Depth stop

A method for making a guide channel in a drilling jig for drilling a dental implant jaw bore to be bored into a patient's jaw bone to a target depth L1 using a jaw drill with a drill stop, the method comprising:

• providing an auxiliary jig comprising a coupling structure which corresponds to a corresponding coupling structure of the drilling jig so that the auxiliary jig and the drilling jig are arranged in a defined spatial position relative to each other;
• drilling an auxiliary bore into the auxiliary jig so as to be in a virtual axial alignment with the planned dental implant jaw bore;
• inserting an auxiliary bore sleeve comprising a reference ring plane into the auxiliary bore in an axial position predefined by the target depth L1 of the planned jaw dental implant jaw bore;
• placing the auxiliary jig on the drilling jig in the spatial position defined by the coupling structure and the corresponding coupling structure;
• drilling a guide bore into the drilling jig so as to be in axial alignment with the auxiliary bore sleeve;
• inserting a guide sleeve into the guide bore using a positioning tool comprising a reference device so as to form the guide channel, the guide sleeve comprising a depth stop for the drill stop, the guide sleeve being inserted to an insertion depth defined by the reference ring plane and the reference device;
• and
• removing the auxiliary jig.

A method for making a guide channel in a drilling jig for drilling a dental implant jaw bore to be bored into a patient's jaw bone to a target depth L1 using a jaw drill with a drill stop, the method comprising:

• providing an auxiliary jig comprising a coupling structure which corresponds to a corresponding coupling structure of the drilling jig so that the auxiliary jig and the drilling jig are arranged in a defined spatial position relative to each other;
• drilling an auxiliary bore into the auxiliary jig so as to be in a virtual axial alignment with the planned dental implant jaw bore;
• inserting an auxiliary bore sleeve comprising a reference ring plane into the auxiliary bore in an axial position predefined by the target depth L1 of the planned jaw dental implant jaw bore;
• placing the auxiliary jig on the drilling jig in the spatial position defined by the coupling structure and the corresponding coupling structure;
• drilling a guide bore into the drilling jig so as to be in axial alignment with the auxiliary bore sleeve using a blind hole drill comprising a blind hole drill stop ring surface as a reference device, which together with the reference ring surface defines a blind hole depth,
• inserting a guide sleeve so as to form the guide channel, the guide sleeve comprising a depth stop for the drill stop, into the guide bore to an insertion depth defined by the blind hold depth;
• and
• removing the auxiliary jig.