Mar 18, 2016. There are 11 major organ systems in our body. This includes the circulatory, respiratory, digestive, excretory, nervous, and endocrine systems. As well as the immune, skeletal, reproductive, muscle and integumentary systems.
Dental crowns can be made up of all different sorts of materials -- porcelain or a combination of porcelain with metal. The type that's chosen not only depends on where the tooth is situated, but what the condition of the tooth is (how discolored it is and how decayed it is), as well as the condition of the gums.
Quick Answer. Modern dentures are typically made out of plastic, often with a metal base, though this may be made out of plastic as well. The plastic of choice for dentures is polymethyl methacrylate acrylic, or PMMA. Historically, dentures have been made out of animal teeth, ivory, porcelain and vulcanite rubber.