Chicago Beautiful Smiles, a collaborative effort of Dr. K. William Mopper and Dr. Dennis B. Hartlieb, has established itself as the premier dental practice in Chicago and the North Shore for excellence in cosmetic, restorative and implant dental care. The practice is located in a beautiful, state of the art facility in “the Glen” in Glenview, Illinois. Please browse our website to get a feel for our facility, the doctors and staff and the services we proudly provide.