Welcome To Frederick E. McGuire D.D.S. All that is good begins with a SMILE. When you visit our Downers Grove Dental Office, your smile is our top priority. Dr. McGuire and his dental team are dedicated to providing you with the personalized, gentle care that you deserve. Part of our commitment to serving our patients includes providing information that helps them to make more informed decisions about their oral health needs. This website is a resource we hope you’ll find both useful and interesting. Contact us today! We genuinely hope this site is helpful to you in learning more about our practice, dental conditions and treatments, dental recommendations, and more.