Sharp-stabbing pain lasting a few seconds is normal and typically indicates transient nerve compression, called the 'precordial pinch'; 3. Caffeine can cause some normal heart rate increase, which can be associated with chest discomfort. ...Read more.
The price for Invisalign cases will generally vary depending on the complexity of the case. On average a fairly straight forward case might cost between $3000-$4000, and a more complex case may cost $5000-$6500.
Reviewed By: Thomas E. Dudney, DMD. The cost of Invisalign treatment is comparable to that of traditional braces  ranging from $3,000 to $5,000 (based on the U.S. national average).