Office Hours
Mon
8am - 5pm
Tue
11pm - 5:30 pm
Wed
8am - 5pm
Thu
8am - 4pm
Fri
Closed
Sat
Closed
Sun
Closed
Phone 410-838-7070
Email info@southmainstreetdental.com

Meet Our Team

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Dr. John Duguid, D.D.S.
A Bel Air native, and graduate of Bel Air High School, Dr. Duguid completed his formal dental education at the University of Maryland Dental School. After graduation, he served for the U.S. Army reserves as a dentist for eight years before establishing his practice in his hometown. He is an active member of the American Dental Association, the Maryland State Dental Association, and several other professional organizations. Dr. Duguid is a firm believer in preventive and conservative dental care. When he’s not caring for his patients, Dr. Duguid enjoys jogging, working outdoors and tinkering in his garage. He and his wife have three children, and six grandchildren.

Cyndi Knight

Cyndi Knight, Office Assistant
A lifelong resident of Harford County, Cyndi was born at Harford Memorial Hospital and graduated from Aberdeen High School. God has blessed her with a beautiful daughter, Morgan, and three amazing grandsons. Cyndi loves the beach, lighthouses, reading romance novels, watching old movies from the Golden Age of Hollywood, HGTV and the Food Network. Her favorite vacation destination is Maine, specifically the DownEast area and Acadia National Park, but she loves all of New England. Cyndi’s favorite sports teams are the New England Patriots, Boston Red Sox, and Boston Bruins.

Teri Sigart

Teri Sigwart, Registered Dental Hygienist