Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2014. Module: SNOMED CT core
Descriptions:
| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Requires orthodontic retainer | Is a | Equipment requirement | true | Inferred relationship | Some | ||
| Requires orthodontic retainer | Interprets | Equipment observable | true | Inferred relationship | Some | 1 | 
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Requires upper orthodontic retainer | Is a | True | Requires orthodontic retainer | Inferred relationship | Some | |
| Requires lower orthodontic retainer | Is a | True | Requires orthodontic retainer | Inferred relationship | Some | 
This concept is not in any reference sets