View a graph which plots historical exchange rates for the Swiss Franc against the US Dollar. Invert table. The table currently shows historical exchange rates for Swiss Francs per 1 US Dollar. Invert the table to see US Dollars per 1 Swiss Franc. Export to Excel. Export this data to a CSV file which can be imported by Microsoft Excel.
Dental instruments are the tools that dental professionals use to provide dental treatment. They include tools to examine, manipulate, restore and remove teeth and surrounding oral structures.
A regular cleaning is known as prophylaxis in dental terms. It is defined as the removal of plaque, calculus, and stains from the tooth structure. A prophylaxis is accomplished by using dental instruments that scrape away deposits from the teeth. An electric device, called an ultra-sonic or sonic scaler may also be used. This deposit removal is performed on tooth structures that have not been affected by bone loss, periodontal disease, or infection; typically the crowns of the teeth. A regular cleaning is recommended for persons who do not have dense deposits.