In the eye's case, however, the film screen is your retina. Your retina is in the very back of the eye. It holds millions of cells that are sensitive to light. The retina takes the light the eye receives and changes it into nerve signals so the brain can understand what the eye is seeing. A Muscle Makes It Work
Dentures, also known as false teeth, are prosthetic devices constructed to replace missing teeth; they are supported by the surrounding soft and hard tissues of the oral cavity.
Orthodontia, also called orthodontics and dentofacial orthopedics, is a specialty field of dentistry that deals primarily with malpositioned teeth and the jaws: their diagnosis, prevention and correction. An orthodontist is a specialist who has undergone special training in a dental school or college after they have graduated in dentistry. The field was established by the efforts of pioneering orthodontists such as Edward Angle and Norman William Kingsley.