periodontist
/ˌpɛriəˈdɑntɪst/
noun
- A dentist who specializes in treating diseases of the gums and the bones that support the teeth.
- After years of gum problems, I finally made an appointment with a periodontist.
- The periodontist explained that I needed a deep cleaning to save my teeth.
- My dentist referred me to a periodontist because my gums were very swollen.