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Objective: To perform a systematic review and meta‐analysis on the efficacy and safety of sialendoscopy in the treatment of obstructive diseases of the major salivary glands. Materials and Methods: We searched four databases for literature. The primary outcome assessed was the success rate. Secondary outcomes included the use of supportive devices, number of sialadenectomies and complications. Risk of bias was assessed. Meta‐analyses with subgroup analysis were performed. Results: In total, 91 studies were included, comprising 8218 patients undergoing 9043 sialendoscopic procedures. The majority of studies had a medium or high risk of bias. The incidence of sialadenectomy varied from 0% to 14%. No major complications were reported. Meta‐analysis revealed a weighted pooled success rate of 80.9%. Subgroup analyses showed the weighted pooled success rate in patients with sialoliths (89.6%), stenoses (56.3%), submandibular glands (88.3%), parotid glands (81.2%), patients treated by an endoscopic‐assisted transoral removal of a sialolith (86.3%), patients treated by a combined approach of the parotid gland (78.2%), patients with JRP (67.0%) and with RAIS (45.8%). Conclusion: The success rate of sialendoscopy did not considerably change in the last 9 years. Sialendoscopy is an efficient and safe procedure for the treatment of major salivary gland obstructive disease. [ABSTRACT FROM AUTHOR]