Home › Top 4 Dental Services in Marengo, Illinois Find best Dental Services in Marengo, Illinois, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Dr. Gary R. Dettman, DDS US, Marengo, IL 60152110 E Washington St MARENGO DENTAL US, Marengo, IL 60152110 E Washington St Cambridge Dental - James E. Sweet, D.D.S. US, Marengo, IL 60152102 S State St Marengo Family Dental- Dr. Strohschein US, Marengo, IL 60152105 S State St