dental instrument comprising a dismountable assembly of two components, one male and the other female, and technical assemblies of two male / female components corresponding

The invention relates to a dental instrument, comprising two components to be assembled, one female having a cavity delimited by an internal wall and the other male adapted to enter said cavity, characterized in that said male component has a securing portion having at least one projecting radial edge, said securing portion being deformable in a radial direction from an insertion configuration to a connecting configuration in which said projecting edge is radially moved against said inner wall so as to cut it, and in that said inner wall has a fastening zone able to cause deformation of said securing portion to bring the latter in the connecting configuration, the cavity joining area being made of a material of less than or equal hardness than the material of which sheave Lisee said securing portion.