The optimal time for placement of implants is after growth of the maxilla, mandible and alveolus is complete. If implants are placed before growth is complete, the surrounding alveolar bone may continue to develop vertically and adjacent teeth may continue to erupt. Thus a discrepancy between the gingival margins of the implant and the natural teeth is created and the implant appears to become submerged. This creates a functional
as well as an esthetic problem. Methods of evaluating growth include superimposition of sequential cephalometric radiographs and growth charts. For males, completion of facial growth, which often corresponds to general growth, may not occur until the age of 21 years; in young women, growth may be completed by age 15. If growth is complete, dental implants can be placed as soon as the edentulous space has been created and the tissues have stabilized following orthodontic treatment.