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Predictive factors of difficulty in lower third molar extraction: a prospective cohort study
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BACKGROUND: Several publications have measured the difficulty of third molar removal, trying to establish the main risk factors, however several important preoperative and intraoperative variables are overlooked. MATERIAL AND METHODS: A prospective cohort study comprising a total of 130 consecutive lower third molar extractions was performed. The outcome variables used to measure the difficulty of the extraction were operation time and a 100mm visual analogue scale filled by the surgeon at the end of the surgical procedure. The predictors were divided into 4 different groups (demographic, anatomic, radiographic and operative variables). A descriptive, bivariate and multivariate analysis of the data was performed. RESULTS: Patients' weight, the presence of bulbous roots, the need to perform crown and root sectioning of the lower third molar and Pell and Gregory 123 classification significantly influenced both outcome variables (p< 0.05). CONCLUSIONS: Certain anatomical, radiological and operative variables appear to be important factors in the assessment of surgical difficulty in the extraction of lower third molars.
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ALVIRA GONZÁLEZ, Joaquín, BARBOSA DE FIGUEIREDO, Rui pedro, VALMASEDA CASTELLÓN, Eduardo, QUESADA GÓMEZ, Carmen, GAY ESCODA, Cosme. Predictive factors of difficulty in lower third molar extraction: a prospective cohort study. _Medicina Oral_. Patología Oral y Cirugía Bucal. Vol. 2017, núm. 22, pàgs. 1. [consulta: 21 de gener de 2026]. ISSN: 1698-4447. [Disponible a: https://hdl.handle.net/2445/120346]