日常饮用水中的钙盐与涎液中的酸性物质中和易形成涎腺导管结石。颌下腺导管长而弯曲,涎液自下而上逆重力流动,更易形成结石而堵塞导管,引起涎腺肿胀或急、慢性颌下腺炎,而颌下腺炎症腺体分泌的黏稠分泌物易阻塞颌下腺导管,引起颌下腺肿胀及加重腺体的炎症,单纯行抗炎治疗只能缓解炎性症状,无法解除阻塞,最终只能切除腺体。其腺体切除术存在手术风险,且并发症多、费 Calcium salt in daily drinking water and acidic substances in saliva fluid and easy to form salivary gland duct stones. Submandibular gland duct long and curved, saliva from bottom to top counter gravity flow, more likely to form stones and plug the catheter, causing salivary gland swelling or acute and chronic submandibular gland inflammation, and submandibular gland inflammation of the gland secretions of viscous secretions blocking the submandibular duct, causing Submandibular gland swelling and aggravating inflammation of the gland, simple anti-inflammatory treatment can only relieve the inflammatory symptoms, can not be unblocked, and ultimately only the removal of the gland. The gland resection there is a surgical risk, and complications, fees