Survival analysis of endodontically treated traumatized primary teeth

Area of Science:

• Pediatric Dentistry
• Endodontics
• Dental Traumatology

Background:

• Traumatized primary teeth require effective endodontic management to preserve their function.
• Factors influencing the success of endodontic treatment in young children are not fully understood.
• Establishing treatment protocols is crucial for managing dental trauma in primary dentition.

Purpose of the Study:

• To identify factors affecting endodontic treatment success in traumatized primary teeth.
• To determine the success rate of endodontic treatment using survival analysis.
• To evaluate the long-term outcomes of endodontic interventions in pediatric dental trauma.

Main Methods:

• Retrospective analysis of 51 dental records of primary teeth treated endodontically.
• Evaluation of factors including patient age, trauma severity, root and bone resorption, pulp status, and trauma recurrence.
• Survival analysis and chi-squared tests were employed to assess treatment success and influencing factors.

Main Results:

• Trauma recurrence in the same tooth was identified as a significant factor for endodontic treatment failure (chi(2) = 9.594, P < 0.05).
• Endodontic treatment success levels stabilized by the 19th month post-treatment.
• Most treatment failures occurred between 7 and 12 months after the initiation of endodontic therapy.

Conclusions:

• Endodontic treatment, when performed according to established protocols, effectively maintains traumatized primary teeth until physiological root resorption.
• Repeated trauma to the same tooth is a critical determinant of endodontic treatment failure.
• Survival analysis indicates a predictable success curve, stabilizing after 19 months, with a critical failure window between 7-12 months.