European Journal of Prosthodontics and Restorative Dentistry

Does the Nature of the Definitive Impression Material Influence the Outcome of (Mandibular) Complete Dentures?

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Cover Date

September 2005

Print ISSN

0965-7452

Electronic ISSN

2396-8893

Vol

13

Issue

3

Abstract

The effects of impression materials on the outcome of complete dentures are poorly understood. This double-blind cross-over randomized controlled trial investigated eleven adult edentulous patients. Each received a maxillary denture and three mandibular dentures (which differed only in the three materials used to record the definitive impressions). The three manbibular dentures were given in a random order. PatientsÂ’ opinions of each denture were recorded using a Linear Analogue Scale. There was a statistically-significant difference between the outcome of the dentures constructed when zinc-oxide eugenol was used, this material being least favoured (p<0.001). It would therefore appear that care should be exercised when selecting impression materials when
constructing mandibular complete dentures.
KEY WORDS: Dentures; Outcome; Double blind, Cross-over randomised control trial