Gentle Dental Hanover Gentle Dental Hanover is NOW OPEN! Our office is located on Washington Street in the historic "country town" of Hanover, MA. Hanover's easy access to major highways allows it to be within easy commuting range to Boston and is home to the North River providing opportunities for both summer and winter activities. Gentle Dental provides all digital X-rays, has the latest in dental technology including digital modeling, and is open on evenings and Saturdays to fit with your family’s busy schedule. We look forward to seeing you soon!