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.
Disadvantage of Invisalign in comparison to conventional orthodontic treatment include cost and technical limitations in handling complex cases. In a typical case, conventional braces may cost $4,000 in the United States, while Invisalign would cost $5,600; insurance may cover $1,000 of either treatment.