Masticatory function in edentulous patients wearing implant overdentures after graftless maxillary sinus membrane elevation

Suen A N Lie*, Caroline M Speksnijder, Haris Kalic, Peter A W H Kessler

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

BACKGROUND: Graftless sinus floor augmentation shows good results in bone gain, radiology and implant survival. Clinically, this technique can be recommended as an alternative to conventional procedures using augmentation materials. OBJECTIVES: This study aims to assess masticatory performance, masticatory ability and patient satisfaction after graftless sinus floor augmentation. METHODS: The study group consisted of patients who had received a graftless sinus lift procedure in a split-mouth design and was compared to patients with maxillary implant-supported overdentures without augmentation and a natural dentition group. To assess objective masticatory performance, the mixing ability test was performed. Three questionnaires were used to assess patient reported outcomes related to mastication and patient satisfaction. RESULTS: Each group included ten patients. Both the graftless sinus lift group and the edentulous control group had a worse masticatory performance compared to the natural dentition group. Masticatory ability, measured by patient reported outcomes, was not different between the graftless sinus floor augmentation group and implant-retained overdentures group without augmentation, but the natural dentition group showed better results. Thereby, the better the masticatory performance in patients with a graftless sinus membrane elevation the better the patient satisfaction for 'prosthesis', 'appearance of prostheses', 'speech' and 'mastication and eating'. CONCLUSIONS: Patients with implant-supported overdentures show inferior masticatory function compared to those with natural dentition. There were no significant differences in masticatory performance between patients with implant-retained overdentures, with or without graftless augmentation. The decision on the preferred procedure should consider additional factors such as anatomical, surgical-technical aspects and patient's preferences.
Original languageEnglish
Pages (from-to)1005-1015
Number of pages11
JournalJournal of oral rehabilitation
Volume51
Issue number6
DOIs
Publication statusPublished - Jun 2024

Keywords

  • chewing performance
  • masticatory function
  • mixing ability test
  • quality of life
  • sinus floor augmentation

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