Ectopic junctional epithelium adhered to the buccal crown surface of an upper central incisor

Publication date: Available online 27 January 2020Source: Pediatric Dental JournalAuthor(s): Masako Toda Nakamura, Kyoko Oka, Hana Harada, Kayoko Ogata, Satoru Matsuo, Mihoko Rikitake, Shirabe Ohki, Tetsuya Kumagai, Yoko Kato, Atsuko Baba, Masao OzakiAbstractA girl attended our clinic with inflammation of the marginal gingiva. The surfaces of central incisors had severe enamel defects caused by trauma to the primary incisors. Swollen but non-ulcerated gingiva was present on the surface of the left central incisor. The gingival mass was surgically removed. Immunohistochemical analyses revealed that the resected mass included epithelial tissue expressing odontogenic ameloblast-associated protein (ODAM), which is a marker of junctional epithelium. It was likely ectopic junctional epithelium that had formed due to disorganization of the enamel organ during development caused by dental trauma to the primary incisors.

Source: Pediatric Dental Journal - January 28, 2020 Category: Dentistry Source Type: research