2026-06-01T07:36:12Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/1150442025-03-18T13:16:41Zcom_20.500.14352_14col_20.500.14352_15

Is it possible to predict neurosensory alterations in impacted lower third molar removal based on preoperative imaging procedures? A prospective cohort study Pérez-González, F Sánchez-Labrador, L Cortés Bretón Brinkmann, Jorge Sáez-Alcaide, L-M Bazal-Bonelli, S Madrigal Martínez-Pereda, Cristina María López-Quiles Martínez, Juan 616.314-089 616-073 611.8 Impacted lower third molar Inferior alveolar nerve Sensitivity alterations Panoramic radiographs Cone bean computed tomography Cirugía bucofacial Diagnóstico por imagen y medicina nuclear Neurociencias (Medicina) 3213.13 Ortodoncia-Estomatología 3213 Cirugía 2209.90 Tratamiento Digital. Imágenes 2410.09 Neuroanatomía Humana Background: Surgical extraction of the lower third molar (LTM) may trigger neurosensory injury of the inferior alveolar nerve, making extraction a real challenge. This study set out to assess whether is it possible to predict neurosensory alterations from preoperative imaging. Material and methods: A total of 99 patients underwent 124 impacted lower third molar (ILTM) surgeries. Prior to surgery, panoramic and CBCT images were evaluated in an attempt to predict a neurosensory disturbance. Preoperative data (ILTM position, panoramic radiograph signs, inferior alveolar nerve (IAN) location and its contact with the ILTM roots) and intra/postoperative findings (extraction difficulty and sensitivity alterations) were recorded. Descriptive and bivariate data analysis was performed. Statistical comparison applied the chi-square test, Fisher test, and one-way ANOVA test. Statistical significance was established with a confidence interval (CI) of 95%. Results: In 4.03% of cases, patients experienced neurosensory alterations. Of 124 ILTM positions in panoramic radiographs, 76 cases were considered to exhibit a potential neurosensory risk as they presented two or more types of superimposed relationships between ILTM and mandibular canal. Of these, alterations were reported in only three cases (3.95%). Of the 48 remaining ILTM images presenting only one sign, neurosensory alterations were observed in two cases (4.17%). No permanent alterations were recorded in any of the five cases observed. Conclusions: Within the limitations of the present study, prediction of neurosensory alterations prior to ILTM extraction by means of preoperative imaging did not show a significant statistical correlation with post-surgical incidence. Nevertheless, interruption of the canal´s white line (ICWL) or a diversion of the canal (DC) may predict an increased risk of IAN injury. Depto. de Especialidades Clínicas Odontológicas Fac. de Odontología TRUE pub 2025-01-20T10:18:14Z 2025-01-20T10:18:14Z 2024-01 journal article VoR https://hdl.handle.net/20.500.14352/115044 1698-4447 10.4317/medoral.26056 1698-6946 eng Pérez-González F, Sánchez-Labrador L, Cortés-Bretón-Brinkmann J, Sáez-Alcaide LM, Bazal-Bonelli S, Madrigal-Martínez-Pereda C, López-Quiles J. Is it possible to predict neurosensory alterations in impacted lower third molar removal based on preoperative imaging procedures? A prospective cohort study. Med Oral Patol Oral Cir Bucal. 2024 Jan 1;29(1):e44-e50. doi: 10.4317/medoral.26056 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ open access application/pdf Medicina Oral