Hi Madelaine,

Maybe the surgery compromised your salivary glands. Dry mouth creates a lot of problems for teeth. The lack of saliva causes tooth decay. My husband was doing well with his teeth when he was using his fluoride trays every night until he got tired and said he having to put too much stuff in his mouth -- he had a c-pap machine, medication to take at night, etc. So he stopped using his fluoride trays. Within months he had to have a root canal and had a number of cavities. Dry mouth was the culprit.