Plano Dentist. Dr. David Clark provides TMJ, Headaches, Migraines, Facial Pain, Teeth Grinding, Orthodontics to the following locations: McKinney, Allen, Frisco. McKinney Dentist providing excellent dentistry including TMJ, Headaches, Migraines, Facial Pain, Teeth Grinding, Orthodontics in Plano, McKinney, Allen, Frisco, .