Abstract
Introduction
Post-treatment periapical lesions present 1 year after treatment may heal during the
second year or later. The aim of this study was to assess second-year volumetric changes
in post-treatment periapical radiolucencies detected 1 year after treatment.
Methods
Post-treatment periapical radiolucencies were detected on cone-beam computed tomographic
(CBCT) scans obtained from 93 single-rooted teeth 1 year after endodontic treatment.
The outcome of these teeth was evaluated 2 years after treatment. Two examiners independently
measured the volume of the radiolucencies on CBCT images twice. A Wilcoxon signed
rank test was used to assess the 1- and 2-year post-treatment volumes.
Results
The intraclass correlation coefficients for the CBCT volumetric measurements were
0.971 and 0.998 for the 2 examiners, and the interexaminer correlation coefficient
was 0.998. Of the 93 teeth with post-treatment radiolucencies at 1 year, 61were examined
at the second-year evaluation. The overall size of the radiolucencies significantly
decreased during the second year (P = .01); the volume decreased in 38 teeth (63%), remained unchanged in 20 (33%), and
increased in 2 (3%).
Conclusions
The volume of post-treatment periapical radiolucencies detected 1 year after treatment
was significantly reduced after the second year in 63% of teeth.
Key Words
To read this article in full you will need to make a payment
Purchase one-time access:
Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online accessOne-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:
Subscribe to Journal of EndodonticsAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- Time-course and risk analyses of the development and healing of chronic apical periodontitis in man.Int Endod J. 1996; 29: 150-155
- Detection of periapical bone defects in human jaws using cone beam computed tomography and intraoral radiography.Int Endod J. 2009; 42: 507-515
- Detection and measurement of artificial periapical lesions by cone-beam computed tomography.Int Endod J. 2014; 47: 332-338
- Volumetric changes in apical radiolucencies of endodontically treated teeth assessed by cone-beam computed tomography 1 year after orthograde retreatment.J Endod. 2013; 39: 1504-1509
- The detection of periapical pathosis using digital periapical radiography and cone beam computed tomography—part 2: a 1-year post-treatment follow-up.Int Endod J. 2012; 45: 711-723
- Radiographic healing after a root canal treatment performed in single-rooted teeth with and without ultrasonic activation of the irrigant: a randomized controlled trial.J Endod. 2013; 39: 1218-1225
- Area and 3-dimensional volumetric changes of periapical lesions after root canal treatments.J Endod. 2013; 39: 1245-1249
- Comparison of periapical and limited cone-beam computed tomography in mandibular molars for analysis of anatomical landmarks before apical surgery.J Endod. 2011; 37: 151-157
- A comparison of the thresholding strategies of micro-CT for periodontal bone loss: a pilot study.Dentomaxillofac Radiol. 2013; 42: 1-12
- Accuracy of chemically created periapical lesion measurements using limited cone beam computed tomography.Dentomaxillofac Radiol. 2010; 39: 95-99
- ALARA still applies.Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2005; 100: 395-397
- Accuracy of periapical radiography and cone-beam computed tomography scans in diagnosing apical periodontitis using histopathological findings as a gold standard.J Endod. 2009; 35: 1009-1012
- Limitations of previously published systematic reviews evaluating the outcome of endodontic treatment.Int Endod J. 2009; 42: 656-666
- Outcome of primary root canal treatment: systematic review of the literature—part 1. Effects of study characteristics on probability of success.Int Endod J. 2007; 40: 921-939
- Persistent, recurrent, and acquired infection of the root canal system post-treatment.Endod Topics. 2003; 6: 29-56
- Detection of the apical lesion and mandibular canal in conventional radiography and computed tomography.Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011; 92: 682-688
- Periapical lesions: types, incidence, and clinical features.Oral Surg Oral Med Oral Pathol. 1966; 21: 657-671
- Histopathological profile of surgically removed persistent periapical radiolucent lesions of endodontic origin.Int Endod J. 2009; 42: 198-202
- Reasons for persistent and emerging post-treatment endodontic disease.Endod Topics. 2011; 18: 31-50
- Imaging of extraradicular biofilm using combined scanning electron microscopy and stereomicroscopy.Microsc Res Tech. 2013; 76: 979-983
- Microbial status of apical root canal system of human mandibular first molars with primary apical periodontitis after ‘one-visit’ endodontic treatment.Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2005; 99: 231-252
- Microbiological status of root-filled teeth with apical periodontitis.Int Endod J. 1998; 31: 1-7
- Redefining the persistent infection in root canals: possible role of biofilm communities.J Endod. 2007; 33: 652-662
- New terms for categorizing the outcome of root canal treatment.Int Endod J. 2011; 44: 1079-1080
- The outcome of endodontic retreatment: a 2-yr follow-up.J Endod. 2004; 30: 1-4
- A multivariate analysis of the outcome of endodontic treatment.Eur J Oral Sci. 2004; 112: 224-230
- Outcome of primary root canal treatment: systematic review of the literature—part 2. Influence of clinical factors.Int Endod J. 2008; 41: 6-31
- The association between complete absence of post-treatment periapical lesion and quality of root canal filling.Clin Oral Investig. 2012; 16: 1619-1626
Article info
Publication history
Published online: March 30, 2015
Identification
Copyright
© 2015 Published by Elsevier Inc.
