| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Hemodynamic-modulation vessel repair implant, intracranial/carotid, polymer-metal | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metallic acetabular liner | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Ligation clip, metallic | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Denture clasp, metal, custom-made | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metallic orthopedic cement restrictor | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metallic femoral head prosthesis | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metallic suture | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Orthodontic band, metal | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Orthodontic clasp, metal, custom-made | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal hook | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal framework | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal sound | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Dental bone matrix implant, metallic | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Surgical stainless steel suture, multifilament | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Surgical stainless steel suture, monofilament | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal dental bridge with polymer coating | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal dental crown with ceramic coating | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal dental crown with polymer coating | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Dental crown, metal | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal mesh | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metallic cloth | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metallic spinal fusion cage, non-sterile | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal periosteal implant, device | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Orthodontic clasp, metal, preformed | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Orthodontic clasp, metal wire, custom-made | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Ceramic-on-metal total hip prosthesis | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Denture clasp, metal, preformed | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| General-purpose caliper, metallic | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal dental bridge with ceramic coating | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Intrauterine device, metal-covered | Has coating material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal-on-polyethylene total hip prosthesis | Has coating material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal-backed elbow ulna prosthesis | Has coating material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal-backed patella prosthesis | Has coating material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal-on-metal total hip prosthesis | Has coating material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Titanium suture, multifilament | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Titanium suture, monofilament | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Full gold crown | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal on polymer composite spinal fusion cage | Has coating material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Custom-made metallic osteotomy fusion cage | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Bioabsorbable metal and polymer biliary stent | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Endovascular stent graft | Has compositional material | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Aortic arch endovascular stent-graft | Has compositional material | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Aortic endovascular stent graft | Has compositional material | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Abdominal aorta endovascular stent-graft | Has compositional material | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Peripheral venous endovascular stent-graft | Has compositional material | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Aortic arch endovascular stent-graft extender | Has compositional material | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Arteriovenous fistula endovascular stent-graft | Has compositional material | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Aortic arch branch vessel endovascular stent-graft | Has compositional material | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Aortic endovascular stent-graft extender | Has compositional material | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Descending thoracic or abdominal aorta branch vessel endovascular stent-graft | Has compositional material | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal and polymer dental and/or maxillofacial surgical mesh | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal dental and/or maxillofacial surgical mesh | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Peripheral venous metal stent graft | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Venous metal stent graft | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal arterial stent | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metal venous stent | Has compositional material | True | Metal | Inferred relationship | Existential restriction modifier |  | 
| Rust ring of left cornea caused by metallic foreign body | Causative agent | True | Metal | Inferred relationship | Existential restriction modifier | 1 | 
| Rust ring of right cornea caused by metallic foreign body | Causative agent | True | Metal | Inferred relationship | Existential restriction modifier | 1 | 
| Corneal rust ring | Causative agent | True | Metal | Inferred relationship | Existential restriction modifier | 1 | 
| [X]Toxic effect of other metals | Causative agent | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Allergy to stainless steel | Causative agent | False | Metal | Inferred relationship | Existential restriction modifier | 1 | 
| Other metals causing toxic effect | Causative agent | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Other metals causing toxic effect OS | Causative agent | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Other metals causing toxic effect NOS | Causative agent | False | Metal | Inferred relationship | Existential restriction modifier |  | 
| Metals causing toxic effect NOS | Causative agent | False | Metal | Inferred relationship | Existential restriction modifier |  |