A thorough understanding of the processes of healing, repair, and remodeling of bone is critical for the establishment and maintenance of osseointegration of dental implants. In this regard, much attention has been paid to the anabolic aspects of bone remodeling, including the cell biology of the osteoblast and the various cytokines and growth factors which regulate these processes. In contrast, there is little information on the bone-resorptive activity that occurs around implants during osseointegration, and of the role of osteoclasts, macrophages, and stromal cells in those catabolic processes associated with bone remodeling. This paper reviews osteoclast cell biology, the interaction of osteoclasts and biomaterials, and the information available on osteoclasts and dental implants, and poses some questions for future research.
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