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Dens invaginatus is a developmental anomaly resulting in a deepening or invagination of the enamel organ into the dental papilla prior to calcification of the dental tissues. The prevalence has been reported to vary from 0.04% to 10%. Dens invaginatus commonly affects lateral incisors and very rarely affects the mesiodens. This article presents a rare case of type II dens invaginatus affecting an impacted mesiodens in a 13-year-old boy and describes its gross and histological features. The associated tooth was dilated and showed invaginated enamel and dentin extending beyond the cement enamel junction. In this case, the clinical diagnosis was confirmed by histological evaluation of the internal morphology using a hard tissue microtome to section the tooth.

A 14-year-old boy reported with a painless swelling over the right anterior mandible with missing right canine tooth. The lesion was diagnosed as 'central follicular adenomatoid odontogenic tumour' and excised surgically under general anaesthesia. The patient was on a year-long clinical and radiographical follow-up.

A nasal foreign body was discovered on routine radiographic examination of a 7-year-old girl following traumatic injury to permanent maxillary central incisors. The mother and the patient were unaware of the object's presence and the child had no nasal symptoms. The child was referred to an ear, nose and throat (ENT) surgeon to have the object assessed and removed. This was accomplished successfully without sequelae on an outpatient basis. This article highlights the role of a dentist in the proper detection and diagnosis, prompt referral for its management and reduction in complications related to foreign bodies.