Application and exploration of hydrogels in the repair of periodontitis-induced bone defects

Severe periodontitis leads to periodontal tissue defects，alveolar bone resorption，pulp necrosis，and tooth loosening，so there is an urgent need to find suitable periodontal bone repair materials for treatment. Currently，common methods used to repair bone defects，such as autologous bone and allogeneic bone transplantation，platelet products，and （guided tissue regeneration，GTR） strategies，have many flaws. Hydrogels，with their unique advantages，have stood out and have been a hot topic in research in recent years. This article summarizes the advantages and disadvantages of hydrogels，lists the properties and research progress of several traditional hydrogels and novel hydrogels at present，aiming to provide new ideas for the application of hydrogels in the field of repair and treatment of periodontitis-induced bone defects.