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A 20-year follow-up study of endodontic variables and apical status in a Swedish population
Department of Maxillofacial Radiology, Sunderby Sjukhus, Luleå, Sweden.ORCID iD: 0000-0001-8229-5428
2007 (English)In: International Endodontic Journal, ISSN 0143-2885, E-ISSN 1365-2591, Vol. 40, no 12, 940-948 p.Article in journal (Refereed) Published
Abstract [en]

AIM: To re-examine a population after 20 years and evaluate changes in prevalence of endodontic treatment and apical periodontitis, as well as the technical quality of root fillings.

METHODOLOGY: One hundred and fifteen out of an original 200 patients living in the northern part of Sweden were re-examined with a full mouth radiographic survey after 20 years. Frequencies of root canal treated teeth, apical periodontitis and quality parameters of root fillings were registered.

RESULTS: The frequency of root canal treated teeth increased significantly (P < 0.05) from 13.9% at the first investigation to 17.7% after 20 years. There was also a statistically significant increase (P < 0.05) in teeth with apical periodontitis from 3.3% to 6.8%. Apical periodontitis both in connection with root canal treated teeth and teeth without endodontic treatment, had increased during the follow-up period. Even though the quality of the root fillings had improved, there was no corresponding improvement of the apical status in teeth with root fillings.

CONCLUSIONS: There is still a great need for endodontic treatment in the Swedish population, and no improvement in apical health was found during this 20-year follow up.

Place, publisher, year, edition, pages
Wiley-Blackwell, 2007. Vol. 40, no 12, 940-948 p.
Keyword [en]
apical periodontitis; endodontics; epidemiology; long-term; quality
National Category
URN: urn:nbn:se:umu:diva-89543DOI: 10.1111/j.1365-2591.2007.01290.xISI: 000250796200002PubMedID: 17883402OAI: diva2:721487
Available from: 2014-06-04 Created: 2014-06-04 Last updated: 2014-06-18Bibliographically approved

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Flygare, Lennart
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