October 26, 2019 By Lynn Schneider; Editor, ArchWired.com Dense fibrous tissue, covered by mucous membrane, which envelops the Alveolar Bone of the upper and lower jaw and surrounds the necks of the teeth. Plural: Gingivae. The Gingivae are also called the Gums or Gum Tissue. Synonyms: Gums, Gum TissueRelated Articles: Tips for Successful Holiday Eating with Braces or InvisalignGlossary: GingivitisGlossary: GumsOsteoporosis Drugs and Orthodontics« Back to Glossary IndexRelated Terms:Term: Alveolar BoneTerm: GingivaTerm: Gums