Fabrication of collagen membranes with different intrafibrillar mineralization degree as a potential use for GBR.

The process of biomineralization in dentin and bone tissue repair has been extensively studied. In vitro, biomineralization can be stimulated via a polymer-induced liquid precursor (PILP) process. Guided bone regeneration using a barrier membrane and bone substitute materials is widely used in implantology in cases where there is insufficient bone volume. Herein, we applied a homologous PILP processes to fabricate collagen films with a varying degree of mineralization and tested their performance. The results showed that the prepared biomineralized membranes are biocompatible, have a high stress strength and can promote MC3T3-e1 cell proliferation. This indicated that the membranes can be potentially applied in guided bone regeneration, with membranes containing a higher degree of mineralization achieving the best results.