Last year I acquired a couple of Barbie dolls and Ken to use as models for some dolls' clothes. One was a talking dentist Barbie and I've just fitted her with 3x AG13 batteries, just to hear what she says. Four sounds: "Let's brush!", sounds of brushing, although more like scrubbing floors than teeth, a rather worrying drill sound, which google tells me should be the patient rinsing, and finally "Great checkup!". (Barbie only talks in !!! marks)
She was part of a series of career dolls, but she wears enough long loose hair for a full size human and high heels in the surgery. I wonder how many children wanted to become dentists after playing with her?
Googling brought up a description of Ken as the 'ideal boyfriend'. One listing said he 'says what you want to hear' but another was mute.