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Line diagrams illustrating direct sinus lift with simultaneous implant placement, (a) Atrophic posterior maxilla with residual bone height between sinus floor and alveolar crest inadequate for placement of dental implant, (b) Lateral wall of sinus in-fractured and membrane is elevated, (c) Grafted bone is densely packed in space created after lifting the membrane, (d) Augmented maxillary sinus with implant placed
