Tissue ScaffoldsBiodegradable PlasticsTissue EngineeringBiocompatible MaterialsPorosityPolyurethanesPolyestersMaterials TestingNanofibersPolyglycolic AcidAbsorbable ImplantsPolymersDecanoatesMicroscopy, Electron, ScanningBone RegenerationGuided Tissue RegenerationBiomimetic MaterialsNanostructuresSilkDurapatiteBone SubstitutesChitosanImplants, ExperimentalHydrogelsCalcium Phosphates