The combined effects of salivas and occlusal indicators on occlusal contact forces

Christopher J. Beninati, Thomas R. Katona

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Background: Some occlusal detection products are designed for use on dry teeth, but this is not always achieved. Others are suited for dry and wet applications. Objective: The objective of this study is to assess the combined effects, on occlusal contact forces, of two previously studied affecting variables—occlusal detection products and saliva. Methods: We used a full-arch dentiform with three occlusal detection products (an articulating film, an articulation paper and T-Scan) in combination with human (HS) and an artificial saliva. The maxillary arch assembly, weighing ~54 N (the maximum bite force), was lowered onto (occlusion) and lifted off (disclusion) of the mandibular arch through 10 cycles by a mechanical testing machine. The forces and moments acting on the mandibular arch were continuously recorded by a load cell that supported it. Results: The maximum values of F lateral (the in-occlusal plane component of the occlusal contact force) were analysed by occlusion/disclusion separately using one-way ANOVA, with factor for group type to identify the significant effect of salivas on products, effect of products, effect of salivas with products, effect of human saliva. A difference in occlusion and/or in disclusion was considered different. Statistical differences (P < 0.0001) in F lateral were found in: dry product vs product + HS, dry product vs product + artificial saliva (with articulating film and T-Scan) and HS vs product + HS (with articulation paper and T-Scan). Conclusion: All products were affected by the salivas, except articulation paper by artificial saliva.

Original languageEnglish (US)
Pages (from-to)468-474
Number of pages7
JournalJournal of Oral Rehabilitation
Volume46
Issue number5
DOIs
StatePublished - May 2019

Keywords

  • T-Scan
  • articulating film
  • articulation paper
  • bite force
  • dental occlusion
  • friction
  • saliva

ASJC Scopus subject areas

  • Dentistry(all)

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