| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Fit fixed functional orthodontic appliance | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Insertion of component of fixed orthodontic appliance | Is a | False | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Fitting of fixed orthodontic retainer | Is a | False | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Adjust fixed orthodontic appliance | Is a | False | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Repair of fixed orthodontic appliance component | Is a | False | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Comprehensive orthodontic treatment, permanent dentition, for class I malocclusion | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Comprehensive orthodontic treatment, permanent dentition, for class III malocclusion | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Comprehensive orthodontic treatment, transitional dentition, for class III malocclusion | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Comprehensive orthodontic treatment, transitional dentition, for class II malocclusion | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Comprehensive orthodontic treatment, permanent dentition, for class II malocclusion | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Comprehensive orthodontic treatment, transitional dentition, for class I malocclusion | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Fixed appliance therapy for tooth guidance | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Fixed appliance therapy for interceptive orthodontic treatment | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Fixed appliance therapy for control of harmful habit | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Adjust orthodontic archwire | Is a | False | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Replacement of orthodontic archwire | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Reposition orthodontic bracket | Is a | False | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Adjust palatal arch | Is a | False | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Adjust lingual arch | Is a | False | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Adjust rapid maxillary expansion appliance | Is a | False | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Adjust fixed functional appliance | Is a | False | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Placement of orthodontic lingual arch | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Placement of orthodontic palatal arch | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Placement of fixed rapid maxillary expansion appliance | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Fitting of complete fixed orthodontic appliance | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  | 
| Insertion of fixed orthodontic appliance | Is a | True | Fixed appliance therapy | Inferred relationship | Existential restriction modifier |  |