| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Structure of buccal distal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of four tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial occlusal distal buccal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial occlusal distal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial occlusal distal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial occlusal buccal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial occlusal buccal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of distal occlusal buccal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of distal occlusal buccal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial buccal distal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial buccal distal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of five tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial occlusal distal buccal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial occlusal distal buccal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of tooth ridge | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of marginal ridge of tooth | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of oblique ridge of tooth | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of transverse marginal ridge of tooth | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of tooth fissure | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of occlusal fissure | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of palatal fissure | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of buccal fissure | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Entire amelocemental junction of tooth | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial marginal ridge of tooth | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of distal marginal ridge of tooth | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of buccal occlusal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of buccal occlusal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of buccal incisal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of incisal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of incisal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of buccal incisal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of buccal incisal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Supernumerary deciduous tooth | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of distal incisal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of distal incisal buccal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of distal incisal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial incisal buccal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial incisal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial incisal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of distal incisal buccal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of distal incisal buccal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial incisal distal buccal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial incisal distal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial incisal distal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial incisal distal buccal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial incisal distal buccal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial incisal buccal lingual tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of mesial incisal buccal palatal tooth surfaces | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of deciduous premolar tooth | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Structure of interproximal surface of tooth | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| All deciduous teeth | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Tooth part | Part of | False | Entire tooth | Additional relationship | Existential restriction modifier |  | 
| Entire permanent tooth | Is a | True | Entire tooth | Inferred relationship | Existential restriction modifier |  | 
| Entire mandibular tooth | Is a | True | Entire tooth | Inferred relationship | Existential restriction modifier |  | 
| Entire canine tooth | Is a | True | Entire tooth | Inferred relationship | Existential restriction modifier |  | 
| Entire maxillary tooth | Is a | True | Entire tooth | Inferred relationship | Existential restriction modifier |  | 
| Entire incisor tooth | Is a | True | Entire tooth | Inferred relationship | Existential restriction modifier |  | 
| Entire molar tooth | Is a | True | Entire tooth | Inferred relationship | Existential restriction modifier |  | 
| Entire deciduous tooth | Is a | True | Entire tooth | Inferred relationship | Existential restriction modifier |  | 
| Entire premolar tooth | Is a | True | Entire tooth | Inferred relationship | Existential restriction modifier |  | 
| Whole tooth specimen | Specimen source topography | True | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital hypodontia, multiple teeth, related to systemic disease | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital hypodontia, multiple teeth, related to systemic disease | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 2 | 
| Familial hypodontia | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| Familial hypodontia | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 2 | 
| Hypodontia and nail dysgenesis | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| Hypodontia and nail dysgenesis | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital hypodontia, multiple teeth, unrelated to systemic disease | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| Partial congenital absence of teeth | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| Partial congenital absence of teeth | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital hypodontia, multiple teeth, unrelated to systemic disease | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 2 | 
| Deafness and oligodontia syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 3 | 
| Deafness and oligodontia syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 4 | 
| Complete avulsion of tooth | Finding site | True | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| Taurodontia with absent teeth and sparse hair syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 6 | 
| Taurodontia with absent teeth and sparse hair syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 7 | 
| Hypomyelination, hypogonadotropic hypogonadism, hypodontia syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 5 | 
| Hypomyelination, hypogonadotropic hypogonadism, hypodontia syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 7 | 
| Odontoleukodystrophy | Finding site | True | Entire tooth | Inferred relationship | Existential restriction modifier | 2 | 
| Taurodontia with absent teeth and sparse hair syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| Taurodontia with absent teeth and sparse hair syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 3 | 
| Deafness and oligodontia syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 2 | 
| Deafness and oligodontia syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| Hypomyelination, hypogonadotropic hypogonadism, hypodontia syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| Spondyloepimetaphyseal dysplasia, abnormal dentition syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 3 | 
| Spondyloepimetaphyseal dysplasia, abnormal dentition syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 2 | 
| Oligodontia and cancer predisposition syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 2 | 
| Oligodontia and cancer predisposition syndrome | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| Oligodontia | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 2 | 
| Oligodontia | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| Completely impacted tooth in bone | Finding site | True | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| Completely impacted tooth in bone | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 3 | 
| Epidermolysis bullosa simplex with hypodontia | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 2 | 
| Epidermolysis bullosa simplex with hypodontia | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 3 | 
| X-linked hypodontia | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| X-linked hypodontia | Finding site | False | Entire tooth | Inferred relationship | Existential restriction modifier | 2 | 
| X-linked oligodontia | Finding site | True | Entire tooth | Inferred relationship | Existential restriction modifier | 1 | 
| X-linked oligodontia | Finding site | True | Entire tooth | Inferred relationship | Existential restriction modifier | 2 | 
| [SO]Tooth NEC | Is a | False | Entire tooth | Inferred relationship | Existential restriction modifier |  |