Artículo de revisión

Published on 4 de abril de 2024 | http://doi.org/10.5867/medwave.2024.03.2780

Clinical and radiographic characterization of external root resorption

Back to article
Radiographic characteristics in articles included in the review.
Author and yearType of studyRadiographic characteristicsConclusions
Llamas-Carrera J, 2012 [18]Case-controlRRES:Apical diminution of approximately 2.5 millimeters.There was no significant difference in the amount or severity of superficial external root resorption during orthodontic movement between incisors with obturated roots and their teeth with vital pulps.
Takeshita WM, 2015 [3]Retrospective studyApical distortionRoot length decreaseVolumetric changesThe study demonstrated that CBCT showed the best results in diagnosing ERR. The diagnosis of ERR was the least accurate, with panoramic radiography being inadequate for diagnosis. CBCT and conventional periapical radiography obtained similar results for its evaluation.
Samandara A, 2019 [19]Systematic revisionLinear and volumetric changes of the root. Alveolar bone loss.CBCT appears reliable for examining orthodontically induced external root resorption during or at the end of orthodontic treatment. Although the average ERR measured with CBCT seems to lack clinical relevance, certain factors may affect it.
Marinescu I, 2019 [20]Cohort studyFunnel-shaped root apex; the alveolar bone shows a diffuse radiolucency that appeared to be the image of a chronic diffuse apical periodontitis.The description of the radiological aspects of the different types of root resorption on the panoramic digital radiograph allows a quicker diagnosis. Even so, in some cases, CBCT may be recommended to confirm the diagnosis.
Pustułka K, 2021[21]Cohort studyLoss of root lengthChanges in root morphologyThe prevalence of external root resorption in teeth under orthodontic forces occurs mainly in anterior teeth, predominantly incisors.
Ferreira M, 2022 [22]Observational cross-sectional studyRREC: hypodense or hyperdense image, diffuse margins, extension from the crown to the apical third of the root.The prevalence of cervical resorption was 1.35%, with a higher prevalence in male patients. Mandibular and maxillary central incisors were the most commonly affected teeth.
Dao V,2023 [23]Observationalcross-sectional studyERRR: lesion in the coronal third.IER: radiolucent defect along the apical and middle third of the root surface with or without root involvement. Flattening of the root apex.CER: effacement of the periodontal ligament space and the lamina dura, with localized fusion of the tooth with the bone.This study demonstrated a high rate of root resorption and, in particular, a high rate of radiographic finding of resorption. Systematic evaluation, early diagnosis, and astute intervention are recommended for optimal prognosis.
Baena de la Iglesia T, 2023 [24]Systematic reviewRoot crater: volume, area, total or partial mineral loss changes.The highest and lowest sensitivity and specificity of CBCT for diagnosing external root resorption are 42 to 98% and 49.3 to 96.3%. The minimum and maximum effective doses of dental CBCT for diagnosing external root resorption are 34 μSv and 1073 μSv.

Abbreviations: ERR, external root resorption. μSv, microsievert. IER, inflammatory external root resorption. CBCT, cone beam computed tomography. CER, cervical external root resorption. ERRR, external root resorption replacement.

Source: Prepared by the authors.