Abstract

The Challenge of the Alveolar Process

by Binner Becktor Karin

The link between the predominately genetically determined growth of the cranial base, the maxilla and the mandible and the dentoalveolar arches is also called the dentoalveolar compensatory mechanism, the process or mechanism by which the alveolar arches are controlled so as to secure occlusion of the teeth and adaptation to the basal parts of the arches. 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 factors which are responsible for dentoalveolar mechanism are not fully understood. However, it has been described that growth of the dentoalveolar bone is taking place in connection with tooth eruption, and is accordingly very dependent on a normal eruption process. Significant changes in the direction and magnitude of tooth eruption occur especially depending on the vertical, but also the sagittal and transverse development of the face. Since the DACM serves to maintain optimal interdigitation of the dentition its efficiency is clearly related to the development of malocclusion in both the sagittal, vertical and transverse plane. In the lecture the advances and disadvantages of the DACM will be discussed.

Learning Objectives

After this lecture, you will be able to recognize the relationship between craniofacial growth, development of the alveolar process and tooth eruption.
After this lecture, you will be able to understand alternative to sutural transversal expansion.
After this lecture, you will be able to understand that knowledge of dentoalveolar compensation can simplify orthodontic treatments.