Treatment of choice for bilateral bony tissue undercut is
**Core Concept**
Bilateral bony tissue undercut refers to a condition where there is a deficiency in the bone tissue on both sides of a tooth, typically caused by periodontal disease. The treatment of choice aims to restore the lost tissue and prevent further bone loss.
**Why the Correct Answer is Right**
The treatment of choice for bilateral bony tissue undercut is a surgical procedure known as **guided bone regeneration (GBR)**. This involves placing a barrier membrane over the defect to protect the bone graft material and promote new bone growth. The bone graft material, usually a combination of autograft and allograft, is placed in the defect to fill the void and stimulate bone regeneration. The barrier membrane is then removed after a period of healing, and the new bone is allowed to mature.
**Why Each Wrong Option is Incorrect**
**Option A:** Bone grafting alone is not sufficient to address the bilateral bony tissue undercut, as it does not provide a physical barrier to protect the graft material and promote new bone growth.
**Option B:** This option is incorrect, as the use of a soft tissue graft alone is not effective in addressing the bony tissue deficiency.
**Option C:** This option is incorrect, as the use of a bone graft material without a barrier membrane is not sufficient to promote new bone growth and prevent further bone loss.
**Clinical Pearl / High-Yield Fact**
GBR is a highly effective treatment for bilateral bony tissue undercut, but it requires careful planning and execution to ensure optimal outcomes.
**Correct Answer:** C. Bone grafting with guided bone regeneration (GBR) is the treatment of choice for bilateral bony tissue undercut.