What happens next in this paragraph?

How to treat weak tooth enamel
Identify your symptoms.
The loss of enamel can be a symptom or cause of many different mouth diseases. It might be related to gum disease, enamel hypoplasia, fluorosis, cavities, or cracked teeth.
Pick from: a). Before you visit your dentist, you should make a list of all of your mouth related problems so that they can more accurately diagnose your problem. You might note : Sensitivity to hot or cold foods.; b). Contact your dentist about your symptoms and determine what the best course of treatment is for your condition. Use a grind containing a baking soda paste.; c). Some of the symptoms of gallchoids is a complete lack of tooth enamel. This is due to the loss of enamel in the middle region of the lower jaw area.; d). Even if there is an unexplained symptom in your mouth, think about why that symptom started or what the reason is. If you've been diagnosed with this symptom, these must be facts.;
a).