Factors Affecting Success and Survival Rates in Root Canal Retreatment

Factors Affecting Success and Survival Rates in Root Canal Retreatment

The aim of this study is to evaluate the effects of pre-treatment and procedural factors on survival and success rates in teeth that underwent non-surgical root canal retreatment at Trakya University, Faculty of Dentistry between 2015-2017.

Pre-treatment factors examined:

• Age
• Gender
• Presence and size of periapical lesion
• Quality of root canal obturation

Factors examined during treatment:

• Type of restoration
• Status of restoration at recall

The null hypothesis was that these factors have no effect on survival and success rate.

Patients with teeth that had undergone non-surgical recurrent root canal treatment at Trakya University, Faculty of Dentistry between 2015-2017 were invited for examination. Clinical and radiological examinations were performed on patients who agreed to participate in the study. No additional interventional procedures were performed. As a result of radiological and clinical examinations, whether the tooth was in the mouth, its clinical and radiological health, current clinical symptoms, etc. were determined.

Inclusion Criterias:

• At least 18 years old at the time of treatment
• Systemically healthy (ASA 1-2)
• Acceptable obturation quality after treatment

Exclusion Criterias:

• Precense of seperated instrument before or after treatment
• Precense of perforation before or after treatment
• Apical surgery before of before or after treatment
• Immature root development
• Two adjacent teeth which required root canal treatment or treatment
• Pregnant women