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Related Experiment Videos

Excessive heat-associated gingival necrosis: a case report.

P L Barnes1,2, G Rossi-Fedele3

  • 1Ringley Park Dental Practice, Reigate, Surrey, UK.

Australian Dental Journal
|April 19, 2017
PubMed
Summary

A dental patient experienced gingival necrosis after root canal retreatment due to excessive heat from a dental heat source. Fortunately, the soft tissues fully recovered within two years without intervention.

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Area of Science:

  • Endodontics
  • Periodontics
  • Dental Materials

Background:

  • Heat-delivery devices in dentistry can reach high temperatures.
  • Prior research indicated minimal risk to periodontal tissues from heat during root canal procedures.
  • Root filling materials are thought to mitigate overheating risks.

Observation:

  • A 45-year-old male patient underwent orthograde root canal retreatment for a maxillary left incisor.
  • During the procedure, a System B Heat Source was used to sever core material after cold lateral compaction.
  • The patient reported immediate pain and a burning sensation.

Findings:

  • Gingival necrosis was observed on the central incisor the following day.
  • Excessive heat during the procedure was identified as the likely cause of the complication.
Keywords:
Adverse heat effectgingival necrosisheatheat sourcesroot canal obturation

Related Experiment Videos

  • The patient's soft tissues fully regenerated over a 2-year follow-up period.

    • Implications:

    • This case highlights a potential risk of thermal injury to gingival tissues during endodontic procedures.
    • Careful control of heat application is crucial to prevent complications.
    • Despite initial necrosis, complete soft tissue healing is possible without periodontal treatment.