{
  "id": 4339,
  "label": "tooth hard tissue disease",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0002220",
  "properties": {
    "xrefs": [
      "DOID:214",
      "ICD10CM:K03",
      "ICD9:521.8",
      "ICD9:521.89",
      "MEDGEN:510140",
      "SCTID:46557008",
      "UMLS:C0155926"
    ],
    "synonyms": [
      "disorder of hard tissues of teeth",
      "teeth hard tissue disease",
      "teeth hard tissue diseases"
    ],
    "categories": [
      {
        "ref": "MONDO:0002081",
        "name": "musculoskeletal system disorder"
      },
      {
        "ref": "MONDO:0006858",
        "name": "mouth disorder"
      }
    ]
  },
  "isLeaf": false,
  "isRoot": false,
  "child_count": 7,
  "parents": [
    {
      "id": 8422,
      "label": "tooth disorder",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        6893,
        8301
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:1091",
          "EFO:1001216",
          "MEDGEN:11852",
          "MESH:D014076",
          "NCIT:C35077",
          "SCTID:234947003",
          "UMLS:C0040435"
        ],
        "synonyms": [
          "calcareous tooth disease",
          "calcareous tooth disease or disorder",
          "dental disorder",
          "disease of calcareous tooth",
          "disease or disorder of calcareous tooth",
          "disorder of calcareous tooth",
          "tooth disorder"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0006858",
            "name": "mouth disorder"
          }
        ],
        "definition": "A disease involving the calcareous tooth."
      },
      "child_count": 22,
      "reference_id": "MONDO:0006999"
    }
  ],
  "children": [
    {
      "id": 3863,
      "label": "tooth resorption",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4339
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:13240",
          "ICD9:521.4",
          "MEDGEN:21587",
          "MESH:D014091",
          "SCTID:70931000",
          "UMLS:C0040451"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0006858",
            "name": "mouth disorder"
          }
        ],
        "definition": "Resorption of calcified dental tissue, involving demineralization due to reversal of the cation exchange and lacunar resorption by osteoclasts. There are two types: external (as a result of tooth pathology) and internal (apparently initiated by a peculiar inflammatory hyperplasia of the pulp). (From Jablonski, Dictionary of Dentistry, 1992, p676)"
      },
      "child_count": 3,
      "reference_id": "MONDO:0001670"
    },
    {
      "id": 5879,
      "label": "dental enamel hypoplasia",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4339
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:693",
          "EFO:1001304",
          "MEDGEN:3730",
          "MESH:D003744",
          "NCIT:C34529",
          "SCTID:26597004",
          "UMLS:C0011351"
        ],
        "synonyms": [
          "enamel hypoplasia"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0006858",
            "name": "mouth disorder"
          }
        ],
        "definition": "Deficiency in the enamel tissue that results in the formation of grooves, pits, or dents on the surface of the affected teeth."
      },
      "child_count": 1,
      "reference_id": "MONDO:0004038"
    },
    {
      "id": 5900,
      "label": "dentin sensitivity",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        4339
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:698",
          "MEDGEN:41477",
          "MESH:D003807",
          "SCTID:13468005",
          "UMLS:C0011432"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0006858",
            "name": "mouth disorder"
          }
        ],
        "definition": "Pain or discomfort caused by exposure of the dentin layer of tooth to thermal, tactile, or other stimuli."
      },
      "child_count": 0,
      "reference_id": "MONDO:0004059"
    },
    {
      "id": 6972,
      "label": "dental caries",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4339
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:216",
          "EFO:0003819",
          "ICD10CM:K02",
          "ICD10WHO:K02",
          "ICD9:521.0",
          "ICD9:521.00",
          "ICD9:521.06",
          "ICD9:521.07",
          "MEDGEN:8288",
          "MESH:D003731",
          "SCTID:80967001",
          "UMLS:C0011334",
          "icd11.foundation:1983306720"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0006858",
            "name": "mouth disorder"
          }
        ],
        "definition": "The decay of a tooth, in which it becomes softened, discolored, and/or porous."
      },
      "child_count": 5,
      "reference_id": "MONDO:0005276"
    },
    {
      "id": 8238,
      "label": "hypercementosis",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        4339
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:12733",
          "EFO:1000970",
          "ICD10CM:K03.4",
          "ICD9:521.5",
          "MEDGEN:9360",
          "MESH:D006936",
          "MedDRA:10020596",
          "SCTID:78537008",
          "UMLS:C0020441"
        ],
        "synonyms": [
          "cementation hyperplasia"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0006858",
            "name": "mouth disorder"
          }
        ],
        "definition": "A regressive change of teeth characterized by excessive development of secondary cementum on the tooth surface. It may occur on any part of the root, but the apical two-thirds are most commonly affected. (Dorland, 27th ed)"
      },
      "child_count": 0,
      "reference_id": "MONDO:0006790"
    },
    {
      "id": 9333,
      "label": "tooth ankylosis",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        4339,
        4373,
        5714
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:12661",
          "GARD:0000701",
          "ICD10CM:K03.5",
          "ICD9:521.6",
          "MEDGEN:57843",
          "MESH:D020254",
          "MedDRA:10044019",
          "OMIM:157950",
          "Orphanet:1077",
          "SCTID:14901003",
          "UMLS:C0155930",
          "icd11.foundation:2066427602"
        ],
        "synonyms": [
          "ankylosis (disease) of calcareous tooth",
          "ankylosis of teeth",
          "ankylosis of tooth",
          "calcareous tooth ankylosis (disease)",
          "abnormal fusion of dental cementum with alveolar bone",
          "dental ankylosis",
          "molar 1 reinclusion",
          "molar I reinclusion",
          "permanent molars, secondary retention OF",
          "secondary retention of permanent molars"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0006858",
            "name": "mouth disorder"
          }
        ],
        "definition": "Dental ankylosis is a rare disorder characterized by the fusion of the tooth to the bone, preventing both eruption and orthodontic movement."
      },
      "child_count": 0,
      "reference_id": "MONDO:0008007"
    },
    {
      "id": 16407,
      "label": "dentin dysplasia",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        4339
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:701",
          "GARD:0016575",
          "ICD9:520.5",
          "MEDGEN:8310",
          "MESH:D003805",
          "Orphanet:1653",
          "SCTID:109492001",
          "UMLS:C0011430",
          "icd11.foundation:1262020657"
        ],
        "synonyms": [
          "DD"
        ],
        "categories": [
          {
            "ref": "MONDO:0002081",
            "name": "musculoskeletal system disorder"
          },
          {
            "ref": "MONDO:0006858",
            "name": "mouth disorder"
          }
        ],
        "definition": "Dentin dysplasia (DD) is a rare disorder belonging to the group of hereditary dentin defects and is characterized by abnormal dentin structure and root development resulting in abnormal tooth development. It encompasses two subtypes: DD type I and DD type II."
      },
      "child_count": 2,
      "reference_id": "MONDO:0015613"
    }
  ],
  "roots": [
    {
      "id": 8422,
      "label": "tooth disorder"
    }
  ]
}