fig5
![Collagen membrane for reconstruction of soft tissue defects after surgery of oral cancer and precancer: a brief review](https://image.oaes.cc/c3cb17a0-161a-42b9-b2f6-e633e86f9b53/1348.fig.5.png)
Figure 5. (a) Collagen membrane secured on buccal mucosa in a case of oral submucous fibrosis following excision of buccal fibrous bands; (b) photograph of the 7th postoperative day showing partial healing of buccal mucosa and partial sloughing of collagen