IPA: /ˈdɛn.tɪst/
KK: /ˈdɛntɪst/
A professional who is trained to take care of people's teeth and gums, helping to prevent and treat dental problems.
I have an appointment with my dentist next week for a check-up.
Dentist → It is formed from "dent" (from Latin "dens", meaning tooth) and "-ist" (meaning one who specializes in). A dentist is a person who specializes in teeth and dental care.
Think of someone who specializes in taking care of your 'teeth' ('dent') — that's what a dentist does.