At Castle Rock Smiles in Castle Rock, Colorado, children, toddlers and teens look forward to seeing the dentist. Dr. Layne Benzley is a board certified pediatric dentist who knows just as much about how to have fun with his young patients as he does about pediatric dentistry. Dr. Benzley earned his D.D.S. degree from the University of Iowa and his pediatric dental specialty certificate from the Eastman Dental Center at the University of Rochester in Rochester, NY.