The purpose of this case report was to analyze the outcome of alveolar ridge reconstruction procedures with composite alloplastic biomaterial (biphasic calcium phosphate composed of 30% hydroxyapatite and 70% ß-tricalcium phosphate) for the treatment of large alveolar ridge defects. The clinical and histologic findings demonstrated that this alloplastic biomaterial can be used to potentially regenerate large alveolar ridge defects. This composite biomaterial appears to be safe, biocompatible, and osteoconductive.