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Extension and Density of Root Fillings and Postoperative Apical Radiolucencies in the Veterans Affairs Dental Longitudinal Study
Journal article   Open access   Peer reviewed

Extension and Density of Root Fillings and Postoperative Apical Radiolucencies in the Veterans Affairs Dental Longitudinal Study

Yan Zhong, Joel Chasen, Ryan Yamanaka, Raul Garcia, Elizabeth Krall Kaye, Jay S Kaufman, Jianwen Cai, Tim Wilcosky, Martin Trope and Daniel J Caplan
Journal of Endodontics, Vol.34(7), pp.798-803
2008
DOI: 10.1016/j.joen.2008.03.022
PMID: 18570982
url
http://doi.org/10.1016/j.joen.2008.03.022View
Open Access

Abstract

We evaluated the association between radiographically assessed extension and density of root canal fillings and postoperative apical radiolucencies (ARs) by using data from 288 participants in the Veterans Affairs Dental Longitudinal Study. Study subjects were not Veterans Affairs patients; all received their medical and dental care in the private sector. Generalized estimating equations were used to account for multiple teeth within subjects and to control for covariates of interest. Defective root filling density was associated with increased odds of postoperative AR among teeth with no preoperative AR (odds ratio, 3.0; 95% confidence interval [CI], 1.3–7.1), although preoperative AR was the strongest risk factor for postoperative AR (odds ratio, 29.2; 95% CI, 13.6–63.0 among teeth with ideal density). Compared with well-extended root fillings, neither overextended nor underextended root fillings separately were related to postoperative AR, but when those 2 categories were collapsed into one poorly extended category, poor extension was related to postoperative AR (odds ratio, 1.8; 95% CI, 1.1–3.2).
epidemiology periapical periodontitis Endodontics root canal therapy longitudinal studies

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