Artaza L, Campello AF, Soimu G, Alves FRF, Rôças IN, Siqueira JF. Outcome of nonsurgical root canal treatment of teeth with large apical periodontitis lesions: a retrospective study.
J Endod 2024:S0099-2399(24)00441-2. [PMID:
39151889 DOI:
10.1016/j.joen.2024.08.003]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 08/07/2024] [Accepted: 08/07/2024] [Indexed: 08/19/2024]
Abstract
INTRODUCTION
This study reported on the outcome of the nonsurgical root canal treatment/retreatment of teeth with large apical periodontitis lesions. The influence of some variables on the prognosis was also evaluated.
METHODS
The study included 199 teeth with large apical periodontitis lesions from 184 patients, treated/retreated bya single operator. Most teeth were managed in a single visit using NaOCl irrigation. Cases were followed up periodically from >1 to 8 years. Treatment/retreatment outcome was evaluated by clinical and radiographic/tomographic criteria and categorized as healed, healing, or diseased. For statistical analysis, data were dichotomized in such a way that healing cases were considered as success in a loose criterion or failure in a rigid one.
RESULTS
Clinical/radiographic analyses revealed that 67% of the initial treatment cases were classified as healed, 22.5% as healing, and 11% as diseased. Treatment success rates were 89% (loose) and 67% (rigid). Variables that influenced the treatment outcome included previous abscess and antibiotic use, very large lesions (> 10 mm), and a sinus tract. The median follow-up time for treatment was 31.5 months. As for retreatment cases, 47% were healed, 32% were healing, and 21% were diseased. Retreatment success rates were 79% (loose) and 47% (rigid), in a median follow-up of 32 months. Cases evaluated by cone-beam computed tomography had higher failure rates.
CONCLUSIONS
Findings demonstrate that high favorable outcome rates can be achieved by nonsurgical root canal treatment or retreatment of teeth with large apical periodontitis lesions.
Collapse