19 Muzzey St., Suite 302, Lexington, MA 02421 Our dentist may recommend dental sealants to help protect your teeth and smile from cavities. This simple preventive treatment offers long-lasting protection for your teeth and can be applied quickly and comfortably during your regular visits. Call 781-861-9597 today to learn more about dental sealants in Lexington, Massachusetts, and make an appointment with Dr. John Pallotta.