A dental membrane set comprising: a dental membrane (110, 210, 310) preventing a gum epithelium from first entering a damaged portion and also guiding bone regeneration, by adapting a bone defect portion where a bone defect occurs; and a membrane fixing member fixing the dental membrane (110, 210, 310) to the bone defect portion, characterised in that the dental membrane (110, 210, 310) comprises: a main plate portion (120, 220); and a large area end bending portion (130, 230) forming an end area in one side of the main plate portion (120, 220), manufactured as one body with the main plate portion (120, 220), having a larger cross-sectional area than the main plate portion (120, 220), and being bendable to one side with respect to the main plate portion (120, 220), wherein the membrane fixing member comprises: a bone screw having one side fixed to the bone defect portion; and a bone tack coupled to the bone screw with the dental membrane (110, 210, 310) therebetween to fix the dental membrane (110, 210, 310), wherein the bone screw comprises: a screw portion fixed to the bone defect portion by a screw method; and a cuff formed coaxially with the screw portion, arranged around the screw portion, and forming a section having no screw thread. a dental membrane (110, 210, 310) preventing a gum epithelium from first entering a damaged portion and also guiding bone regeneration, by adapting a bone defect portion where a bone defect occurs; and a membrane fixing member fixing the dental membrane (110, 210, 310) to the bone defect portion, characterised in that the dental membrane (110, 210, 310) comprises: a main plate portion (120, 220); and a large area end bending portion (130, 230) forming an end area in one side of the main plate portion (120, 220), manufactured as one body with the main plate portion (120, 220), having a larger cross-sectional area than the main plate portion (120, 220), and being bendable to one side with respect to the main plate portion (120, 220), a main plate portion (120, 220); and a large area end bending portion (130, 230) forming an end area in one side of the main plate portion (120, 220), manufactured as one body with the main plate portion (120, 220), having a larger cross-sectional area than the main plate portion (120, 220), and being bendable to one side with respect to the main plate portion (120, 220), wherein the membrane fixing member comprises: a bone screw having one side fixed to the bone defect portion; and a bone tack coupled to the bone screw with the dental membrane (110, 210, 310) therebetween to fix the dental membrane (110, 210, 310), wherein the bone screw comprises: a screw portion fixed to the bone defect portion by a screw method; and a cuff formed coaxially with the screw portion, arranged around the screw portion, and forming a section having no screw thread. a bone screw having one side fixed to the bone defect portion; and a bone tack coupled to the bone screw with the dental membrane (110, 210, 310) therebetween to fix the dental membrane (110, 210, 310), wherein the bone screw comprises: a screw portion fixed to the bone defect portion by a screw method; and a cuff formed coaxially with the screw portion, arranged around the screw portion, and forming a section having no screw thread. a screw portion fixed to the bone defect portion by a screw method; and a cuff formed coaxially with the screw portion, arranged around the screw portion, and forming a section having no screw thread.