Background: Insufficient bone condition can pose a significant challenge in dental implant procedures. The success of implant therapy relies on having sufficient bone thickness at the implant site. Factors such as bone atrophy, periodontal disease, trauma, and intermaxillary relationships (vertical, horizontal, and sagittal) can lead to insufficient bone volume for placing implants. To address this issue, bone augmentation techniques are commonly used to restore function and improve aesthetics in areas with inadequate bone. Various techniques and materials are available for bone augmentation, including Guided Bone Regeneration (GBR), which is one of the known methods with varying success rates. Objective: provide information about the management of bone augmentation in dental implants using the GBR technique. Case report: involves a 21-year-old male patient who sought treatment at a clinic to resolve functional issues and prevent dental shifting following a tooth extraction. The patient desired permanent dentures for the left mandibular area. After undergoing several examinations, it was determined that dental implants on tooth 46, with a diameter of 4.1 mm and length of 10 mm, accompanied by a cemented-screw type porcelain-fused-to-metal (PFM) crown, would be appropriate. In this particular case, the GBR technique with allograft bone grafts was employed for bone augmentation. After approximately one year of observation, evidence of new bone formation was observed, indicating the success of the dental implant treatment. Conclusion: there are several effective techniques for correcting inadequate bone conditions before placing dental implants.