Biological parking concept: proposal of a modular approach for the prevention of upper impacted canine in paediatric patients.

AIM: The aim of this paper is to propose a new concept of "biological parking" for the prevention of upper impacted canine in the early mixed dentition, illustrating the management of palatal expansion, followed by serial extraction of first deciduous molar and than deciduous canine.

RESULTS

This approach, applied in the early mixed dentition, can obtain an important improving of the infrabony path of the canines, either in case of vestibular or palatal risk of impaction, because it promotes a guided acceleration of the eruption of the first premolar avoiding o reducing the risk of its mesial eruption and frees up space for the eruption of the canine, improving its inclination, better if associated with an open root apex. If pretreatment variables regarding the possible success of treatment on the eruption of canine are more severe, this approach can make easier the next surgical-orthodontic threrapy.

CONCLUSIONS

Early maxillary expansion followed by the extraction first of the first milk molar and then of the deciduous canine, after the initial eruption of first premolars, in this exact sequence, can be effective in treating patients in early mixed dentition with risk of impacted canines.