Final answer:
To prepare an abraded surface before applying restorative wax, a hardening compound is needed to firm up the tissue, ensuring better wax adherence. Antiseptics are the correct choice for microbial control on living tissues to prevent infection.
Step-by-step explanation:
Before applying restorative wax to an abraded surface, the tissue needs to be treated with a hardening compound. This compound prepares the tissue by firming it up, which allows the wax to adhere better and provides a smooth foundation for the restorative work. It is important to use the correct substance to ensure that the wax application is successful and creates a natural appearance.
When dealing with tissues for microbial control to prevent infection, the suitable solution to use is an antiseptic. Antiseptics are suitable for use on living tissues to reduce the possibility of infection, sepsis, or putrefaction. Disinfectants, while similar in function, are generally used on non-living surfaces and objects to destroy microorganisms.