Welcome to OpenStreetMap and thanks for updating the map.

In order for data consumers to find you and to display the correct icon on maps, you will need to remove the previous occupier's office=estate_agent tag and add amenity=dentist + healthcare=dentist

https://wiki.openstreetmap.org/wiki/Tag:amenity%3Ddentist
https://wiki.openstreetmap.org/wiki/Tag:healthcare%3Ddentist