If a patient has 7mm of bone above the mental nerve and IAN canal, what is the recommended treatment for their new removable prosthesis with implants?

The recommended treatment of placing two implants in the parasymphysis with a tissue bar is appropriate in this context due to several considerations involving implant-supported removable prostheses. When there is only 7mm of bone above the mental nerve and inferior alveolar nerve canal, this indicates that vertical bone height is somewhat limited, particularly for providing adequate support for more implants or for specific implant placements that may require more bone.

Choosing to place two implants in the parasymphysis region allows for a more strategic approach, taking advantage of the available bone while maintaining a safe distance from the essential anatomical structures, such as the mental nerve and IAN canal. This configuration can provide sufficient retention and support for a removable prosthesis. Utilizing a tissue bar helps in distributing the load across the implants, further enhancing stability and functionality while minimizing potential complications like nerve injury.

In contrast, the other treatment options could have limitations. For instance, placing one implant in the midline may not provide adequate support for a removable prosthesis, given that single implants alone typically do not offer sufficient retention or stability. Three implants with a fixed bridge might be challenging due to limited vertical bone, making it less feasible, and likewise, four implants in the anterior mandible could further risk positioning near critical anatomy,