Sialolithiasis is the most frequent disease of the salivary glands, causing swelling and/or pain of the affected site. We report a 44-year-old woman who presented with severe pain in the lower left second molar region without swelling. Sialoliths on her left submandibular gland
were confirmed by radiographic examinations. After robot-assisted sialoadenectomy, the pain did not recur but remained facial paralysis and unaesthetic scar.