The present invention is sandwiched between two layers of pre-stretched elastic collagen material, the collagen material comprising 50-100% (w / w) collagen and 0-50% (w / w) elastin. A resorbable cross-linked shape-stabilizing membrane comprising a composite layer of collagen material and inorganic ceramic particles comprising 1.5 to 3.5 parts by weight of inorganic ceramic to collagen material and 1 part by weight of collagen material; -The resorbable cross-linked shape stabilizer used as an implant to assist bone formation, bone regeneration, bone repair, and / or bone replacement in a human or animal free dental bone defect site Membrane, a method for producing a resorbable cross-linked shape-stabilizing membrane comprising the steps of: (a) producing a composite layer of inorganic ceramic particles and collagen material (in some cases the composite layer is cross-linked) (B) assembling and adhering a composite layer of collagen material and inorganic ceramic particles between two layers of tensioned collagen material leading to stretching the collagen material into the linear region of its stress-strain curve; Providing a composite layer of collagen material and inorganic ceramic particles sandwiched between two layers of pre-stretched elastic collagen material, and (c) between the two layers of pre-stretched elastic collagen material The present invention relates to a method including a step of crosslinking a sandwiched composite layer of a collagen material and inorganic ceramic particles and then performing a dehydration treatment.本発明は、‐そのコラーゲン材料が50~100%(w/w)のコラーゲンと0~50%(w/w)のエラスチンを含む、予備延伸した弾性コラーゲン材料の二つの層の間に挟まれた、コラーゲン材料と1重量部のコラーゲン材料に対して1.5~3.5重量部の無機セラミックを含むコラーゲン材料と無機セラミック粒子の複合層を含む再吸収可能な架橋された形状安定膜、‐ヒト又は動物の、何も含まない歯骨欠損部位における、骨形成、骨再生、骨修復、及び/又は骨置換を支援するためのインプラントとして使用される上記再吸収可能な架橋された形状安定膜、‐上記再吸収可能な架橋された形状安定膜を製造する方法であって、(a)無機セラミック粒子とコラーゲン材料の複合層(場合によってはその複合層は架橋される)を製造する工程、(b)コラーゲン材料をその応力・ひずみ曲線の線形領域への引き伸ばしに導く張力がけに付したコラーゲン材料の二つの層の間に、コラーゲン材料及び無機セラミック粒子の複合層を組み立て、及び接着し、それ