There was an HBO documentary series named Autopsy[0] I watched back in the 90s and two crimes stick out. The series mainly followed the case file of a Forensic Pathologist named Dr. Michael Baden.
If I can remember them correctly, one case was a murder that appeared as a break-in and a bite marking found on a garbage bag was tied back to the victim. The other was an inmate that left bite marks on a guard and tied the crime back to the inmate with.
It’s so interesting to see this research now and wonder what would come of those cases now that the main evidence is seemingly unreliable.