Shear bond strengths of 10 adhesive resin/amalgam combinations

K. E. Diefenderfer, John William Reinhardt

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

This study compared the shear bond strengths of amalgam to dentin using two amalgam alloys and five adhesive resin systems. One hundred extracted human third molars were flattened occlusally to expose dentin. Dentin surfaces were treated with one of five adhesive resins: All-Bond 2, Amalgambond Plus, Amalgambond Plus with HPA Powder, OptiBond, and Resinomer. Tytin (spherical) or Dispersalloy (admixed) amalgam was condensed onto the treated dentin surface through a Teflon split mold. The samples were stored 7-10 days and thermocycled before shear testing using a Zwick Materials Testing Machine. Two-way ANOVA revealed significant differences among the 10 groups (P < 0.05). The combination of Tytin/OptiBond produced the highest bond strength to dentin (14.17 MPa), while Dispersalloy/ Amalgambond Plus produced the lowest (3.89 MPa). In general, the filled resin systems (Amalgambond Plus with HPA Powder, OptiBond, Resinomer) produced higher bond strengths than the unfilled systems (All-Bond 2, Amalgambond Plus). Additionally, for four of the five resins, bond strengths were higher with Tytin than with Dispersalloy, although differences were statistically significant in only two groups.

Original languageEnglish (US)
Pages (from-to)50-56
Number of pages7
JournalOperative dentistry
Volume22
Issue number2
StatePublished - Mar 1 1997

Fingerprint

Shear Strength
Dentin
Adhesives
Powders
Materials Testing
Third Molar
Polytetrafluoroethylene
Analysis of Variance
Fungi
Amalgambond
tytin
Optibond
Dispersalloy

ASJC Scopus subject areas

  • Medicine(all)
  • Dentistry(all)

Cite this

Shear bond strengths of 10 adhesive resin/amalgam combinations. / Diefenderfer, K. E.; Reinhardt, John William.

In: Operative dentistry, Vol. 22, No. 2, 01.03.1997, p. 50-56.

Research output: Contribution to journalArticle

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