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). It is beneficial to use the cortical bone punch in areas of dense cortical bone e.g. the posterior mandible, the mid-palate, and the palatal alveolus. This facilitates implant insertion by reducing the generation of excessive insertion torque. Indentation 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 long 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:

i) The standard punch (DB10-0023) fits into the standard handle (DB10-0020). Clockwise rotation of the screwdriver handles causes the punch tip to perforate the cortical plate.

ii) In those areas which are difficult to access, such as maxillary sites, it is preferable to use the mini bone punch (DB10-0028) in a speed reduction (e.g. 128:1) contra angle handpiece . It is important not to exceed 100 RPM 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.