Flexion characteristics of four-unit fixed partial denture frameworks using holographic interferometry

Gary R. Goldstein, Anthony Wesson, Kenneth Schweitzer, Bradley Cutler

Research output: Contribution to journalArticlepeer-review

Abstract

Flexion of a metal/ceramic fixed partial denture (FPD) framework under function can cause fracture of the porcelain or deterioration of the cement seal. This study evaluated the iexion under compressive load of a four-unit mandibular FPD replacing the second premolar and the first molar. Testing was accomplished with elapsed time holographic interferometry, using 39 porcelain fused-to-metal frameworks cast with a silver-palladium alloy. The results demonstrated that solder joints at the junction of the premolar and molar pontics flexed under a reduced compressive load and exhibited a higher failure rate than other connector designs.

Original languageEnglish (US)
Pages (from-to)609-613
Number of pages5
JournalThe Journal of Prosthetic Dentistry
Volume67
Issue number5
DOIs
StatePublished - May 1992

ASJC Scopus subject areas

  • Oral Surgery

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