| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Part of root of tooth | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Tooth root surface | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Entire tooth root | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Single tooth root | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Buccal tooth root | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Palatal tooth root | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Lingual tooth root | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Mesiobuccal tooth root | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Distobuccal tooth root | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Mesial tooth root | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Distal tooth root | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Tooth root bifurcation | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| Tooth root trifurcation | Is a | False | Tooth root structure | Inferred relationship | Some |  | 
| Developmental groove of root | Is a | True | Tooth root structure | Inferred relationship | Some |  | 
| 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 |  | 
| 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 (disorder) | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Precocious exfoliation of teeth due to root resorption following trauma (disorder) | 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 | 
| 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 | 
| övertaliga rötter | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Cementoclasia | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Surgical removal of residual tooth roots | Procedure site | False | Tooth root structure | Inferred relationship | Some | 2 | 
| Internal resorption of root of tooth | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Tooth extraction, root removal of exposed roots | Procedure site | False | Tooth root structure | Inferred relationship | Some | 2 | 
| Retained dental root | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Dental root sensitivity | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Pathologic resorption of root of tooth | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Root planing of tooth | Procedure site | False | Tooth root structure | Inferred relationship | Some | 2 | 
| Pulpotomy - devitalizing | 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 |  | 
| apikoektomi eller periradikulär kirurgisk åtgärd, främre | Procedure site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| apikoektomi eller periradikulär kirurgisk åtgärd, molar | Procedure site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| apikoektomi eller periradikulär kirurgisk åtgärd, bikuspid | Procedure site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Root stunting (disorder) | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Root planing of tooth | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Pulpotomy - devitalizing | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Pulpotomy - non-vital disinfection | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Root amputation, per root | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| apikoektomi eller periradikulär kirurgisk åtgärd, främre | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| apikoektomi eller periradikulär kirurgisk åtgärd, molar | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| apikoektomi eller periradikulär kirurgisk åtgärd, bikuspid | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Surgical removal of residual tooth roots | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Tooth extraction, root removal of exposed roots | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Surgical investigation of tooth root | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Tooth extraction, root removal of exposed roots | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| övertaliga rötter | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Precocious exfoliation of teeth due to root resorption following trauma (disorder) | 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 (attribute) | 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 | 
| apikoektomi eller periradikulär kirurgisk åtgärd, molar | Procedure site - Direct (attribute) | 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 - devitalizing | Procedure site - Direct (attribute) | 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 (attribute) | 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 | 
| apikoektomi eller periradikulär kirurgisk åtgärd, främre | Procedure site - Direct (attribute) | 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 | 
| apikoektomi eller periradikulär kirurgisk åtgärd, bikuspid | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Root amputation, per root | Procedure site - Direct (attribute) | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Abnormal root proximity between adjacent teeth (disorder) | Finding site | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Tooth extraction, root removal of exposed roots | Procedure site - Direct (attribute) | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Tooth root resection | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Excision of root of single-rooted tooth (procedure) | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 1 | 
| Excision of root of single-rooted tooth (procedure) | Procedure site - Direct (attribute) | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Tooth root resection | Procedure site - Direct (attribute) | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Excision and retrograde filling of root of tooth (procedure) | Procedure site - Direct (attribute) | False | Tooth root structure | Inferred relationship | Some | 3 | 
| Excision and retrograde filling of root of tooth (procedure) | Procedure site - Indirect (attribute) | False | Tooth root structure | Inferred relationship | Some | 2 | 
| Excision and retrograde filling of root of tooth (procedure) | Procedure site - Direct (attribute) | True | Tooth root structure | Inferred relationship | Some | 3 | 
| Excision and retrograde filling of root of tooth (procedure) | Procedure site - Indirect (attribute) | 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 (disorder) | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 | 
| Idiopathic resorption of root of tooth (disorder) | Finding site | True | Tooth root structure | Inferred relationship | Some | 1 |