Srpski arhiv za celokupno lekarstvo 2016 Volume 144, Issue 3-4, Pages: 174-180
https://doi.org/10.2298/SARH1604174N
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Outcome of orthograde endodontic retreatment - a two-year follow-up
Nešković Jelena 
(Faculty of Dental Medicine, Department of Restorative Odontology and Endodontics, Belgrade)
Živković Slavoljub (Faculty of Dental Medicine, Department of Restorative Odontology and Endodontics, Belgrade)
Medojević Milica (Faculty of Dental Medicine, Department of Restorative Odontology and Endodontics, Belgrade)
Maksimović Miloš (Faculty of Dental Medicine, Department of Prosthetics Dentistry, Belgrade)
Introduction. Endodontic retreatment is a complex intervention that requires
detailed analysis of possible reasons for failure, and flawless practical
execution of the procedure. Objective. The aim of the study was to assess the
outcome of endodontic retreatment based on clinical and radiographic criteria
after a two-year observation period. Methods. Clinical study included 49
teeth indicated for endodontic retreatment based on periapical index (PAI).
All teeth were divided into two groups. Group I comprised teeth without any
periapical lesion (PAI score of 1 and 2) while Group II consisted of teeth
with visible periapical radiolucency (PAI score of 3, 4, and 5). Endodontic
retreatment was completed in two visits with inter-appointment medication of
2% chlorhexidine and calcium hydroxide for two weeks. Outcome of endodontic
retreatment was evaluated 12-24 months after final obturation. Results.
Endodontic retreatment was successful in 93.3% in Group I after 24 months. In
Group II, successful treatment and complete healing was found in 52.9% of
teeth, whereas 14.7% of teeth showed only partial healing. However, clinical
symptomatology was not present in any of the cases. Considering the absence
of clinical signs and subjective symptoms, retreatment was successful in
67.6% of cases where chronic periapical inflammation was present. Conclusion.
Endodontic retreatment was successful in high percentage in teeth with and
without periapical lesions.
Keywords: endodontic retreatment, endodontic failure, apical periodontitis Outcome of orthograde endodontic retreatment