The material is a matrix of collagen mineralized containing a homogeneous mixture of collagen cleansed of type I+III and an osseous biphasic substitute HA / TCP. The proportion of both constituents is 90 % of osseous substitute for 10 % of collagen en masse. The collagen is reduced in approximately 1 month and the osseous substitute leads to an osseous reshaping in 6 - 9 months approximately.