Device failure in sialoendoscopy: Intraoperative practical decision-making.

Sialoendoscopy has recently emerged as an alternative to gland excision in management of recurrent sialoadenitis and sialolithiasis. This technique has both diagnostic and therapeutic purposes. We report a case of unusual device failure during removal of a submandibular stone from Wharton's duct, which ultimately led to ductal avulsion. Sialoendoscopy is safe and effective in management of non-neoplastic major salivary gland disorders. Ductal avulsion can happen during mechanical procedures like stone removal or dilation of strictures. Failing to release the stone from the basket is very rare but can be problematic and lead to major complications.