Zygoma Implants or Sinus Lift for the Atrophic Maxilla with a Dentate Mandible Which is the Better Option?

摘要

INTRODUCTION: Maxillary atrophy represents a challenge for surgeons and restorative providers. Ideally, prosthetic restoration should restore mastication, comfort, and phonation, allowing for an improved quality of life. Autogenous bone graft is considered the gold standard technique because of its osteogenic, osteoconductive, and osteoin-ductive properties. Historically, restoration of the severely atrophic maxilla involved obtaining bone graft from the iliac crest for onlay or interpositional techniques. Such surgical procedures required multiple surgical sites, prolonged hospital stays, and possible donor site morbidities. Potential complications encountered include sinusitis, graft exposure or resorption, infection, neurosensory deficits, and insufficient bone quantity or quality. In addition, failure and unpredictable outcome of such autogenous grafting techniques often reduced patient acceptance. To avoid the disadvantages of autogenous bone grafting, bone substitutes and biologics (bone morphogenetic proteins, membranes, platelet-rich plasma, platelet-rich fibrin) are commonly used. However, they remain inferior to clinical outcomes achieved by using autogenous bone grafts.