Hi All, this is my first post.  Patient is 13y/o SF puggle.  Rad is of 308.  Looks to have an enamel defect or erosive lesion (circular lucency) but I could not find any defect in the surface of the crown.  The periodontal space is narrowed/missing and the root looks like it is being resorbed. What am I seeing in this rad?  306 has a similar finding as far as lucency but again no visible or probed defect.  Thanks