External cervical resorption of a primary canine

Area of Science:

• Pediatric Dentistry
• Oral Pathology
• Dental Traumatology

Background:

• External cervical resorption (ECR) is a pathological process characterized by loss of tooth structure starting at the cervical region.
• While ECR is well-documented in permanent dentition, its occurrence in primary teeth is exceptionally rare.
• This case highlights a unique presentation of ECR in a young child's primary maxillary canine.

Observation:

• A 3-year-old boy presented with a mobile primary maxillary canine exhibiting an abnormally large crown.
• Clinical signs included a potential crown-root fracture and periodontal probing depths of 5 mm.
• Radiographic findings revealed cementoenamel junction constriction and alveolar rarefaction.

Findings:

• Histopathological investigation of the extracted primary canine confirmed a diagnosis of external cervical resorption.
• The resorption process significantly affected the cervical region of the tooth.
• The contralateral primary canine was also removed, suggesting a possible bilateral or progressive condition.

Implications:

• This case underscores the importance of considering rare diagnoses like ECR even in primary dentition.
• Early identification and management are crucial to prevent complications and preserve the dental arch.
• Further research is warranted to understand the etiology and prevalence of ECR in primary teeth.