[Factors predictive of the probable occurrence of traumatic lesions at the level of the incisors. A case-control study of Senegalese adolescents].

INTRODUCTION

Knowledge of the factors influencing traumatic injuries of the anterior teeth is useful to prevent their occurrence. The aim of this case control study is to test the relationship between intrinsic and extrinsic factors and dental traumatism in adolescents.

MATERIALS AND

METHODS

Cases are 32 adolescent consulting for dental traumatism at the University Dental Clinic Dakar (Senegal). Control subjects (49) are derived from the same population but were free from any dental traumatism. Logistic regression analyses are performed to identify factors that best predict the occurrence of incisor traumatism.

RESULTS

Stepwise logistic regression analysis identifies the angle between upper incisor axis to palatal plane (OR = 1.10; 95% CI; 1.01-1.19) and variables related to lip position as best predictors of incisors traumatism. Insufficient lip coverage in rest position increases eight times the odds of having incisors injury.

CONCLUSION

Early orthodontic management of the identified factors may help preventing the occurrence of traumatic incisor injuries.