Late complications of luxation injuries to teeth

Publisher Website
Google Scholar
Abstract
The 172 periodontally injured teeth of 76 patients were examined clinically and radiographically 6–32 months (mean 22 months) following injury. Multiple linear regression analysis, in which all the variables examined were forced into the model, was used to study the effect of three variables (stage of root formation, type of luxation, and duration of immobilization) in conjunction with one or two variables having the highest explanatory effect on 4 radiographically diagnosed late complications: external replacement resorption, pulp obliteration, loss of marginal alveolar bone and periapical inflammatory changes. External root resorption was found in 19% of cases and was only statistically related to the type of first aid treatment (p< 0.001), although the duration of immobilization was a more decisive factor for ankylosis than the other two variables. Partial or total obliteration of the pulp was recorded in 24% of the teeth examined and was statistically related to the age of the patient (p< 0.001) and the stage of root formation (p<0.05). Loss of marginal alveolar bone was dependent on the age of the patient (p< 0.001) and the duration of immobilization (p<0.05). Dislocation upon injury was the most decisive single factor affecting the radiographic periapical inflammatory changes (p<0.001).