Corrigendum to "Scaffolds of bioactive glass (Bioglass®) combined with recombinant human bone morphogenetic protein -9 (rhBMP-9) for tooth extraction site preservation" [Heliyon 8 (1) (January 2022) e08796].

[This corrects the article DOI: 10.1016/j.heliyon.

Scaffolds of bioactive glass (Bioglass®) combined with recombinant human bone morphogenetic protein -9 (rhBMP-9) for tooth extraction site preservation.

Objective: The study aimed to investigate the osteogenic ability of bioactive glass (bioglass) combined with recombinant human bone morphogenetic protein-9 (rhBMP-9) on rat bone marrow mesenchymal stem cells (BMSCs) in vitro. The study also compares bone regeneration using rhBMP9 soaked with different carrier systems, including bioglass or collagen membranes (BioGide, BG) in a rat alveolar bone site preservation model in vivo.

Methods: Scanning electron microscopy was employed to analyze bioglass surface.

[The effect of hyaluronic acid external film on rats wound healing].

Objective: To observe the effect of an external film of hyaluronic acid (HA) on the rats wound healing.

Methods: Forty-eight SD rats were randomly separated into eight groups of 6 rats each. Bilateral dorsal cuts were performed on each rat, left wound was used as the experiment with HA external film and right wound was used as the control only with normal saline.