| Relationships | Role | Relationship Start | Relationship End |
| Principal Holding Company, Llc | Parent | 7/21/2011 | 12/31/2013 |
| Employers Dental Services, Inc. | Subsidary | 7/21/2011 | 12/31/2013 |
| Relationships | Role | Relationship Start | Relationship End |
| Principal Holding Company, Llc | Parent | 7/21/2011 | 12/31/2013 |
| Employers Dental Services, Inc. | Subsidary | 7/21/2011 | 12/31/2013 |