October 26, 2019 By Lynn Schneider; Editor, ArchWired.com The term Root refers to the lower two-thirds of a tooth that sits below the Gum line. The Root a tooth is buried in the Socket in the jaw bone, where it anchors the tooth into its position. Related Articles: Glossary: Root ResorptionGlossary: Dental AlveoliGlossary: ApexGlossary: Cementum« Back to Glossary IndexRelated Terms:Term: Dental AlveoliTerm: Alveolar BoneTerm: Gums