Dr. Bentley was born and raised in Pikeville, Kentucky. He attended Robinson Creek Elementary and graduated from Virgie High School in 1982. Dr. Bentley attended undergraduate school at Pikeville College and then graduated from the University of Louisville College of Dentistry in 1991. Dr. Bentley and his wife, Kitty, have two children, Marc and Mackenzie. After graduating from dental school, they moved back to Pikeville where he went into practice with Dr. Marvin T. Bush.

Dr. Bentley is a member of the Academy of General Dentistry. He completes several continuing education class throughout the year. He is a member of the Methodist Church. In his spare time he enjoys sports and is an avid hunter.