To dream that you are at the dentist, signifies your doubt over the sincerity and honor of someone.

To dream that the dentist is working on somebody else's teeth, denotes that you will soon be shocked by scandal.

A dentist in a dream represents your waking relationship or work-related stress. Perhaps you are concerned about your health or teeth in waking life. Sometimes a dentist is a dreamer's subconscious, and appears to point out the dreamer's bad behavior.