Oral Complications of Systemic Bacterial and Fungal Infections

Oral microbiota dysbiosis accelerates the development and onset of mucositis and oral ulcers

With the rapid development of metagenomic high-throughput sequencing technology, more and more oral mucosal diseases have been proven to be associated with oral microbiota shifts or dysbiosis. The commensal oral microbiota can greatly influence the colonization and resistance of pathogenic microorganisms and induce primary immunity. Once dysbiosis occurs, it can lead to damage to oral mucosal epithelial defense, thus accelerating the pathological process. As common oral mucosal diseases, oral mucositis and ulcers seriously affect patients' prognosis and quality of life. However, from the microbiota perspective, the etiologies, specific alterations of oral flora, pathogenic changes, and therapy for microbiota are still lacking in a comprehensive overview. This review makes a retrospective summary of the above problems, dialectically based on oral microecology, to provide a new perspective on oral mucosal lesions management and aims at improving patients' quality of life.

Conservative Management of Chronic Suppurative Parotitis in Patients with Sjögren Syndrome: A Case Series

BACKGROUND Parotitis is an inflammation of the parotid gland, which can be caused by factors including infection, radiation, and hyposalivation secondary to systemic conditions, such as Sjögren syndrome, rheumatoid arthritis, or medication. Bacterial parotitis is a rare complication that can be observed in patients with hyposalivation. However, it is also observed in elderly and immunocompromised patients. Lack of continuous flushing of salivary glands and their ducts due to decreased salivary flow renders the glands prone to retrograde colonization with oral microflora. Several microorganisms have been associated with bacterial infections of the parotid glands; Staphylococcus aureus is the most common, accounting for 80% of cases, followed by mixed bacterial communities, including streptococci, anaerobes, and gram-negative bacilli. Bacterial parotitis presents as tenderness, swelling, and purulent sialorrhea from the salivary gland's duct. Immediate administration of broad-spectrum antibiotics, based on the results of the patient's culture and sensitivity test, has shown success in treating these cases. CASE REPORT We report 3 cases of chronic suppurative parotitis secondary to dry mouth and due to Sjögren syndrome that did not respond to oral or intravenous antibiotics and was successfully managed using conservative methods, such as the local application of superficial moist heat and periodic pus drainage by manipulating the parotid glands at dental clinics. CONCLUSIONS We concluded that conservative approaches, such as massaging the glands, local application of superficial moist heat, and periodic pus drainage without using antibiotics, should be considered as the first-line management of bacterial infection of the parotid glands.