FATCA controls and service providers. The Foreign Account Tax Compliance Act (FATCA) is intended to detect and deter the evasion of US tax by US persons who hide money outside the US.
If the teeth or jaws do not align this is called malocclusion, and this can lead to a number of dental problems. Many times if your bite is off it can cause more pain and destruction than the more commonly recognized problems of tooth decay or gum disease. For patients with a bite discrepancy, it is important to stabilize the jaw and bite before starting any definitive treatment on the teeth (fillings or crowns).
A number of things can cause tooth sensitivity so if it does not go away, it is necessary for your dentist to determine the exact problem. There are many reasons for tooth sensitivity as well as a number of treatments. A desensitizing treatment or a simple bite adjustment is all that might be needed.