Outcomes of root resection therapy up to 16.8 years: A retrospective study in an academic setting

Madi Alassadi, Musa Qazi, Andrea Ravidà, Rafael Siqueira, Carlos Garaicoa-Pazmiño, Hom Lay Wang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Background: Root resection has been considered a viable treatment option for molars with furcation defects. However, need of a multidisciplinary approach could potentially deem this procedure less successful. The aim of the present article was to determine survival rates of root resection procedure and reasons for failure in an academic setting. Methods: Patient-related demographic data, medical history information, and relevant data pertaining to the root-resected teeth performed from January 1990 to September 2017 were reviewed through electronic and paper chart. Survival rates were analyzed using Kaplan-Meier estimate. Association between the reasons for failure and independent variables was established by a Pearson Chi-squared and Kruskal-Wallis test. Results: A total of 85 patients with an average follow-up of 5 ± 4.3 years (range: 1 to 16.8 years) were included in the present article. A total of 47 molar teeth treated with root resection remained as part of the dentition (55.3%) and 38 (44.7%) failed. The mean survival time with the Kaplan-Mayer analysis was 109.9 months (9.1 years). Fracture (39.5%), caries (26.3%), and periodontal disease (23.7%) were the most common causes for failure. Interestingly, the majority of failures occurred in the first 4 years after therapy (n = 31; 81.5% of all failures). Conclusions: Root resection therapy remains a treatment solution for molars with furcation defects. In an academic setting, >50% of teeth remained functional after 9 years of root resection therapy.

Original languageEnglish (US)
Pages (from-to)493-500
Number of pages8
JournalJournal of periodontology
Issue number4
StatePublished - Apr 1 2020
Externally publishedYes


  • furcation lesions and treatment
  • periapical diseases
  • periodontal surgery
  • periodontitis
  • prognosis
  • tooth loss
  • tooth root

ASJC Scopus subject areas

  • Periodontics


Dive into the research topics of 'Outcomes of root resection therapy up to 16.8 years: A retrospective study in an academic setting'. Together they form a unique fingerprint.

Cite this