Postoperative Pain After the Removal of Root Canal Filling Material

Postoperative Pain After the Removal of Root Canal Filling Material Using Different Techniques in Teeth With Failed Root Canal Therapy: A Randomized Clinical Trial

Status

Completed

Phases

Early Phase 1

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02905773

Enrollment

135

Registered

2016-09-19

Start date

2015-03-31

Completion date

2016-05-31

Last updated

2016-09-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Postoperative Pain

Keywords

Intensity

Brief summary

The aim of this study was to evaluate the intensity and duration of postoperative pain after the removal of root canal filling material in retreatment procedures of upper incisor teeth with chronic apical periodontitis, using different techniques. The patients were assigned to three groups of 45 patients, according to the method used to remove old canal filling material. The presence of postoperative pain was assessed after 6, 12, 24, 48, and 72 hours, 7 days, and finally after 10 days. The hypothesis of this study: there would be no difference in postoperative pain intensity among the groups.

Interventions

OTHERroot canal therapy

effect of devices ( ProTaper and Reciprocal Files)

OTHERroot canal retreatment

effect of devices ( ProTaper and Reciprocal Files)

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Masking

DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender

ALL

Healthy volunteers

Yes

Inclusion criteria

* asymptomatic incisor teeth with chronic apical periodontitis * patients between 18-55 years of age

Exclusion criteria

* patients with systemic disease

Design outcomes

Primary

Measure	Time frame
postoperative pain after non-surgical endodontic retreatment using modified visual analog scale	10 days

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026