I had a third set of teeth, or at least there was a third set of two of my teeth.
Around the age of 10, I had two teeth on the top row removed because my canines were coming out in front of the first bicuspids like fangs (this was in the early 80s, and my orthodontist referred to these teeth as “first bicuspids” but I just checked Wikipedia and apparently, they’re now referred to as “maxillary first premolars”). Either way, these teeth were removed to allow the canines to settle back into correct alignment with the rest of my teeth.
Around the age of 13, all of my permanent teeth were in and my wisdom teeth were starting to poke out. My orthodontist noticed a strange shadow in high in the gums above the second premolars. Over the course of a year, many x-rays were taken and the shadow kept getting darker until it was evident that another tooth was forming.
My orthodontist was concerned that these teeth were going to push my current teeth out and screw up 4 years of orthodontic work and recommended that I have the new teeth surgically removed. There was some precedent for the surgery but it was extremely rare. At this point, my braces had been removed and I was using a retainer (sometimes).
I really didn’t like the idea of anybody doing anything to my teeth and I had just endured 4 years of traumatic orthodontic work and I all out refused to let anything else be done to my mouth.
As a result, my retainer became a permanent fixture of a spare drawer in the bathroom and I didn’t see a dentist again until I was about 20.
The orthodontic work went straight to hell…my teeth fell into misalignment, though far better than if I had never had braces at all.
When I was about 20, I had a visible cavity and went to my regular dentist to get it taken care of and x-rays were taken. The “phantom teeth” as my dentist called them, were still there but hadn’t progressed at all.
The last time I had x-rays taken, I was about 27 and the images were exactly the same.
God only knows what would’ve happened if I hadn’t fought my parents tooth and nail against that surgery. To this day, I believe it would have turned out really bad.
The “phantom teeth” have remained a mystery and will remain so unless something major changes over the course of my lifetime.