Rehabilitation of shortened dental arches: A fifteen-year randomised trial

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Michael H. Walter - , University Hospital Carl Gustav Carus Dresden (Author)
  • Birgit Marré - , Department of Prosthodontics, University Hospital Carl Gustav Carus Dresden (Author)
  • Jens Dreyhaupt - , Ulm University Medical Center (Author)
  • Guido Heydecke - (Author)
  • Angelika Rauch - (Author)
  • Torsten Mundt - , Greifswald University Hospital (Author)
  • Wolfgang Hannak - , Center for Dental and Craniofacial Sciences (Author)
  • Ralf Joachim Kohal - , University Medical Center Freiburg (Author)
  • Matthias Kern - , Kiel University (Author)
  • Frank Nothdurft - , University Hospital of Saarland (Author)
  • Sinsa Hartmann - , Johannes Gutenberg University Mainz (Author)
  • Klaus Böning - , Department of Prosthodontics, University Hospital Carl Gustav Carus Dresden (Author)
  • Julian Boldt - , University of Würzburg (Author)
  • Helmut Stark - , University of Applied Sciences of the Sparkassen-Financial Group - Bonn (Author)
  • Daniel Edelhoff - , Hospital of the Ludwig-Maximilians-University (LMU) Munich (Author)
  • Bernd Wöstmann - , Justus Liebig University Giessen (Author)
  • Stefan Wolfart - (Author)
  • Florentine Jahn - , Jena University Hospital (Author)
  • Ralph Gunnar Luthardt - , Center of Dentistry (Author)

Abstract

BACKGROUND: Few long-term studies on treatments in the shortened dental arch (SDA) are available.

OBJECTIVE: The objective of this trial was to analyse the long-term success of two different treatment concepts.

METHODS: Patients over 35 years of age with missing molars in one jaw and at least the canine and one premolar present on both sides were eligible. In the partial removable dental prosthesis (PRDP) group (N = 81), molars and missing second premolars were replaced by a precision attachment retained prosthesis. In the SDA group (N = 71), the dental arch ended with the second premolar that had to be present or replaced by a cantilever fixed dental prosthesis. Follow-up examinations were carried out over 15 years.

RESULTS: A comprehensive outcome variable comprised four failure categories for which Kaplan-Meier survival (success) analyses were conducted. Half of the patients exhibited a continuous preservation of the per protocol prosthetic status that remained totally unaffected by complications for more than 10 years. The event-free success rates for moderate or worse failure implied a loss of the per protocol prosthetic status. The respective survival rates fell below 50% at 14.2 years in the PRDP group and 14.3 years in the SDA group. In none of the analyses, a significant group difference was found.

CONCLUSIONS: In patients with an SDA condition, changes in the prosthetic status have to be expected. The affected proportion increases almost linearly from shortly after treatment and comprises the majority after 15 years. The influence of the examined treatments on success appears to be low.

Details

Original languageEnglish
Pages (from-to)738-744
Number of pages7
JournalJournal of oral rehabilitation
Volume48
Issue number6
Publication statusPublished - Jun 2021
Peer-reviewedYes

External IDs

Scopus 85102734761
ORCID /0000-0001-8911-0801/work/149797937

Keywords

Keywords

  • Bicuspid, Dental Arch, Denture, Partial, Removable, Humans, Jaw, Edentulous, Partially, Tooth Loss