Influence of a Parafunctional Oral Habit on Root Fracture Development After Trauma to an Immature Tooth
Nenhuma Miniatura disponível
Data
2011-07-01
Autores
Vendrame dos Santos, Claudia Leticia
Matida Hamata Saito, Celia Tomiko [UNESP]
Luvizzuto, Eloa Rodrigues
Poi, Wilson Roberto [UNESP]
Barioni, Sônia Regina Panzarini [UNESP]
Sonoda, Celso Koogi [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Lippincott Williams & Wilkins
Resumo
Root fractures in immature teeth are rare because the resilience of the alveolar bone is more favorable to the occurrence of luxation. This article reports a case of traumatic injury in an immature permanent tooth that progressed to root fracture, having a parafunctional oral habit as the possible modifying factor of case evolution. A 12-year-old boy presented for treatment complaining of a defective restoration and mild pain on the maxillary right central incisor. The patient had a history of crown fracture in this tooth due to trauma 2 years before. The clinical examination showed healthy gingival tissues and no abnormal tooth mobility, whereas radiographic projections revealed healthy periradicular tissues, incomplete root formation, and no visible root fracture. As pulp necrosis was diagnosed, calcium hydroxide therapy was started for canal disinfection and subsequent obturation. However, after 4 weeks of treatment, a horizontal fracture line was observed radiographically in the root's middle third. The patient denied a new traumatic injury, but revealed the habit of chewing on a pencil. Refraining from the deleterious oral habit was strongly advised, and root canal filling with mineral trioxide aggregate was performed to treat the root fracture. After 4 years of follow-up, the tooth has normal function and no abnormal mobility. Images suggestive of remodeling at the apical end of the coronal segment and replacement resorption of the apical segment are seen radiographically. This case demonstrates the need of following cases of dental trauma and the possible influence of parafunctional oral habits as modifying factors of case progression.
Descrição
Palavras-chave
Root fracture, immature teeth, dental trauma
Como citar
Journal of Craniofacial Surgery. Philadelphia: Lippincott Williams & Wilkins, v. 22, n. 4, p. 1304-1306, 2011.