In this article, the authors describe their use of a heterologous equine collagen bone substitute for a maxillary sinus lift, and they assess the efficacy of this biomaterial when utilized with autologous bone.
Maxillary sinus lift is a common surgical procedure in dentistry practices. A wide array of biomaterials and bone substitutes are available for this purpose. Their efficacy varies in terms of the amount of de novo bone production observed at a given point in time. Nonetheless, histomorphometric analyses are not usually performed during routine clinical practice. The authors performed a sinus lift procedure in a 66-year-old male with the aid of an equine collagen graft. Eight months later, at the time of implant placement, two biopsies were collected for the histomorphometric analysis. The histomorphometric analysis revealed spongy bone tissue undergoing remodeling, and 42% of the tissue was newly formed bone. There was no evidence of an inflammatory reaction.