Factors Affecting Success and Survival Rates in Root Canal Retreatment

NCT07005492 | Completed

• 1 other identifier: TUTF-2023\228
• Study Type: interventional
• Target: 408
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Root Canal Therapy; Root Canal Retreatment

Keywords

root canal retreatment; non-surgical root canal treatment; survival; success

Outcome Measures

Primary Outcomes (2)

• Survival rate

  Survival Rate: Survival was assessed whether the tooth was in the mouth or not. Survival was scored positive if the tooth was in the mouth, regardless of the health status of the tooth in the clinical and radiological examination at the follow-up appointment.

  78.47 ± 10.48 months after treatment

• Success rate

  Success Rate: Scored as successful or unsuccessful according to the following effects according to the clinical and radiological examinations; restoration status, health of the periapical tissues, presence of swelling and/or the sinus tract. Success: The tooth had no clinical signs or symptoms, and the radiographs revealed complete resolution of periapical lesion Failure: The size of the periapical lesion was unchanged or increased or not completely healed, with or without clinical signs or symptoms

  78.47 +10.48 months

Study Arms (1)

Radiological and clinical examination

OTHER

The patients were examined radiologically and clinically.

Diagnostic Test: radiological and clinical examination

Interventions

radiological and clinical examination DIAGNOSTIC_TEST

Standard radiological (periapical radiography) and clinical (inspection, percussion, palpation tests etc.) examinations were performed.

Radiological and clinical examination

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

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

You may not qualify if:

• 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

Sponsors & Collaborators

• Trakya University: lead

Study Sites (1)

Trakya University, Faculty of Dentistry

Edirne, Merkez, 22061, Turkey (Türkiye)

Location

MeSH Terms

Interventions

Physical Examination

Intervention Hierarchy (Ancestors)

Diagnostic Techniques and Procedures; Diagnosis

Study Officials

• Burhan Can Çanakçş, Associate professor

  Trakya University, Faculty of Dentistry, Department of Endodontics

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: DIAGNOSTIC
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor

Study Record Dates

• First Submitted: January 13, 2025
• First Posted: June 5, 2025
• Study Start: June 1, 2023
• Primary Completion: June 1, 2023
• Study Completion: March 1, 2024
• Last Updated: June 5, 2025

Record last verified: 2025-01

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)