This is the same patient from the prior post. This is an example of Type I tooth resorption on the mesial root and Type II resorption on the distal root.
Brett Beckman, DVM, FAVD, DAVDC, DAAPM
This 3rd mandibular premolar has very subtle swelling of the gingiva distal to the crown
Radiographically you can see the periodontal ligament space on the mesial root classifying this as type I tooth resorption. This requires full root extraction. In the distal root the space is not present and bone is replacing the rooth. In this case crown reduction of more specifically here partial tooth extraction may be performed to remove tooth to the point where only bone is present. This requires extensive experience and a very high powered head surgical magnifyer to perform properly.
