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Recurrent infection from stones retained in Wharton's duct after submandibular gland resection warrants intraoperative attention to the duct remnant. Our hypothesis was that retrograde sialendoscopy would help ensure complete stone removal in submandibular gland removal for sialolithiasis.We reviewed 9 sequential cases of submandibular sialolithiasis treated surgically via open procedures at a tertiary care center by a single surgeon between November 2007 and December 2009. The review focused on the clinical history and intraoperative findings.We identified successful application of a new technique of retrograde sialendoscopy performed to detect and remove stones that were retained in Wharton's duct at the time of submandibular gland resection. An index case of complications from a stone retained after submandibular gland resection is presented in a sequential series of cases in which retrograde sialendoscopy was developed.Retrograde sialendoscopy is a novel technique that is useful as an adjunct to standard submandibular gland resection in the management of sialolithiasis.