Welcome to Our Practice Somerset Dentists, Raj Sinha, D.M.D., ICOI and Joanna Hrymoc-Sinha, D.M.D., Provide Excellent Dental Care! Your smile is one of the first things people notice. If you want a beautiful healthy smile and exceptional dental health, visit the practice of Raj Sinha, D.M.D., ICOI & Joanna Hrymoc-Sinha, D.M.D. Dr. Raj Sinha & Dr. Joanna Hrymoc-Sinha, along with their caring team, strive to provide patients with the highest quality, most comfortable dental care in a relaxing, state-of-the-art environment.