Distraction osteogenesis is a biologic process of new bone formation between the surfaces of bone segments that are gradually separated by incremental traction. Specifically, this process is initiated when distraction forces are applied to the callus tissues that connect the divided bone segments, and continues as long as these tissues are stretched. The traction generates tension that stimulates new bone formation parallel to the vector of distraction. Alveolar distraction osteogenesis (ADO) is a bone regeneration technique, introduced by Chin and Toth in 1996The ADO is a biological process used for regenerating and consolidating bone between two bone segments generated after the osteotomies.