All laboratories and hospitals are required to sterilize their custom procedure trays, this is because viruses, fungi, bacteria and other disease causing agents cannot be eliminated totally by just disinfecting the area where medical procedures are carried out. What disinfection does is to remove the agents and does not kill them.
Sterilization is the most effective way of cleaning all equipment including custom procedure trays. There are several contagious diseases that can be transmitted through custom procedure trays since this tools are also prone to armful agents.
Chemical sterilization is mostly used when there are tools in the custom procedure trays that may be affected by heat when using steam sterilization. It can also be used on tools that can be damaged by irradiation. Any tool that has rubber or plastics on it can be made brittle after irradiation.
al halogens that are currently in use, they include iodine, chlorine and their derivatives. They are used to kill spores and have a general microbicidal effect. Chlorine works by binding itself to free amino acids and hence disinfecting the custom procedure trays. Iodine on the hand has effects that resemble those of chlorine and is mostly used to disinfect wounds and skin.