Combined use of xenogenous bone blocks and guided bone regeneration for three-dimensional augmentation of anterior maxillary ridge: A case series

BACKGROUND: Bone augmentation ensures a favorable 3-dimensional position of implants. Onlay grafting is one of the techniques in ridge augmentation, which can be performed with the use of xenogenous blocks. METHODS: Three cases of the vertical and horizontal ridge are discussed, which were augmented using xenogenous blocks. The blocks were shaped in a favorable size and puzzled along the grafting area. All the gaps were filled with granular xenografts. The flaps were coronally advanced to obtain primary closure. RESULTS: An average of 4.2-mm gain in width and 4.2-mm gain in height of the ridge was observed at the implantation stage. CONCLUSION: The outcomes of these cases could pave the way for suggesting xenograft blocks for augmenting wide areas of the alveolar ridge on average of 4 mm in width and height in selected cases as an alternative to standard autogenous blocks. Long-lasting xenograft ensures implant and lip support in the esthetic zone.