Tehran University of Medical Sciences Frontiers in Dentistry 2676-296X 22 0 2025 07 27 Single Injection of Twin Nerve Block in Longstanding Unilateral Temporomandibular Joint Dislocation: A Novel Technique 4511 4511 Neeraj Kumar Department of Pediatric Dentistry, Postgraduate Institute of Child Health, Noida, Uttar Pradesh, India Richa Kumari Postgraduate Institute of Dental Sciences, Rohtak, Haryana, India 2022 06 11 2022 11 30 Unilateral temporomandibular joint (TMJ) dislocation is a rare condition often triggered by yawning, vomiting, or other activities involving wide opening of the mouth, resulting from the forward movement of the condylar head. This case report highlights a longstanding unilateral TMJ dislocation managed by the single injection of local anesthetics into the deep temporal and masseteric nerve peripheries, alleviating muscle spasm and pain to restore TMJ function. https://fid.tums.ac.ir/index.php/fid/article/view/4511 https://fid.tums.ac.ir/index.php/fid/article/download/4511/2155