Apical Periodontitis Clinical Trial
Official title:
Outcome Following Single-visit And Multiple-visit Nonsurgical Endodontic Retreatment
This study will compare the outcome of single visit retreatment and multi-visit retreatment in cases of failed root canal treated teeth.
Retreatment is defined as a procedure to remove root canal filling materials from the tooth,
followed by cleaning, shaping and obturating the canals.Although initial root canal therapy
has been shown to be a predictable procedure with a high degree of success, failures can
occur after treatment. Recent publications have reported failure rates of 14%-16% for initial
root canal treatment. In order to prevent tooth loss in such cases, nonsurgical retreatment
or apical surgery is often indicated.
In this study subjects will be assigned to either the single-visit and multi-visit
nonsurgical endodontic retreatment. The allocation will be performed once the chemomechanical
preparation is completed.
Clinical and radiographic success rate will be considered as primary outcome. Follow up will
be carried out every 3 months, till 12-month period.
Pain intensity will be considered as secondary outcome.
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