Dentofacial characteristics associated with trauma to maxillary incisors in the mixed dentition.

The study investigated the dento-facial features of a group of 69 children with trauma to the maxillary central incisors in the mixed dentition compared to a control group of 100 children, in order to identify possible "anatomical" factors predisposing to this type of dental trauma. The group with dental trauma showed excessive proclination of upper incisors to the palatal plane (p < 0.001) and increased lower facial height (p < 0.001) as major characteristics associated to dental trauma. The role of early orthodontic treatment in the attenuation of these factors predisposing to traumatic injuries to frontal teeth is stressed.