2006 Volume 44 Issue 3 Pages 439-443
The purpose of this study was to investigate the effects that traumatic decidous teeth have on the permanent successors, especially with respect to the time of eruption.
The subjects were 100 children with a total of 157 traumatized decidous central incisors observed from 1992 to 2000 until their permanent successors erupted. Their traumatized decidous central incisors were treated according to the degree of the traumatic injuries. We used medical records and radiographs for the investigation. The controls were the opposite site central incisors and the first molars at the time of eruption.
There was a larger of boys in 1.7: 1 than girls. The average age was 3 years 3 months, while there were numerous 2-4 year olds in the age distribution.7.5% had permanent successors at the time of eruption. We noted in particular, early eruption and delayed eruption of the permanent successors which were found to be injured in children 1 year old in particular. As to the traumatic injuries, we noted that permanent successors showed root fracture inclination and embedment at the time of eruption. Additionally, permanent successors at the time of eruption showed pulp exposure, and crown fracture.
In conclusion, we found that there were no limits to the extent of the traumatic injuries. We suggest that deciduous teeth with traumatic injuries should be observed up to the time when the permanent incisors erupt.
