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Nonsurgically retreated root filled teeth--radiographic findings after 20-27 years
1Department of Odontology-Endodontics, School of Dentistry, University of Bergen, Norway. inge.fristad@odont.uib.no
International Endodontic Journal
|January 14, 2004
Summary
Long-term follow-up of root canal treatment shows that many teeth with periapical radiolucencies, particularly those with overfilling, heal over time. Extended observation periods reveal a high success rate for nonsurgically retreated teeth.
Area of Science:
- Endodontics
- Dental Radiology
- Oral Surgery
Background:
- Nonsurgical root canal retreatment is a common dental procedure.
- Assessing long-term outcomes of root canal treatment is crucial for treatment evaluation.
Purpose of the Study:
- To evaluate periapical changes in teeth after nonsurgical root canal retreatment.
- To determine the healing potential of periapical lesions over an extended period (20-27 years).
Main Methods:
- Radiographic evaluation of 112 roots in 70 individuals 20-27 years post-retreatment.
- Comparison with previous radiographic data from 10-17 years after treatment.
- Retrospective analysis of reasons for tooth extraction.
Main Results:
- 95.5% of cases showed a normal periapical condition at the final follow-up.
- Delayed healing was observed in cases with surplus root filling material.
- Endodontic failure was a minor reason for extraction.
Conclusions:
- Extending follow-up periods for root canal treatment enhances the assessment of success rates.
- Asymptomatic periapical radiolucencies, especially with overfill, often indicate delayed healing rather than failure.