Masticatory function with mandibular implant-supported overdentures fitted with different attachment types

A van der Bilt*, FMC Van Kampen, MS Cune

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

79 Citations (Scopus)

Abstract

Oral rehabilitation by means of implant-retained mandibular overdentures is known to improve the oral function. The improvement may depend on the degree of retention and stability of the denture and thus on the type of attachment. In this within-patient cross-over clinical trial, we examined the hypothesis that more retention and stability of the overdenture improves the masticatory function. Eighteen patients received two permucosal implants, a new overdenture, and, successively, three different suprastructure modalities: a magnet, a ball, and a bar-clip attachment. We quantified aspects of the oral function by measuring the electromyographic activity of the jaw muscles and the jaw movement during chewing. The muscle activity was significantly lower for the unsupported new mandibular denture compared with values for the supported new denture. No significant differences in muscle activity were observed among the three attachment types. Furthermore, we did not observe significant differences in jaw muscle activity between the old unsupported denture and the new supported denture, despite significant differences in masticatory performance. Measuring muscle activity during chewing will thus not provide adequate information about masticatory function. Thus, subjects chewed more efficiently after implant treatment. No changes in cycle duration or in jaw movement parameters were observed among the various measurement moments.

Original languageEnglish
Pages (from-to)191-196
Number of pages6
JournalEuropean Journal of Oral Sciences
Volume114
Issue number3
DOIs
Publication statusPublished - Jun-2006
Externally publishedYes

Keywords

  • EMG
  • mandibular overdenture
  • mastication
  • muscle activity
  • oral implant
  • MAXIMUM BITE FORCE
  • RETAINED OVERDENTURES
  • PATIENT SATISFACTION
  • OSSEOINTEGRATED IMPLANTS
  • PROSTHETIC ASPECTS
  • MYASTHENIA-GRAVIS
  • CLINICAL-TRIAL
  • ORAL FUNCTION
  • BAR-CLIP
  • IN-VIVO

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