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.
*Worth It ratings only factor in Worth It and Not worth it ratings. They do not include Not sure.. *Does not include Not sure. A dental crown is a protective covering used to enhance the strength and appearance of damaged teeth. Crowns are most commonly made of porcelain, stainless steel, or ceramic. LEARN MORE âº Rated 89%.