External cervical resorption in maxillary canines
DOI:
https://doi.org/10.61872/sdj-2025-01-06PMID:
40103412Keywords:
external cervical resoprtion, canine tooth, orthodontics, root canal, cuspidAbstract
External cervical resorptions (ECRs) are challenging dental hard tissue lesions. They are frequently missed due to their asymptomatic progression. Three-dimensional imaging and increased awareness within the dental community have likely contributed to the observed rise in ECR prevalence over the recent years. While the exact etiology of ECR remains unclear, numerous risk factors have been identified, encompassing both physical and chemical factors. However, idiopathic cases have also been documented. Literature highlights the propensity of ECRs to occur in anterior teeth and molars, often linked to prior orthodontic treatments and picked up by bitewing or periapical radiographs. However, in cases involving canines, early diagnosis is frequently missed, and lesions are typically discovered at a later stage only, when clinical signs and symptoms manifest. We present several cases in this narrative review, including a case report on a 59-year-old patient presenting with an ECR in the maxillary left canine (tooth 23), decades after orthodontic treatment. The lesion was successfully managed using a combination of endodontic and surgical treatment. Despite the advanced stage of resorption, the tooth was preserved. Given ECR's slow progression and frequent late clinical detection, additional radiographic monitoring of front and canine teeth can be recommended for patients with predisposing factors, such as a history of orthodontic treatment or trauma. This proactive approach can facilitate earlier diagnosis and timely intervention, improving outcomes for affected teeth.
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