Apparatus (1) is envisaged for processing teeth in bone material, comprising a reactor (20), suitable for treating said teeth by immersion in liquids, and comprising: connection means (21), with a cartridge (30) comprising a plurality of containers (31 ) for washing and processing liquids, separated liquid-tight from each other, a reaction chamber (22) suitable for containing the teeth during processing, and the washing and processing liquids, commandable transfer means (23) of the liquids from the containers (31) to the reaction chamber (22) suitable for placing only one of said containers (31) at a time in fluidic connection with the reaction chamber (22), ejection means (24) of the liquids from the reaction chamber (22).