Odontophobia, or the fear of dental work, seems equally plausible, as does pentheraphobia - fear of the mother-in-law.
Source: wiktionary
Odontophobia
Synonyms for "odontophobia"
Ranked by relevance and common usage.
Sample sentences
3 total sentences available.
In fact, in dentistry, there is often a widespread condition of odontophobia among patients.
Source: wiktionary
People with dentophobia, also called odontophobia, have a fear of dentists. Someone with dentophobia may have extreme anxiety at the thought of going to the dentist or while in the dentist’s office.
Source: wiktionary