Of course, this possibility exists and we can send you samples of all the materials we use. However, we only use materials that a normally functioning immune system can tolerate without problems (zirconium oxide ceramics, glass ionomer cement, Admira resin, etc.). Prior to remediation, the immune system is still compromised and may not accept even these materials. However, we have never experienced in 14 years that these materials AFTER the renovation would not have been tolerated.