Document Detail

Incidence and factors related to flare-ups in a graduate endodontic programme.
MedLine Citation:
PMID:  19134037     Owner:  NLM     Status:  MEDLINE    
AIM: To investigate the incidence and factors related to endodontic flare-ups in nonsurgical root canal treatment (NSRCT) cases completed by graduate endodontic residents at University of Pennsylvania, USA. METHODOLOGY: Residents at University of Pennsylvania enter all clinical patient records into an electronic database called PennEndo database. Analysis of records of 6580 patients treated from September 2000 to July 2005 revealed a total of 26 patients with flare-ups (0.39%). Patients were categorized to have undergone flare-up when they attended for an unscheduled visit and active treatment, and when they suffered from severe pain and or swelling after initiation or continuation of NSRCT. SAS software was used to develop a logistic regression model with flare-up as a dependent variable. Independent variables included in the model were: history of previous pain, one vs. two visit NSRCT, periapical diagnosis, tooth type, rotary versus hand instrumentation, and lateral versus vertical compaction of gutta-percha. RESULTS: The odds for developing a flare-up in teeth with a periapical radiolucency were 9.64 times greater than teeth without a periapical radiolucency (P = 0.0090). There was no statistically significant difference in flare-ups between one and two visits NSRCT. The odds of developing a flare-up increased 40 fold when NSRCT was completed in three or more visits. However, this result may have been confounded by addition of an unscheduled visit in patients suffering from flare-ups. Other independent variables did not have any statistically significant correlations. CONCLUSIONS: A low percentage of patients experienced flare-ups during NSRCT procedures. The presence of a periapical lesion was the single most important predictor of flare-ups during NSRCT.
M Iqbal; E Kurtz; M Kohli
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International endodontic journal     Volume:  42     ISSN:  1365-2591     ISO Abbreviation:  Int Endod J     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-01-12     Completed Date:  2009-04-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8004996     Medline TA:  Int Endod J     Country:  England    
Other Details:
Languages:  eng     Pagination:  99-104     Citation Subset:  D    
Department of Endodontics, University of Pennsylvania, School of Dental Medicine, Robert Schattner Centre, PA 19104-6030, USA.
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MeSH Terms
Cohort Studies
Dental Alloys
Edema / etiology
Education, Dental, Graduate*
Endodontics / education*
Equipment Design
Gutta-Percha / therapeutic use
Internship and Residency
Periapical Periodontitis / diagnosis,  therapy
Retrospective Studies
Risk Factors
Root Canal Filling Materials / therapeutic use
Root Canal Preparation / instrumentation,  methods
Root Canal Therapy / adverse effects*,  statistics & numerical data
Stainless Steel
Time Factors
Toothache / etiology
Treatment Outcome
Reg. No./Substance:
0/Dental Alloys; 0/Root Canal Filling Materials; 12035-60-8/titanium nickelide; 12597-68-1/Stainless Steel; 7440-02-0/Nickel; 7440-32-6/Titanium; 9000-32-2/Gutta-Percha

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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