aiding the cause or policy or interests of. 1  blessing, 2  help, 3  protagonism, 4  assist, 5  advocacy, 6  approving, 7  adhesion, 8  endorsement, 9  attachment, 10  reassurance, 11  approval, 12  adherence, 13  aid, 14  sponsorship, 15  assistance, 16  indorsement. 17  disapproval.
components, namely the mineral crystals and the organic matrix, can be discerned. The organic matrix of bone consists primarily of a fibrous protein, collagen, and lesser amounts of other noncollagenous proteins (discussed later). In tooth, collagen is also the major organic constituent of dentin and cementum, but there is no collagen in enamel. Collagen is the same protein that gives flexibility to ligaments and ten-
Mimicking the nanostructure of bone and understanding the interactions between the nanoscale inorganic and organic components of the extracellular bone matrix are crucial for the design of biomaterials with structural properties and a functionality similar to the natural bone tissue.