There's nothing to fear with a dental exam. Your teeth will be visually examined for signs of plaque, tartar and tooth decay. Your gums will also be examined for puffiness or discoloration, which are signs of gum disease. A full set of dental X-rays may also be taken during your dental exam, to enable your dentist to see below the surfaces of your teeth. Dental exams typically end with a dental cleaning, to remove surface stains and buildup.