Hi @darapoza Thanks for joining in.
Dental issues after radiation are often caused by a combination of lower levels of saliva or just dry- mouth in general. Some have had tooth root damage or killed off due largely to radiation.
Then there are those like me, a select few who had the bone killed by the radiation, in my case the left mandible or lower jaw. This is known as Osteoradionecrosis or literally bone-radiation-death. When the mandible or a section there of dies, the blood supply stops and the tooth roots die.
Now normally with a common root canal, the tooth root is drilled out and filled with a cement. The tooth then is essentially dead but still functional because the base or bone is strong and holds the tooth firm. But if the bone is dead, it decays and the teeth fall out, like a tree with the soil removed.
Ah but don’t be discouraged, the bone can be rebuilt with a bone and tissue graph and a prosthetic teeth group installed. I eat corn on the cob easily.
Keep a watch on your teeth. An X-ray will show if your bone has deteriorated or if you get infections along the gum line can be a marker as well.
Likely it is dry-mouth which can be helped with rinses and possibly a drug such as Salagin (sp?) or similar.
Anyway, check out other opinions or enter dry mouth in the search box above for additional posts.
Me, I’m just one of many patients like you who experienced the gift of cancer.