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  • Title: Prevalence of sequelae in the permanent anterior teeth after trauma in their predecessors: a longitudinal study of 8 years.
    Author: do Espírito Santo Jácomo DR, Campos V.
    Journal: Dent Traumatol; 2009 Jun; 25(3):300-4. PubMed ID: 19302202.
    Abstract:
    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 </= 1.00). The study concluded that discolorations of enamel and/or enamel hypoplasia (46.08%) were the most prevalent sequelae on the permanent dentition and that there was no significant statistical association between the occurrence of sequelae in the permanent teeth and the type of traumatic injury in their predecessors in the studied age groups.
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