Abstract
Abstract Background The ultimate objective of implant dentistry is to position the implant in a three-dimensional, prosthetic-driven location. This case highlights a guided approach for harvesting and positioning an autogenous bone block to restore a horizontal bone defect in the anterior maxilla. Methods This case report describes a 55-year-old patient with horizontal bone deficiency in the anterior maxilla following teeth loss. Using specialized software, a surgical guide was designed to facilitate the harvesting of an autogenous bone block from the subnasal region in the same location where implants were planned to be placed. The graft was then repositioned and fixed with titanium screws, and the gaps were grafted with xenogenic bone particles and covered with an absorbable collagen membrane. After 6 months, the implants were placed, followed by prosthetic restoration. Results A one-stage implant placement was performed after an uneventful healing period. The bone augmentation resulted in a ridge width of 8 mm for a net gain of 5 mm. After 4 months, the implants were loaded with a screw-retained zirconia bridge. Conclusion Guided transpositional bone blocks offer a predictable approach to treating horizontal bone defects in the esthetic zone. Utilizing digital planning and surgical guides enhances precision, making the result more predictable.