Serving families and individuals in Mission Viejo for over 10 years Dr. Cullen D.D.S. and R. Johnson are devoted to providing the highest quality care with a warm, gentle touch. Using their state-of-the-art dental facility featuring the newest equipment in general and cosmetic dentistry, Drs. Cullen and Johnson provide expert care in numerous dental procedures. They will apply the most advanced techniques whether it is zoom whitening, veneers and lumineers; or the more complex procedures of crowns/bridges, root canal therapy and periodontal surgery