The Follow-up Study on the Primary Incisors with Root Fractures as a Result of Trauma

Abstract

In an attempt to evaluate the prognosis of traumatized primary teeth with root fracture, a clinical and radiographical follow-up study was made in 9 child patients with a total of 11 traumatized primary incisors with root fracture, until their permanent successors erupted.
The subjects included children aged 1 to 5 at the first visits, and 7 children (9 teeth) who had their first visit within 2 days of the trauma.
At the initial examination,10 teeth exhibited markedly increased mobility with displacemet and were treated by fixation and tooth cleaning for 43 to 88 days. One tooth exhibited slight mobility with no displacement and was observed only.
Consequences of these primary teeth comprised in this study, all of the teeth survived normally. The coronal and apical fragments were separated by a narrow radiolucent line, and there was evidence of peripheral rounding of the fracture edges and normal root resorption. Ten teeth (91 %) developed pulp canal obliteration after 5 month. Two teeth (18%) showed pulp necrosis and periodontitis within 3 months and 49 months. Eight teeth (73%) showed discoloration. For the permanent successors, a small white spot was observed in one tooth.