A dentist  helps treat and prevent diseases and conditions in the mouth.
i need to see a dentist. it's been a while. i'm just so afraid of dentists
There is nothing to be afraid of. A dentist has plenty of support staff such as dental hygienists and techs to help you feel better.
i know. Do you know what kind of equipment dentists use?
Sometimes it is necessary for them to use nitrous oxide to make a patient feel more comfortable. Maybe that would help you with your fear.
what is nitrous oxide?
It is a chemical gas that is useful as an anesthetic and for pain relief.
oh. Is that what people call "Laughing gas"?
Yes it is commonly referred to as laughing gas.