Abstract: A drilling tool for dental implant surgery, this tool having: a drilling head; a cylindrical mandrel rigidly connected to the head and coaxial therewith, this mandrel being able to be mounted in a pin in order to effect a rotational coupling of the drilling head to this pin; a mesio-distal guide cylinder coaxial with the drilling head, this mesio-distal guide cylinder having an external diameter (D2), called the mesio-distal guide diameter, greater than the drilling diameter (D1); a vestibulo-lingual guide cylinder coaxial with the drilling head and situated under the mesio-distal guide cylinder, this vestibulo-lingual guide cylinder having an external diameter (D3), called the vestibulo-lingual guide diameter, smaller than the mesio-distal guide diameter (D2).

Abstract: Self-locking forceps for gripping and transporting small objects and usable in particular in dental surgery, said forceps comprising two branches that intersect freely and have a proximal manoeuvring part and a distal gripping part, the proximal parts being joined elastically at one of their ends, while the distal parts end in jaws, such that the closing together of the proximal parts or grips causes the distal parts to spread apart, while release of the pressure exerted on said proximal parts is translated into an automatic closing together of the distal parts and therefore of the jaws in a clamping position; at least one of said jaws is provided with a cushion of flexible material; said self-locking forceps being provided with a means for limiting the clamping force generated by the return force of the spring formed by the proximal parts of the forceps.