Endodontic retreatment is performed to alleviate symptoms of recurring infection, post-treatment disease after primary endodontic therapy. Retreatment can be performed in either single or multiple visits. and have their own implications. it is important to compare the patient response and post-op pain after single vs multi-visit reendo treatment.

Introduction:

Treating endodontic failure cases has always been a challenge for the clinician due to the complex nature of disease which includes resistant microorganisms, iatrogenic errors and cleaning and shaping of un-instrumented areas. Endodontic retreatment can be done in either single or multiple visits. Multiple visits have the added advantage of placement of intracanal medicament resulting in decreased bacterial load and reduced pain, whereas single visit endodontic retreatment reduces chances of inter appointment microbial contamination. This study aims to evaluate post operative pain among both groups.

Objective:

To evaluate frequency of post-operative pain in endodontic retreatment cases after single vs multiple (two) visits root canal therapy.

Materials and Methods:

STUDY SETTING: Department of Operative Dentistry, AFID Rawalpindi.

Inclusion Criteria:

• Patients with unremarkable/ noncontributory medical history
• Age range between 15-45 years
• Cases of failed endodontic treatment resulting from inadequate root filling
• No systemic disease
• No periodontal disease

Exclusion Criteria:

• Patients having teeth with periodontal pathology
• root fractures
• Immature root apices
• Endodontic posts
• Root perforations
• Immunocompromised health were excluded from the study.