TMJ Joint Ankylosis is a condition in which the temporomandibular joint (TMJ), which connects the jawbone to the skull, becomes abnormally stiff or fused. This can significantly restrict jaw movement, making it difficult to open the mouth, chew, speak, or maintain proper oral hygiene. TMJ ankylosis may develop due to trauma, infection, inflammation, or other joint-related conditions. Common symptoms include limited mouth opening, jaw stiffness, facial asymmetry, difficulty eating, and discomfort around the jaw joint. Early diagnosis through clinical examination and appropriate imaging is important for understanding the extent of joint involvement. Treatment depends on the severity and underlying cause. In advanced cases, surgical management may be considered to release the fused joint and improve jaw movement, followed by rehabilitation and physiotherapy to support functional recovery.