RESUMO
Developmental disturbances of permanent teeth can result from trauma to primary teeth because of the proximity of the root of the primary teeth to their permanent successors. We describe the case of a 14-month-old boy who was referred to the baby clinic of the School of Dentistry, Universidad Estadual Paulista, Araçatuba, Brazil, after sustaining a severe trauma that led to intrusion of the right primary central incisor. Radiographic examination 4 years after the trauma showed a developing morphological change in the germ of the permanent successor. On eruption of the permanent central incisor, a crown malformation along with enamel hypoplasia was observed. We conclude that radiographic follow-up is indicated after trauma to monitor possible sequelae in the permanent successors even before their eruption
Assuntos
Hipoplasia do Esmalte Dentário/etiologia , Incisivo/lesões , Coroa do Dente/anormalidades , Germe de Dente/lesões , Dente Decíduo/lesões , Humanos , Lactente , Masculino , Maxila , Avulsão Dentária/complicaçõesRESUMO
The aim of this study was to determine the prevalence of sequelae in the permanent anterior teeth following trauma in their predecessors, and also to verify the existence of association between the sequelae in the permanent teeth and the type of injury in their predecessors according to the age group at the time of injury. This study was performed based on data from the records of 169 boys and 138 girls who received assistance at the dental clinic of the State University of Rio de Janeiro from March 1996 to December 2004. The sample was collected from 753 traumatized deciduous teeth of children aged 0-10 years. The number of boys and girls with dental trauma corresponded to 55.0% and 45.0%, respectively. The more affected age period was between 1 and 4 years (75.3%). The most common type of traumatic injury was the intrusion (29.3%), followed by avulsion (14.1%). Concerning permanent dentition, the most common developmental disturbances were discoloration of enamel and/or enamel hypoplasia (46.08%) and eruption disturbances (17.97%) due to the traumatic injury in their predecessors. It was not possible to find an association between the type of injury in primary teeth and sequelae in their successors in the studied age groups (P
Assuntos
Hipoplasia do Esmalte Dentário/etiologia , Descoloração de Dente/etiologia , Germe de Dente/lesões , Traumatismos Dentários/complicações , Dente Decíduo/lesões , Distribuição por Idade , Distribuição de Qui-Quadrado , Criança , Esmalte Dentário/patologia , Hipoplasia do Esmalte Dentário/patologia , Dentição Permanente , Feminino , Seguimentos , Humanos , Masculino , Estudos Retrospectivos , Descoloração de Dente/patologia , Erupção Dentária , Traumatismos Dentários/patologia , Dente não Erupcionado/patologiaRESUMO
La dilaceración coronaria es una malformación que afecta a los incisivos, prevalentemente a los centrales permanentes, resultado de un traumatismo en los incisivos primarios que alteran al germen en desarrollo. La eliminación de la caries cuando ésta se gakka oresebte y su tratamiento con resinas de fotocurado nos han dado un resultado estético satisfactorio (AU)
Assuntos
Humanos , Masculino , Criança , Traumatismos Dentários/etiologia , Traumatismos Dentários/diagnóstico , Traumatismos Dentários/terapia , Coroa do Dente/lesões , Dente Decíduo/lesões , Germe de Dente/lesões , Traumatismos Dentários/complicações , Incisivo/lesões , Cimentos de Ionômeros de Vidro/uso terapêutico , Resinas Compostas/química , Forramento da Cavidade Dentária/instrumentação , Restauração Dentária Permanente/métodos , Estética DentáriaRESUMO
Dentro de los traumatismos que afectan a los dientes temporarios, la intrusión constituye uno de los más severos, ya que si la misma es moderada o severa puede producir daño en el germen del diente permanente. Se deben conocer bien las pautas de tratamiento para evitar secuelas mayores en la dentición permanente. El presente artículo tiene como propósito destacar las características clínicas y radiográficas de la intrusión y establecer guías de tratamiento de acuerdo al grado de intrusión, destacando las secuelas postraumáticas no sólo de los dientes temporarios sino también de los permanentes (AU)
Assuntos
Humanos , Masculino , Pré-Escolar , Feminino , Traumatismos Dentários/diagnóstico , Traumatismos Dentários/terapia , Dente Decíduo/lesões , Prognóstico , Traumatismos Dentários/classificação , Dente Decíduo/diagnóstico por imagem , Acidentes por Quedas/estatística & dados numéricos , Avulsão Dentária/diagnóstico , Avulsão Dentária/terapia , Avulsão Dentária/etiologia , Extração Dentária/métodos , Germe de Dente/lesões , Reabsorção da Raiz/etiologia , Doenças da Polpa Dentária/etiologia , Radiografia PanorâmicaRESUMO
Dental transplants are of great interest in modern dentistry. Research has been directed toward the study of different techniques and observations of the results. Scientific basis is also to be observed and the aim of this paper is to associate technical with scientific data. Dental germs in different stages of development were carefully removed from their alveolar cavities together with the dental sac. Trauma was observed in some areas resulting from the movements of extraction or of the removal of the dental sac by dissection. It should be noticed that by the trauma produced by removal of the dental sac is very uncommon, since the operation is performed at a mesoscopic level. The material showed that the periodontal collagen net is complex in form and the meshes are wider in the surface. Smaller meshes could be seen closer to the cementum surface. Measures could be taken in order to have a basis of the distribution of collagen material around the dental root in different levels. The results showed that extraction should be performed in a most conservative manner and the movements for extraction should be applied to the crown of the dental germ. The maintenance of the periodontal integrity is very important in order to preserve the vascular barrier created by the dental cementum