Provided is an apparatus for processing teeth in bone material, including a reactor, configured for treating said teeth by immersion in liquids, and including connection means, with a cartridge including a plurality of containers for washing and processing liquids, separated liquid-tight from each other, a reaction chamber configured for containing the teeth during processing, and the washing and processing liquids, commandable transfer means of the liquids from the containers to the reaction chamber configured for placing only one of said containers at a time in fluidic connection with the reaction chamber, ejection means of the liquids from the reaction chamber.