At Drs. Mopper, Hartlieb & Associates - Chicago Beautiful Smiles – our doctors K. William “Buddy” Mopper and Dennis B. Hartlieb are leaders in cosmetic, implant and restorative dentistry. Using the latest technology and treatment techniques, they deliver the finest cosmetic enhancements and restorations to create beautiful, healthy smiles for our patients. Located at our new state of the art facility at “The Glen”, in the Chicago suburb of Glenview, IL, our distinguished practice provides dental care for patients from around the country and throughout the Chicago area, who are seeking excellence for the care of their mouth and smile.