Dental practices are notorious for being badly run: dentists often have great technical skills but are lacking in people skills, business skills, common sense, etc. Seyle in The Stress of Life talks about early research about how many dentists struggle because of this.

Dentists frequently get talked into MLM scams (which they have a lot of money to lose on) or Scientology management training (which they have a lot of money to lose on.)

Given all that many of them might be happier if they work for private equity, and that trend is stronger with more women entering the field. I dunno if women are really worse at running a business but I think they are better at recognizing that they're not good at running a business when they're not.