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Related Experiment Videos

Pulpal evaluation of teeth restored with fixed prostheses.

C R Jackson1, A E Skidmore, R T Rice

  • 1Department of Endodontics, West Virginia University School of Dentistry, Morgantown.

The Journal of Prosthetic Dentistry
|March 1, 1992
PubMed
Summary

Dental crowns and fixed prostheses can harm tooth pulp. This study found 5.7% of vital teeth crowned needed root canal therapy after restoration placement.

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Area of Science:

  • Dentistry
  • Prosthodontics
  • Dental Pulp Biology

Background:

  • Crown fabrication involves multiple steps, each posing a risk of pulpal insult.
  • Tooth preparation, impression techniques, temporary coverage, and final cementation can all irritate dental pulp.
  • Pre-existing dental caries and restorative procedures also contribute to pulpal injury.

Purpose of the Study:

  • To evaluate the effects of complete coverage fixed prosthetic restorations on dental pulp health.
  • To determine the incidence of pulpal issues in teeth restored with crowns and fixed partial dentures.

Main Methods:

  • A retrospective study involving 130 patients who received crowns or fixed partial dentures between 1984-1988.
  • Examination of 603 teeth for pulpal health, periodontal integrity, and restoration acceptability.
  • Analysis of 437 vital teeth that were crowned, excluding those with prior root canal therapy.

Main Results:

  • Out of 437 vital crowned teeth, 25 (5.7%) required root canal therapy post-restoration.
  • Pulpal inflammation and potential burn lesions are risks associated with tooth preparation.
  • Dentin drying during impression can reduce the odontoblastic layer, and cements can cause irritation.

Conclusions:

  • Complete coverage fixed prosthetic restorations carry a significant risk of pulpal injury.
  • A notable percentage of vital teeth require endodontic treatment after receiving crowns.
  • Careful management of all fabrication steps is crucial to minimize pulpal insult.

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