The telescopic hinge comprises a front face element intended to be joined with a side stud extending along the front face of the frame and having a first fastener, and a branch element, intended to be joined with the corresponding branch of the frame and having a second fastener capable of cooperating with the first fastener in order to hold the front face element against the branch element. The telescopic hinge also includes an intermediate fastener capable of cooperating respectively with the first fastener and the second fastener.