Guided drill, kit of guided drills and methods of osteotomy for inserting a dental implant using the kit

A method of osteotomy for a dental implant using a guide sleeve, said guide sleeve having a hollow cylindrical shape with an inner radius R2, the method comprising:

• a. providing a surgical kit having a plurality of guided drills;
• b. following a chart of the surgical kit, selecting a first guided drill from the plurality of guided drills and drilling a first drill in an osteotomy site in a bone of a patient's jaw;
• c. according to the chart of the surgical kit, selecting a next guided drill from the plurality of guided drills and drilling a next drill in a bone of a patient's jaw;
• and
• d. repeating step (c) as many times as desired by a user of the surgical kit;
• wherein each of the plurality of guided drills comprises:
• a shank configured to be releasably mechanically associated with a contra angle hand piece, said contra angle hand piece being configured to revolve the guided drill around a revolution axis;
• a guide body having an outer surface geometrically confined to a cylinder having a radius R1 smaller than R2 so that said outer surface coincides with the cylinder at least along an areal section thereof, the guided drill is thereby configured to slidingly revolve inside said guide sleeve, whereas said revolution axis coincides with a symmetry axis of said guide sleeve, so that the guided drill is constrained to displacements substantially along said revolution axis;
• a stopper arranged between said shank and said guide body, said stopper extending radially to a distance greater than R1 from said revolution axis, and
• a blade portion configured for drilling at a diameter smaller than 2*R1, said blade portion arranged next to said guide body, so that said guide body is between said blade portion and said stopper;
• wherein said shank, said stopper, said guide body and said blade portion are integrally formed together from a hard alloy, and wherein said radius R1 is uniform across each of the plurality of guided drills.

An osteotomy set for a dental implant using a guide sleeve, said guide sleeve having a hollow cylindrical shape with an inner radius R2, comprising:

• a plurality of guided drills, wherein each of the plurality of guided drills comprises:
• a shank configured to be releasably mechanically associated with a contra angle hand piece, said contra angle hand piece being configured to revolve the guided drill around a revolution axis;
• a guide body having at least a portion of an outer surface geometrically confined to a cylinder having a radius R1 smaller than R2 so that said outer surface coincides with the cylinder at least along an areal section thereof, the guided drill is thereby configured to slidingly revolve inside said guide sleeve;
• a stopper arranged between said shank and said guide body, said stopper extending radially to a distance greater than R1 from said revolution axis, and
• a blade portion configured for drilling at a diameter smaller than 2*R1, said blade portion arranged next to said guide body, so that said guide body is between said blade portion and said stopper;
• wherein said shank, said stopper, said guide body and said blade portion are integrally formed together from a hard alloy, and wherein said radius R1 is uniform across each of the plurality of guided drills.