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Multiple idiopathic external root resorption is an unusual condition that may present in a cervical or an apical form. In this paper, we review the published literature relating to root resorption and multiple idiopathic external apical root resorption (MIEARR). The article considers the types, classification and aetiology of root resorption and discusses the restorative options and management. An example of a patient suffering with multiple idiopathic apical external apical root resorption affecting UR2, UR1, UL1, UL2 and hypodontia affecting the maxillary canines is described.
Clinical Relevance: This paper offers clinical advice to practitioners to understand the classification of root resorption and appropriate and timely referral to be made to secondary care for optimum restorative treatment when multiple teeth are involved with no known cause established.
Article
Root resorption in deciduous teeth is a normal physiological response, resulting in exfoliation of the deciduous teeth with replacement by the permanent dentition. In contrast, the process of root resorption in the permanent dentition has a pathological basis. The resorption of permanent teeth was first described by Bates in 1856, who considered the cause to be trauma to the periodontal membrane.1 Root resorption is classified as external and internal, the former being reported more often.2 Root resorption of permanent teeth has been attributed to a wide variety of causes, such as trauma, inflammation, tooth re-implantation, tumours, cysts, occlusal stress, impacted teeth,3 orthodontic movement,4 periodontitis and dietary habits.5,6 Resorption of the roots can also be related to endocrine disturbances and systemic conditions, such as hyperparathyroidism, hypoparathyroidism, hypophosphataemia, hyperphosphataemia, Gaucher's disease, Paget's disease of bone, Goltz syndrome, Papillon-Lefèvre syndrome and Turner syndrome.7 However, Henry and Weinmann highlighted that minimal apical resorption may be present in all permanent teeth.8 It is not uncommon that resorption of unknown aetiology is encountered.9
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