Electrospun fibrous membranes of poly (lactic-co-glycolic acid) with β-tricalcium phosphate for guided bone regeneration application

Abstract

Guided bone regeneration (GBR) have been proved great success for the treatment of bone defects in oral implantology. Bone defects are reconstructed by the use of a barrier membrane which prevents the invasion of soft tissue and create a space for guiding new bone growth into the bone defect. To develop GBR membranes with higher bioactivity, poly (lactic-co-glycolic acid) (PLGA) fibrous membranes containing β-tricalcium phosphate (β-TCP) were fabricated via electrospinning. The presence of 5 wt% and 10 wt% of β-TCP in the fibers improved mechanical properties. In vitro biocompatibility results have shown that all membranes are non-cytotoxic and the presence of β-TCP increased cell adhesion and proliferation. Furthermore, cell viability results demonstrated that the presence of 5 wt% β-TCP is advantageous for osteoblast proliferation. Therefore, the results suggest that PLGA with 5 wt% β-TCP fibrous membranes meet the requirement of morphological, physical, mechanical and bioactive properties for an effective GBR membrane.