East Side Dental Arts YOUR PREMIER DENTIST IN MANHATTAN’S UPPER EAST SIDE, NYC Get the million-dollar smile you deserve. At East Side Dental Arts we strive to provide comprehensive, minimally invasive, technology-based dentistry with the patient’s safety and comfortability as our number one priority. With over three decades of specialized training and experience in improving the smiles of New York City patients, Dr. M. Marc Liechtung is considered a pioneer in the field of cosmetic dentistry. Our multi-disciplinary team of advanced general, restorative, and cosmetic dentists and staff have a passion for science, technology, and art. We believe that this collaborative approach is what is needed to achieve the best results for patients.