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.
1 Vivera clear plastic retainers by Invisalign have an annual fee of $300-$750, for a new set of identical retainers delivered every three months. 2  Vivera retainers can be used by people whose teeth were straightened by conventional braces as well as those who used Invisalign's series of clear plastic aligner trays.