That does NOT look like scc.
It just looks like an ulcer. I'm a student who did Oral Pathology, so I can tell you that it does not look like SCC (cancer).
However, if it is persistent, then you should definitely check it out and see someone in the Oral Medicine department. I'm not saying it is not SCC, as SCC can start out like that too...but it does not look like SCC. It looks more like a traumatic ulcer.