Epidemiological evaluation of the outcomes of initial root canal therapy in permanent teeth of a publicly insured paediatric population

Lorel E. Burns, Kelly Terlizzi, Claudia Solis-Roman, Yinxiang Wu, Asgeir Sigurdsson, Heather T. Gold

Research output: Contribution to journalArticlepeer-review


Background: Previously published epidemiological outcome studies of nonsurgical root canal therapy (NSRCT) in the United States utilize data only from a single, private dental insurer for adult populations. Aim: This study aimed to investigate the outcomes of initial NSRCT, performed on permanent teeth, in a publicly insured paediatric population. Design: New York State Medicaid administrative claims were used to follow 77 741 endodontic procedures in 51 545 patients aged 6–18, from the time of initial NSRCT until the occurrence of an untoward event (retreatment, apicoectomy, and extraction). The initial treatment and untoward events were identified by Current Dental Terminology codes. The Kaplan–Meier survival estimates were calculated at 1, 3, and 5 years. Hazard ratios for time to permanent restoration and restoration type were calculated using the Cox proportional hazards model. Results: The median follow-up time was 44 months [range: 12–158 months]. Procedural, NSRCT, survival was 98% at 1 year, 93% at 3 years, and 88% at 5 years. Extraction was the most common untoward event. Teeth permanently restored with cuspal coverage had the most favorable treatment outcomes. Conclusions: Overall, 89% of teeth were retained and remained functional over a minimum follow-up time of 5 years. These results elucidate the expected outcomes of NSRCT in permanent teeth for paediatric patients with public-payer dental benefits.

Original languageEnglish (US)
Pages (from-to)745-755
Number of pages11
JournalInternational Journal of Paediatric Dentistry
Issue number5
StatePublished - Sep 2022


  • endodontics
  • medicaid
  • paediatric dentistry
  • root canal therapy
  • survival analysis
  • treatment outcomes
  • Humans
  • Treatment Outcome
  • Retreatment
  • Root Canal Therapy/methods
  • Adult
  • Medicaid
  • Child

ASJC Scopus subject areas

  • General Dentistry


Dive into the research topics of 'Epidemiological evaluation of the outcomes of initial root canal therapy in permanent teeth of a publicly insured paediatric population'. Together they form a unique fingerprint.

Cite this