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.
Periodontics is the prevention, diagnosis, and treatment of periodontal (gum) disease, and the placement of dental implants. Periodontists are also experts in the treatment of inflammation inside the mouth.eriodontics, or periodontology, is the specialty of dentistry which encompasses the prevention, diagnosis and treatment of diseases of the supporting and surrounding tissues of the teeth or their substitutes. A dentist who specializes in this is called a periodontist.