Prevalence of apical periodontitis of root canal–treated teeth and retrospective evaluation of symptom-related prognostic factors in an urban South Korean population

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• 作者：Seonah Kim
• 刊名：Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology
• 出版年：2010
• 出版时间：December 2010
• 年：2010
• 卷：110
• 期：6
• 页码：795-799
• 全文大小：158 K

文摘

Objectives

This study aimed to investigate the prevalence of apical periodontitis among root canal–treated teeth in an urban South Korean population and evaluate prognostic factors for periapical radiolucency and its symptoms.

Study design

The periapical status of 896 root canal–treated teeth was evaluated by using digital panoramic radiography. Five prognostic factors were analyzed: length and density of the root filling, presence of crown restoration, probability of unilateral bite, and presence of missing canals.

Results

The prevalence of apical periodontitis among root canal–treated teeth in the study population was 22.8 % , and 29.3 % of these teeth had received dental treatment for pain relief. Evaluation of the prognostic factors indicated that inadequacy of endodontic treatment was more predictive of apical periodontitis than the absence of a crown restoration.

Conclusion

Inadequate root filling length appeared to be the most important prognostic factor related to apical periodontitis and its acute symptoms among root canal–treated teeth.