Abstract
BackgroundTo evaluate the incidence of flare-ups and identify the risk factors including age, gender, tooth type, number of root canals, initial diagnosis, the type of irrigation regimen, treatment modality and the number of visits, in patients who received root canal treatment from January 2002 to January 2008.MethodsRecords of 1819 teeth belonging to 1410 patients treated by 1 endodontics specialist during 6-year period were kept. Patient, tooth, and treatment characteristics were evaluated and the relationships between these characteristics and flare-ups were studied. Statistical analysis was carried out by using Pearson Chi-square test, Fisher’s Exact test, and Binary Logistic regression analyses.ResultsThe incidence of flare-ups was 59 (3.2 %) out of 1819 teeth that received endodontic therapy. Pulpal necrosis without periapical pathosis was the most common indication for flare-up (6 %) (p < 0.01). Teeth undergoing multiple visits had a higher risk of developing flare-ups compared to those with single appointments (OR: 3.14, CI: 1.414–7.009, p < 0.01). There were also no statistically significant differences in the incidence of flare-ups regarding to age, gender, tooth type, number of root canals, treatment modality, and the irrigation solutions that used during the treatment.ConclusionsThe incidence of flare-up is minimal when teeth are treated in one visit. Absence of a periapical lesion in necrotic teeth is a significant risk factor for flare-ups.
Highlights
To evaluate the incidence of flare-ups and identify the risk factors including age, gender, tooth type, number of root canals, initial diagnosis, the type of irrigation regimen, treatment modality and the number of visits, in patients who received root canal treatment from January 2002 to January 2008
Each patient’s record consisted of the following data: age, gender (Table 1), tooth type, number of root canals (Table 2), pulpal and periradicular diagnosis of the tooth (Table 3), chemical agents used for irrigation (Table 4), treatment modality (Table 5), number of sessions needed to complete the root canal treatment (Table 6)
There were no statistically significant differences in the incidence of flare-ups regarding the following factors: age and gender (Table 1); tooth type and the number of root canals (Table 2); chemical agents used for irrigation (Table 4) (p > 0.05)
Summary
To evaluate the incidence of flare-ups and identify the risk factors including age, gender, tooth type, number of root canals, initial diagnosis, the type of irrigation regimen, treatment modality and the number of visits, in patients who received root canal treatment from January 2002 to January 2008. A flare-up following a root canal treatment appointment is a significant problem. The term flare-up is used commonly to describe the development of pain and or swelling which commences a few hours or days after root canal procedures and is of significant severity to require an unscheduled visit for emergency treatment [1]. Iqbal et al [2] stated that in the absence of any gold standard, and because of the variable definitions, comparison of flare-up incidence across studies is challenging. An institution may wish to undertake an internal study, identify risk factors, and perhaps change
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