The year 2021 saw the publication of the Special Issue ""Diseases of the Salivary Glands" (https: //www.mdpi.com/journal/jcm/special_issues/Salivary_Glands), Part I, covering recent and novel advancements as well as future trends in the field of research evaluating diagnostic and therapeutic treatment of salivary gland (SGs) diseases. Given the enormous success of Part I, the Special Issue "Diseases of the Salivary Glands" Part II has been...