Abstract
The range of activities performed by children has been changing, while the types of childhood trauma also vary. Along this line, it is speculated that young patients suffering from oral trauma are gradually increasing. In the present study, we analyzed the records of child patients who visited the pediatric dental clinic of Nippon Dental University Niigata Hospital from 2008 to 2011 with a traumatic dental injury.1.The general age distribution of patients who had primary teeth, permanent teeth, and soft tissue injuries was 1-3, 7-11, and 1-4 years old, respectively.2.More than half of the patients were admitted on the day of injury.3.Most of the patients were injured in the afternoon.4.The main cause of trauma was falling down.5.The maxillary central incisors were the most frequently affected in both primary and permanent dentition.6.The frequency of re-injury was 2.3% in primary and 21.6% in permanent dentition.7.The most common type of trauma in primary and permanent dentition was dislocation and crown fracture, respectively.8.The maxillary and mandible lips were the most frequently affected soft tissues.9.Trauma in primary dentition was observed without treatment in most cases, while endodontic treatments and crown restoration showed increases for cases of trauma in permanent dentition.
