To establish an appropriate fixation during the start of the surgical procedure, guided anchor pins secure the surgical template in the correct position. When planning the guided anchor pins, the inclination and depth are important. Anchor pins secure the surgical template during surgery. Typically 3-4 anchor pins are placed in an edentulous jaw. In order to gain stable support and also to allow for temporary removal and exact repositioning of the surgical template during specific surgical procedures (mini-flap and flap protocols), the anchor pins must be placed in areas with adequate volume of cortical bone. To minimize the risk of tissue damage due to penetration, bi-cortical anchorage of anchor pins must be avoided.
Notes
— The position and orientation should allow easy installation (consider lip retraction and mouth opening) as well as avoid critical structures like blood vessels.
— The surgical index should allow access for drilling and placement of the anchor pins.
Add an anchor pin to the treatment plan
Correct inclination and depth of anchor pins