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Abstract This study aimed at evaluating onlay block bone grafting versus particulate bone. Those two techniques were used for augmenting bony defects of the maxillary region of partially edentulous individuals using autogenous bone harvested from the mandible. Twelve patients with partial edentulous area in the anterior maxilla were treated in this study, the resorption of bone in this area didn’t allow for dental implants placement and required the need for enhancing the ridge height and width as a preparatory step. All patients were scheduled for ridge augmentation procedures using two different techniques. The grafts were harvested from the mandibular symphesis and ascending ramus and patients were divided into two groups the first group was treated with the bone in onlay block form while the second group was treated with the bone in the particulate form packed in a titanium cage. The bone blocks and the titanium meshes were rigidly fixed to the native bone by titanium microscrews. Radiographic assessment was carried on preoperatively, immediately and six months postoperatively. Assessment included measurements of linear changes in graft width and density of the grafted bone using reformatted cross-sectional CT images using the dentascan software. |