NUMERO: #20240212

Título: UNUSUAL GINGIVAL REACTION RELATED TO FOREIGN BODY HYDROXYAPATITE: A CASE REPORT

Nome do Apresentador: Josefina Martínez-Ramírez

Categoria do Trabalho: Apresentação oral de casos clínicos (AOC)

Área Temática: Estomatologia

Resumo: A 56-year-old woman was referred for evaluation and management of two asymptomatic vestibular gingival lesions in the areas of both upper lateral incisors. These two teeth were missed and the areas were rehabilitated with dental implants and crowns. The patient reported that was previously treated in another service with systematic antibiotics and antiseptic mouthwash without resolution. She denied tobacco and alcohol use and her medical history includes a stroke medicated with clopidogrel. Clinical examination revealed two nodular lesions with erythematous and whitish areas on the marginal gingiva, with approximately 1 cm each one. Cone beam computed tomography revealed extraosseous hyperdense particles along the bilateral buccal cortical bone of the dental implants. Microscopic examination showed intense chronic inflammation associated with numerous birefringent structures with rectangular and triangular shapes immediately subjacent to the epithelium. Energy-dispersive X-ray analysis revealed calcium and phosphate as the main elements of the foreign body, allowing comparison with pure hydroxyapatite to confirm the similarity in composition. The case is especially unique due to the identification of an enlarged gingival reaction to hydroxyapatite.

Autor 1:  Josefina Martínez-Ramírez

E-mail 1:  [email protected]

Autor 2:   Sibele Nascimento de Aquino

E-mail 2:  [email protected]

Autor 3 :  Hélen Kaline Farias Bezerra

E-mail 3:  [email protected]

Autor 4:  Mario Fernando de Góes

E-mail 4:  [email protected]

Autor 5:  Alan Roger Santos-Silva

E-mail 5:  [email protected]

Autor 6:  Pablo Agustin Vargas

E-mail 6:  [email protected]

Autor 7:  Márcio Ajudarte Lopes

E-mail 7:  [email protected]