or ‧ tho ‧ don ‧ tist /ˌɔːθəˈdɒntəst, ˌɔːθəˈdɒntɪst $ ˌɔːrθəˈdɑːn-/ BrE AmE noun [countable]
a ↑ dentist whose job is to help teeth to grow straight when they have not been growing correctly
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THESAURUS
▪ dentist someone whose job is to treat people's teeth:
I've made an appointment with the dentist.
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She always dreaded a visit to the dentist.
▪ oral surgeon a dentist who has special training to operate on people's teeth
▪ orthodontist a dentist who makes teeth straight when they have not been growing correctly
▪ dental hygienist/hygienist someone who is specially trained to help a dentist by cleaning teeth and giving advice about how to keep teeth healthy:
Ask your dental hygienist for advice on using floss.
▪ dental practitioner formal a dentist