Early Bone Response to Dual Acid-Etched and Machined Dental Implants Placed in the Posterior Maxilla in Yemen: a Histomorphometry Human Study

Abstract

This study investigates the early peri-implant bone healing of dual acid-etched (DAE) versus machined (MA) implants in the posterior maxilla among Yemeni patients. A randomized clinical trial involving 50 patients assessed bone-to-implant contact (BIC), trabecular thickness, and bone volume/total volume (BV/TV) using histomorphometry analysis at 4, 8, and 12 weeks post-implantation. Results indicated that DAE implants exhibited significantly higher BIC (68.5% ± 4.2%) and trabecular thickness (125 μm ± 15 μm) compared to MA implants. These findings suggest that DAE implants enhance osseointegration in areas of low bone density, warranting further long-term research.