Dollars are made up of Quarters. Quarters are made up of Nickels. Nickels are made up of Pennies. There is no place for Dimes in this system. A Quarter can not be divided up into Dimes unless you go through the trouble of cutting a Dime perfectly in half. Most establishments lack the resources to accomplish this for you when giving you your change.
Dimes have no purpose in the division of money. A hard-working Nickel carries the value of 5 Pennies, but the lazy Dime gets away with doing only twice the work of the Nickel - All while the Quarter effortlessly pulls the weight of 5 Nickels that the Dime should be pulling.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.