Pain Clinical Trial
Official title:
Postoperative Pain After Removal of Gutta-percha From Root Canals in Endodontic Retreatment Using a Solvent
No clinical evidence has been yet published regarding the comparison of postoperative pain after removal of the root canal fillings with or without solvent. The aim of this study was to evaluate the effect of combined usage of ProTaper retreatment instruments and a gutta-percha solvent, on the postoperative pain intensity after retreatment.
Scientific literature contains a few studies regarding the amount of apically extruded debris
caused by solvent or solvent free use of rotary instruments. It was reported that the use of
ProTaper retreatment instruments in combination with gutta-percha solvent reduced the amount
of apically extruded debris compared to their solvent free use. Nevertheless,no clinical
evidence has been yet published regarding the comparison of postoperative pain after removal
of the root canal fillings with or without solvent. The aim of this study was to evaluate the
effect of combined usage of ProTaper retreatment instruments and gutta-percha solvent, on the
postoperative pain intensity after retreatment. The adult patients (18-59 ages) who referred
to Department of Endodontics with a diagnose of failed root canal treatment were examined
radiographically and clinically. Endodontically treated, clinically asymptomatic,
single-rooted teeth with one canal exhibiting chronic periapical infection were included. A
hundred cases who matched the determined criteria were selected and randomly allocated to two
groups:
Non-solvent Group (n=50):
ProTaper retreatment instruments were used in combination with with X-Smart electric motor
for the removal of root canal fillings.
Solvent Group (n=50):
ProTaper retreatment instruments were used with the abovementioned technique but in
combination with a gutta-percha solvent
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