B A,you asked for experiences with cx dental.
About four years ago I went to QMHS for a dental check up at kitty city. The young chap there recommended that I have two wisdom teeth removed as he said they were impacting.
I returned to my usual dentist in central and got a second opinion. He was adamant that the teeth were good and was upset by what he considered an un-professional suggestion.
Don't know if this guy is still with them but such attitudes can become systemic in an HMO.
FWIW