Welcome to Drum Hill Dental Family, Cosmetic & Implant Dentist in Chelmsford When you visit our friendly dental office, your smile and overall dental health is our top priority. Our entire team of dentists and hygienists are dedicated to providing you with the personalized care that you deserve. Stephen Markowitz, DMD, Theresa Cleary, DMD, Stephen Comstock, DMD or Daniel K. Coleman, DMD, MS, practice a full scope of general and cosmetic dentistry with expertise ranging from porcelain veneers to dental implants, dental crowns, teeth cleaning, gum disease treatments and dental bridges. New patients are always welcome!