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Coronal leakage and treatment failure

¹Department of Conservative Dental Surgery, United Medical and Dental Schools, Guy's Hospital, London, England.

Journal of Endodontics

|March 1, 1995

Summary

Undiagnosed coronal leakage from faulty fillings and decay caused endodontic treatment failure. Replacing fillings and removing decay successfully resolved symptoms and completed root canal therapy.

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Area of Science:

Dentistry
Endodontics
Restorative Dentistry

Background:

Endodontic treatment aims to save teeth by removing infection from the root canal system.
Coronal leakage, the ingress of bacteria or fluids from the mouth into the root canal system, is a significant cause of endodontic failure.
Deficient restorations and secondary caries are common sources of coronal leakage.

Observation:

A case of persistent symptoms and endodontic treatment failure was reported.
The failure was attributed to undiagnosed coronal leakage originating from deficient composite resin fillings and secondary caries.
Repeated endodontic cleaning and dressing procedures failed to resolve contamination and symptoms.

Findings:

Diagnosis revealed coronal leakage as the primary cause of endodontic failure.
The deficient composite resin fillings and underlying secondary caries were identified as the sources of leakage.
Successful treatment involved replacing the faulty restorations and eliminating the caries.

Implications:

This case highlights the critical importance of diagnosing and managing coronal leakage in endodontic treatment.
Proper diagnosis and timely intervention, including restorative work, are essential for successful endodontic outcomes.
Preventing coronal leakage through high-quality restorations is key to long-term endodontic success.

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