| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Precocious exfoliation of teeth related to idiopathic root resorption | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Complicated tooth crown and root fracture | Finding site | True | Tooth root structure | Inferred relationship | Some | 3 | 
| Perforation of root canal wall due to endodontic procedure | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Root planing of tooth | Procedure site - Indirect | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Periodontal scaling and root planing, entire mouth | Procedure site - Indirect | False | Tooth root structure | Inferred relationship | Some | 2 | 
| Periodontal scaling and root planing, per quadrant | Procedure site - Indirect | False | Tooth root structure | Inferred relationship | Some | 2 | 
| Supernumerary root of tooth | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Periodontal and radicular surgery | Procedure site - Direct | True | Tooth root structure | Inferred relationship | Some | 2 | 
| Surgical repair of perforation of tooth root | Procedure site - Direct | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Resorption of root of tooth caused by orthodontic force | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Duplication of root of permanent tooth due to and following dental trauma | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Arrest of growth of root of tooth due to and following dental trauma | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Partial arrest of growth of root of tooth due to and following dental trauma | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Continued root development of immature permanent tooth following dental trauma | Finding site | True | Tooth root structure | Inferred relationship | Some | 2 | 
| Fracture of crown and root of immature permanent tooth following root canal treatment | Finding site | True | Tooth root structure | Inferred relationship | Some | 3 | 
| Fracture of root of immature permanent tooth following root canal treatment | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Scaling and root planing of all teeth | Procedure site - Indirect | True | Tooth root structure | Inferred relationship | Some | 2 | 
| Scaling of teeth with root planing in quadrant of dental arch | Procedure site - Indirect | True | Tooth root structure | Inferred relationship | Some | 2 | 
| Gingival flap procedure, including root planing, per quadrant | Procedure site - Indirect | True | Tooth root structure | Inferred relationship | Some | 2 | 
| Root planing of tooth | Procedure site | False | Tooth root structure | Inferred relationship | Some | 2 | 
| Pulpotomy - devitalising | Procedure site | False | Tooth root structure | Inferred relationship | Some |  | 
| Pulpotomy - non-vital disinfection | Procedure site | False | Tooth root structure | Inferred relationship | Some | 2 | 
| Root amputation, per root | Procedure site | False | Tooth root structure | Inferred relationship | Some |  | 
| Apicoectomy/periradicular surgery, anterior | Procedure site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Apicoectomy/periradicular surgery, molar | Procedure site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Apicoectomy/periradicular surgery, bicuspid | Procedure site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Root stunting | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Structure of root canal of tooth | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Structure of radicular pulp of tooth | Is a | False | Tooth root structure | Inferred relationship | Some |  | 
| Cementum structure | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Root planing of tooth | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Pulpotomy - devitalising | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Pulpotomy - non-vital disinfection | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Root amputation, per root | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Apicoectomy/periradicular surgery, anterior | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Apicoectomy/periradicular surgery, molar | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Apicoectomy/periradicular surgery, bicuspid | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Surgical removal of residual tooth roots | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Tooth extraction, root removal of exposed roots | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Surgical investigation of tooth root | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Tooth extraction, root removal of exposed roots | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Supernumerary roots | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Precocious exfoliation of teeth due to root resorption following trauma | Finding site | False | Tooth root structure | Inferred relationship | Some | 3 | 
| Primary dental caries, root surface origin | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Horizontal fracture of cervical third of root of tooth | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Surgical removal of residual tooth roots | Procedure site - Direct | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Horizontal fracture of middle third of root of tooth | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Horizontal fracture of tooth | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Cracked root | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Apicoectomy/periradicular surgery, molar | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Internal resorption of root of tooth | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Fracture of root of tooth at bifurcation | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Pulpotomy - devitalising | Procedure site - Direct | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Multirooted tooth with convergent roots | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Pulpotomy - non-vital disinfection | Procedure site - Direct | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Multirooted tooth with divergent roots | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Fracture of dental root | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Uncomplicated tooth crown and root fracture | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Complicated tooth crown and root fracture | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Vertical fracture of root of tooth | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Apicoectomy/periradicular surgery, anterior | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Pathologic resorption of root of tooth | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Multiple root fractures | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Apicoectomy/periradicular surgery, bicuspid | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Root amputation, per root | Procedure site - Direct | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Abnormal root proximity between adjacent teeth | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Tooth extraction, root removal of exposed roots | Procedure site - Direct | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Tooth root resection | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Excision of root of single-rooted tooth | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Excision of root of single-rooted tooth | Procedure site - Direct | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Tooth root resection | Procedure site - Direct | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Excision and retrograde filling of root of tooth | Procedure site - Direct | False | Tooth root structure | Inferred relationship | Some | 3 | 
| Excision and retrograde filling of root of tooth | Procedure site - Indirect | False | Tooth root structure | Inferred relationship | Some | 2 | 
| Excision and retrograde filling of root of tooth | Procedure site - Direct | True | Tooth root structure | Inferred relationship | Some | 3 | 
| Excision and retrograde filling of root of tooth | Procedure site - Indirect | True | Tooth root structure | Inferred relationship | Some | 2 | 
| Vestibular root angulation of tooth | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| External non-apical resorption of root of tooth | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Root angulation of tooth | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Idiopathic resorption of root of tooth | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Developmental anomaly of crown and root formation | Finding site | False | Tooth root structure | Inferred relationship | Some | 2 | 
| Multirooted tooth with divergent roots | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Multirooted tooth with convergent roots | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Abnormal root proximity between adjacent teeth | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Precocious exfoliation of teeth due to root resorption following trauma | Finding site | False | Tooth root structure | Inferred relationship | Some | 3 | 
| Primary dental caries, root surface origin | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Fracture of dental root | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Monostotic fibrous dysplasia of periradicular alveolar bone | Finding site | False | Tooth root structure | Inferred relationship | Some |  | 
| Cracked root | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Fracture of crown and root of tooth | Finding site | True | Tooth root structure | Inferred relationship | Some | 2 | 
| Horizontal fracture of tooth | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Horizontal fracture of middle third of root of tooth | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Horizontal fracture of cervical third of root of tooth | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Horizontal fracture of apical third of root of tooth | Finding site | False | Tooth root structure | Inferred relationship | Some | 2 | 
| Fracture of root of tooth at bifurcation | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Multiple root fractures | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Vertical fracture of root of tooth | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Abnormal root proximity between adjacent teeth | Finding site | False | Tooth root structure | Inferred relationship | Some | 2 | 
| Uncomplicated tooth crown and root fracture | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Complicated tooth crown and root fracture | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Convergent root proximity | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Root caries | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 |