Drill bit and method to perform an osteotomy using this drill bit

A drill bit (1), comprising:

• an apical end (2), a coronal end, and a longitudinal axis (L) extending between the apical end and the coronal end,
• a drill bit core (20) extending along the longitudinal axis (L),
• at least two flutes (40), each flute being defined by a concave surface (41) forming a recess along the drill bit core (20);
• and
• an apical end face (10) at the apical end (2), wherein
• apical edges (42) of the concave surfaces (41) and
• an apical edge (22) of the drill bit core (20)
• define the shape of the apical end face so that the apical end face defines a profile of retention arms (50) at the apical end (2), each retention arm being formed between the concave surfaces of adjacent flutes (40),
• the drill bit further comprising a cutting portion extending along the entirety of at least one of the at least two flutes (40), said cutting portion being present along substantially the full length of the drill bit core (20) along the longitudinal axis (L) from the apical end (2) to the coronal end of the portion of the drill bit configured to interact with bone tissue.