Immediate Rehabilitation of Critical-Size Gunshot- and Mine Blast-Related Maxillary Defects Using Cortically Anchored Single-Piece Implants: Two Case Reports

Background and Clinical Significance: Implant rehabilitation of patients with acquired maxillofacial defects remains challenging, particularly following high-energy war-related trauma. Gunshot and mine blast injuries frequently result in extensive hard and soft tissue loss, often requiring complex reconstructive procedures. Although cortically anchored implants have been successfully used in patients with severe maxillary atrophy and selected traumatic defects, evidence supporting their use for the immediate rehabilitation of critical-size war-related maxillary defects remains limited. Cortically anchored single-piece implants used in conjunction with an immediate loading protocol may provide an alternative rehabilitation strategy for selected patients who decline, or are unsuitable for, conventional implants and bone-grafting procedures. Case Presentation: Two patients with critical-size maxillary defects (approximately 3 cm) resulting from gunshot and mine blast injuries are presented. Treatment consisted of extraction of non-restorable teeth, placement of cortically anchored single-piece implants, including tubero-pterygoid implants, followed by immediate loading with fixed hybrid metal–acrylic hybrid prostheses. Clinical and radiological evaluation was performed using panoramic radiography and cone-beam computed tomography. Conclusion: Successful implant-supported prosthetic rehabilitation was achieved in both patients. Cortically anchored implants engaging the basal bone of the maxilla provided stable support for immediately loaded fixed prostheses despite substantial hard and soft tissue loss. Functional and aesthetic outcomes were satisfactory. Immediate prosthetic rehabilitation was successfully completed in both patients. A 12-month clinical and radiographic follow-up was available for one patient and demonstrated stable implant function without biological or prosthetic complications. Long-term follow-up of the second patient was not available because of active military service. Cortically anchored implant-supported hybrid prostheses may represent a viable treatment option for selected patients with critical-size maxillary defects resulting from gunshot or mine blast injuries, enabling rapid restoration of oral function and facial aesthetics while avoiding extensive bone-grafting procedures.