Emerging studies report potential of umbilical cord mesenchymal stem cells combined with melatonin in treating premature ovarian failure, and bone marrow stem cell-derived exosomes promoting chondrocyte migration and growth for cartilage repair. Innovations include tannic acid-modified microspheres enhancing osteogenesis in bone defects and portable bioprinters transforming dental regenerative medicine. These advancements signify evolving possibilities in tissue repair, regeneration, and personalized therapeutic interventions.