Individual variation in amount and direction of growth of the cranial base, the mandible, and the maxilla can be large, and the co-ordination between these components is not always perfect. Therefore, some mechanism is needed to direct tooth eruption in order for a normal occlusion between the maxillary and mandibular dentition to be achieved and maintained.
The mechanism is termed the Dento Alveolar Compensatory Mechanism (DACM) and can be defined as a system that attempts to maintain normal occlusion when the skeletal growth of the maxilla and mandible is deviating. In this manner the maxillary and mandibular arches can be considered as a flexible ribbon, adapting to the varying jaw relationship and thereby trying to maintain a normal relationship between the arches.
(Rev Esp Ortod. 2015;45(4):211-216)