LDL cholesterol sometimes is called âbadâ cholesterol. A high LDL level leads to a buildup of cholesterol in your arteries. (Arteries are blood vessels that carry blood from your heart to your body.) HDL cholesterol sometimes is called âgoodâ cholesterol. This is because it carries cholesterol from other parts of your body back to your liver.
Spacers are usually used to put spaces in between teeth before braces are established. It can be agitating or painful, but patients are often warned not to pick at them or they will fall out. They are usually rubber, but sometimes they can be metal. They can be used when a patient's teeth are too close together.
How a crown is done. 1  Your dentist gives you a local anesthetic. 2  To make room for the crown, your dentist files down the tooth that needs to be restored.  An impression of the filed-down tooth and nearby teeth is taken. This impression is used to custom make your final crown.