Dental exam = 21 tax punkte
Cleaning 9 tax punkte for every five minute period (you may need 20-30 min)
X-rays 5.5 tax punkte for every x-ray
Simply multiply the total tax punkte by the average value of each tax punkte which is about 3.50 CHF and you will find out how much you have to pay.
You will also realize why some people have different bills
Good luck