Ridge Augmentation Using Allograft Particles Hydrated With or Without Recombinant Human Platelet-Derived Growth Factor

This study compares two techniques for rebuilding a thin or narrow jawbone (alveolar ridge) to prepare it for a dental implant: one uses donor bone particles alone (allograft), and the other uses donor bone particles combined with a special growth factor called rhPDGF-BB that may speed up bone regeneration. This is for patients who don't have enough bone width to place an implant without a bone graft first. You may be eligible if: - You are 18 years or older - You are a patient of the UAB Dental School - You speak English and can understand the consent form - You need dental implants to replace missing teeth in at least one area of the mouth - A bone scan (CBCT) shows you have 5 mm or less of jawbone width at the implant site You may NOT be eligible if: - You smoke more than 10 cigarettes per day - You have a systemic health condition that prevents oral surgery or impairs wound healing - You have significant vertical bone loss at the implant site - You have a history of poor dental hygiene, alcohol abuse, or drug abuse Talk to your doctor to see if this trial is right for you.