Merge pull request #3107 from obophenotype/#3101-NTR-tooth-root-apica…

…l-papilla

add new term 'tooth root apical papilla'

src/ontology/uberon-edit.obo

@@ -223886,6 +223886,18 @@ intersection_of: part_of UBERON:0000310 ! breast
 relationship: dc-contributor https://orcid.org/0000-0002-0819-0473 ! Paula Duek Roggli
 property_value: dcterms-date "2022-08-29T14:03:54Z" xsd:dateTime
 
+[Term]
+id: UBERON:8480031
+name: tooth root apical papilla
+def: "The portion of the dental papilla located at the apex of the root of developing permanent tooth that is responsible for the progressive elongation and maturation of the root tooth." [PMID:18498881, PMID:34026757]
+synonym: "apical papilla" EXACT [PMID:18215674]
+synonym: "apical papilla of immature permanent teeth" EXACT [PMID:30834270]
+is_a: UBERON:0000479 ! tissue
+relationship: adjacent_to UBERON:0003677 ! tooth root
+relationship: dc-contributor https://orcid.org/0000-0002-0819-0473 ! Paula Duek Roggli
+property_value: dcterms-date "2023-11-02T07:48:12Z" xsd:dateTime
+property_value: editor_note "The surface layer is formed by a dense collagen matrix with perpendicular aligned collagen fibers. The inner layer consists of a loosely disorganized collagen matrix with a high concentration of mesenchymal stem cells. Fully mature roots lack apical papilla." xsd:string {xref="PMID:18498881", xref="PMID:34026757"}
+
 [Term]
 id: UBERON:8480033
 name: interlobular stroma of mammary gland