Journal of implantology and applied sciencesISSN:2765-7833(Print) 2765-7841(Online)대한구강악안면임플란트학회

Af ter tooth extraction, the alveolar ridge undergoes a series of structural changes, including the inevitable vertical and horizontal loss of alveolar bone. In this case, growth modif ication was performed on an 11-year-old patient with skeletal Class II malocclusion with multiple congenitally missing teeth and early loss of a deciduous tooth without succedaneous replacement using an intraoral orthopedic appliance. The space f rom the lost deciduous teeth was effectively maintained. At the age of 14 years, an orthodontic mini-implant with a diameter and length of 1.6 and 7 mm, respectively, was inserted into the alveolar bone to prevent additional alveolar bone resorption and maintain alveolar bone height until growth completion. At the age of 18 years, the second phase of orthodontic treatment was started to properly set the time of dental implant placement and the completion of orthodontic treatment. At the age of 19 years, the alveolar bone height was properly maintained until dental implant placement. The dental implant was successf ully placed without additional vertical bone augmentation. Therefore, we successf ully preserved the alveolar bone by inserting an orthodontic mini-implant into the site of early deciduous tooth loss without succedaneous replacement in an adolescent patient.