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.
Both dentists and periodontists are focused on oral health, but while dentists mainly care for teeth, periodontists are focused on gum health and the health of the bones in the jaw. A periodontist performs such treatments as like bone grafting, deep pocket cleanings, and soft tissue removal.