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Postprocedural problems in an overdenture population: a longitudinal study.

Ronald L Ettinger1, Fang Qian

  • 1Department of Prosthodontics and Dows Institute for Dental Research, University of Iowa, Iowa City, IA 52242, USA. ronald-ettinger@uiowa.edu

Journal of Endodontics
|April 27, 2004
PubMed
Summary
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Endodontically treated teeth in overdenture patients rarely had issues, but when problems occurred, they were often periradicular lesions or root fractures. Improved oral hygiene and protective crowns can prevent many complications.

Area of Science:

  • Dentistry
  • Endodontics
  • Prosthodontics

Background:

  • Overdentures provide a stable prosthesis but rely on abutment teeth.
  • Endodontic treatment is common for overdenture abutments.
  • Long-term complications of endodontically treated teeth supporting overdentures require evaluation.

Purpose of the Study:

  • To report on endodontic and other post-procedural problems in overdenture patients.
  • To identify the incidence and types of complications.
  • To suggest preventive measures.

Main Methods:

  • Longitudinal study of overdenture patients from 1973 to 1996.
  • Recall examination of 273 subjects with 666 abutments.
  • Analysis of post-procedural problems in 626 endodontically treated teeth.

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Main Results:

  • 12.9% of endodontically treated teeth experienced post-procedural problems.
  • Most common issues: periradicular lesions (37.0%) due to recurrent caries and vertical root fractures (30.9%).
  • Retreatment was successful in 20 of 30 teeth; 87.1% had no complications.

Conclusions:

  • Endodontic complications in overdenture abutments are relatively infrequent but significant.
  • Recurrent caries and vertical root fractures are key concerns.
  • Enhanced oral hygiene and protective restorations (e.g., thimble crowns) can mitigate risks.