6. Cortical Bone Punch (optional)

Infinitas mini implants are self-drilling and may be inserted directly in many situations using the standard screwdriver (DB10-0021). However, it is beneficial to first perforate the cortical plate where it is thick e.g. the mandible and mid-palate. This facilitates implant insertion by reducing the generation of excessive insertion resistance/torque. Perforation of the cortical plate also prevents slippage of the mini implant tip when it is inserted at an oblique angle to the cortical plate. The cortical punch has a 2mm diamond hard tip. The punch should be placed at the planned insertion angles. If a stent is used then the punch will fit precisely into the guidance channel to ensure accuracy. Two versions of the cortical punch are available:

A) A long shaft punch (DB10-0023) fits into the standard screwdriver (DB10-0020). Rotation of the middle of the screwdriver handles causes the punch tip to perforate the cortical plate.

B) In those areas which are difficult to access, such as molar and palatal sites, it is preferable to use the mini bone punch (DB10-0028) in a speed reduction contra angle handpiece (e.g. 16:1, 64:1, 256:1). It is important not to exceed 1000RPM to avoid over-heating the bone, but irrigation is not required. To ensure the exact position of the cortical perforation, a stent is recommended in such limited access situations.