Just reading these answers makes my tummy go over. I have true dental phobia. My memories of the dentist are of pain, severe pain. Even as a young adult, the pain was so bad that on at least one occasion I lost consciousness. I learnt much later that not only do I have nerves that are twisted my gums but the roots are too. In addition, just as I've always claimed, the local anaesthetic used in dentistry doesn't work. To add to it all, I have Trigeminal Neuralgia, the vibrations of drills and certain movements are enough to trigger attacks.
So, I no longer have check ups, I wait until things become too painful and am then admitted for dentistry under GA.