About : Iowa Center for Family and Cosmetic Dentistry Welcome to the Iowa Center for Family and Cosmetic Dentistry, the West Des Moines dental practice of Dr. Phelan Thomas. Dr. Thomas and his staff enjoy the fact that their patients see them not just as their dental service provider, but as friends. And because friends should be treated like family, you can be assured that when you step in his office, you’ll feel at home and will be well taken care of. Dr. Thomas not only takes the time to thoroughly explain treatment options, but he listens, gets to know you and wants to personally understand the goals you have for your oral health and the appearance of your smile.