Periodontist & Dental Implant Specialsit - Dr. Raouf Hanna, DDS In Houston, Texas Dr. Raouf Hanna is a Board Certified specialist in Periodontics and Implants. He finished his specialty training and residency at the University of Texas Dental Branch - Houston. He also holds a master of science degree. Dr. Hanna currently serves as a program director and assistant professor at the University of Texas Dental Branch, and holds appointments in both departments of Periodontics and... Full Bio