David Baranes, DMD1
Damian Dudek, DMD2,3
Agata Chwarscianek, MD4
Amos Yahav, DMD5
Gregori M. Kurtzman, DDS6
Abstract:
Sinus floor elevation remains a fundamental regenerative procedure for implant placement in the posterior maxilla, particularly in cases of vertical bone deficiency or a steeply inclined sinus floor. Although the lateral window approach has traditionally been favored for its visualization and membrane control, it is more invasive and often associated with greater morbidity. Minimally invasive crestal sinus elevation techniques have gained prominence as an alternative though challenges remain regarding membrane safety and predictability. Bond Apatite (Augma), a hardening biphasic calcium sulfate–hydroxyapatite cement, offers physical and biologic characteristics well suited to the crestal approach, especially when paired with the Baranes-Yahav technique. This case series evaluates histologic outcomes of crestal sinus augmentation performed with the Augma Lift technique using Bond Apatite. Eleven specimens obtained at 4, 6, and 8 months postaugmentation were analyzed with standard hematoxylin and eosin staining and immunohistochemistry. All samples showed progressive new bone formation with controlled resorption of the calcium sulfate component and long-term integration of hydroxyapatite crystals. By 8 months, the regenerated bone averaged 82.4% and exhibited excellent vascularity and structural maturity, allowing implant placement with primary stability exceeding 25 Ncm. No inflammatory reactions or adverse tissue responses were observed. The findings demonstrate that Bond Apatite supports predictable osteoconduction and stable space maintenance during minimally invasive crestal sinus augmentation. When combined with the Baranes-Yahav technique, the material offers a safe, efficient, and clinically effective alternative to traditional lateral window procedures, consistent with current trends toward less invasive regenerative implant dentistry.
