| +/- amenity=dentist
A dentist practice / surgery.
A dentist / dental practice / dental surgery /dental clinic.
How to map
Use that tag amenity=dentist on a node placed at the centrepoint of the building, or on a closed way (area) drawn around the perimeter of the building
Healthcare tagging mess
Healthcare tags, are not widely agreed upon, and the documentation is a bit of a mess. This tag is probably a good one to use for a dentist, but there are other proposals e.g for a dental clinic to fit into a wider scheme for different clinic types