インプラント即時埋入、骨拡大、動的ナビゲーションを用いた低侵襲アプローチ：2症例報告

Implant placement in the posterior maxilla is challenging due to low bone density and sinus pneumatization, which limits bone height. Indirect sinus elevation with osseodensification (OD) can compact trabecular bone while preserving sinus integrity and shortening overall treatment time. Dynamic navigation (DN) enhances real-time accuracy and predictability, and palatal positioning may help preserve the three-dimensional soft-tissue architecture.Two patients underwent immediate implant placement in the posterior palatal bone following extraction combined with indirect sinus floor elevation using OD burs and DN. Immediate provisionalization was performed in both cases to support soft tissue architecture, yielding predictability with reduced morbidity and overall treatment time.The combination of palatal implant placement, indirect sinus elevation by OD, and DN followed by immediate provisionalization offers a minimally invasive, predictable, and time-efficient strategy for rehabilitating challenging posterior maxillary sites. Although promising, validation through larger studies with longer follow-up is needed.