WATERVILLE — Dentist John Poirier recently announced that Anna O’Keefe has joined his practice as an associate dentist.

She will also practice at Waterville’s nonprofit Community Dental Center, where Poirier is a founding board member, according to the announcement.

O’Keefe was an intern at Poirier’s office while she was a Colby College student. She later earned a degree from Tufts University School of Dental Medicine.