Single mandibular implant study - chewing efficiency - 5-year results from a randomized clinical trial using two different implant loading protocols

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Nicole Passia - , Department of Prosthodontics, Kiel University, University Hospital Carl Gustav Carus Dresden (Author)
  • Shurouk Ali - , Kiel University (Author)
  • Christoph Behrendt - , Greifswald University Hospital (Author)
  • Elfriede Fritzer - , Kiel University (Author)
  • Ralf Joachim Kohal - , MSH Medical School Hamburg (Author)
  • Ralph G Luthardt - , Ulm University Medical Center (Author)
  • Nadine Frfr Maltzahn - , Hannover Medical School (MHH) (Author)
  • Michael Rädel - , Department of Prosthodontics, University Hospital Carl Gustav Carus Dresden (Author)
  • Daniel R Reissmann - , University Hospital Hamburg Eppendorf (Author)
  • Franz Sebastian Schwindling - , University Hospital Heidelberg (Author)
  • Stefan Wolfart - , University Hospital Aachen (Author)
  • Matthias Kern - , Kiel University (Author)

Abstract

Purpose: To investigate the chewing efficiency of edentulous patients wearing complete dentures, treated with a single implant in the mandible, placed underneath the existing mandibular dentures, using two different loading protocols (immediate loading or conventional loading), over an observation period of 5 years. Methods: One-hundred and fifty-eight (158) edentulous seniors aged 60-89 years received an implant in the midline of the lower jaw and were randomized either to the immediate loaded group A (n=81) or the conventional loaded group B (n=77). Chewing efficiency was obtained before treatment, one month after implant placement during the submerged healing phase (only group B) and 1, 4, 12, 24 and 60 months after implant loading. Results: After 5 years, chewing tests from 89 patients (45 in the immediate loading group and 44 in the conventional loading group) were available for every recall visit and thus statistically analyzed. The chewing efficiency increased over time in both groups. A significant increase was observed up to 4 months after loading (p≤0.05). Later, chewing efficiency further increased, but not significantly. Between the two loading protocols, chewing efficiency did not differ significantly (p>0.05) at any follow-up investigation. Conclusion: A single mandibular implant placed underneath existing mandibular dentures improves chewing efficiency of edentulous patients significantly over an observation period of 5 years, irrespective of the loading protocol.

Details

Original languageEnglish
Pages (from-to)610-617
Number of pages8
JournalJournal of prosthodontic research
Volume66
Issue number4
Publication statusPublished - 7 Oct 2022
Peer-reviewedYes

External IDs

Scopus 85139514171
ORCID /0000-0002-3548-9462/work/142247456
ORCID /0000-0001-5859-2318/work/142254190

Keywords

Keywords

  • Dental Implants, Dental Prosthesis, Implant-Supported, Denture, Overlay, Immediate Dental Implant Loading, Mandible/surgery, Mastication, Randomized Controlled Trials as Topic, Treatment Outcome