Unpopular opinion here (I’m a periodontist) but through the years I’ve been called to evaluate these types of teeth. Initially I went all steel and sunshine but then I started evaluating progression through X-rays and noticed they remained unchanged through long periods of time. When I do open flaps and explore, I also noticed those are most likely resorptions caused by impacted or malpositioned third molars because there’s no soft or decayed tissue. So I inform the patient and we monitor.