Distraction Osteogenesis is best described as which concept?

• A. A Process of Bone Growth Through Gradual Mechanical Distraction
• B. A Chemical Graft Used for Bone Regeneration
• C. A Micro-Osteoperforation Method
• D. A Type of Imaging Technique

Answer: (A)

Distraction osteogenesis is a process of bone growth through gradual mechanical distraction. After a controlled cut in the bone, devices slowly separate the two segments. The tension created in the gap stimulates the body to form new bone in the enlarging space, with the callus mineralizing and maturing into normal bone over time. This relies on the body’s own regenerative capacity rather than adding graft material, so it isn’t a chemical graft. It isn’t a micro-osteoperforation technique, which uses tiny perforations to stimulate remodeling, nor is it an imaging method used for diagnosis. In the mandible, this principle is applied to lengthen bone and correct deformities by guiding new bone growth along the desired direction as the device progresses.