Benjamine ; Kanoy, B. Ed ; Bruggers, Karen J. ; Andreaus, Steven B. / Thermal removal of composite resin : Effect on rebonding etched metal. In: The Journal of prosthetic dentistry. 1990 ; Vol. 63, No. 3. pp. 289-291.
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