This is one of the reasons why I returned my cash register in 1994. I have taken account of the return of the cash register approval of this untenable material and the requirement of the statutory health insurance companies to continue using this substance.
A wide range of alternative materials is available. However, careful planning is required to find the right materials.
Also, the restoration and appropriate preparation of a dentition must be planned; it must be e.g. X-rays are taken to check if the roots of the teeth are in order; hidden tooth decay must be found; Tooth roots must be checked for stability, etc.