The purpose of this study was to report the clinical and radiographical outcomes of using autogenous cortical bone plates combined with sticky allogenic bone graft for augmenting maxillary anterior atrophic combined horizontal and vertical ridge defects with simultaneous versus staged implant placement.

Sufficient alveolar ridge is a prerequisite for successful implant stability, atrophic ridges defects make the placement of regular implants challenging. A variety of materials and surgical techniques are available for bone augmentation procedures prior implant placement. The present study evaluated the effect of sticky allogenic bone graft for the horizontal and vertical ridge augmentation with simultaneous implant placement using autogenous cortical bone plates in maxillary anterior atrophic ridge defects.

Forty-two patients, with severe maxillary anterior horizontal and vertical atrophic ridge deficiencies were randomly assigned to two groups: staged approach group and simultaneous implant placement group. The two groups were grafted using bone plated buccally and palatally and the defect between plates was grafted by sticky allogenic bone graft. Radiographic examination was performed immediately before bone grafting procedure and at 6, 12 months postoperatively, to evaluate the change of bone width and height.

Inclusion Criteria:

• Good general health at the time of surgery
• At least 3 months of healing after tooth extraction
• Horizontally and vertical compromised alveolar ridges

Exclusion Criteria:

• Thick cortex in the labial/buccal with less cancellous bone inside;
• Obvious undercut on the labial/buccal side
• Uncontrolled periodontal conditions or other oral disorders;
• history of radiotherapy in the head and neck region

undecided

The present clinical trial was single-blinded one as the evaluator and the statistician were both blinded. While both the implantologist or the participant were not blinded as the interventions were dissimilar.