| 主权项 |
1. A retainer system comprising:
a retainer having a body including a cavity and an opening, the opening permitting communication between the cavity and the outside of the retainer; and an insert having a pair of opposing walls connected by a bridging portion, the opposing walls including a distal end region and a distal end, a spacing being provided between the opposing walls, a cavity being at least partially defined by the opposing walls and the bridging portion, the insert includes an inner surface and an outer surface, the insert including a first inner protrusion, the first inner protrusion extending inwardly from the inner surface of a respective one of the opposing walls, the insert including a first outer protrusion and a second outer protrusion, the first outer protrusion extending outwardly from the outer surface of a respective one of the opposing walls, the second outer protrusion extending outwardly from the outer surface of the other one of the opposing walls, the bridging portion and a portion of the opposing walls being received in the cavity of the retainer, the first inner protrusion being located entirely within the cavity of the retainer, the first inner protrusion extending in a direction toward the bridging portion, the first inner protrusion being located closer to the bridging portion than the first outer protrusion and the second outer protrusion, the first and second outer protrusions being located entirely within the cavity of the retainer, the opposing walls extending continuously toward each other at least along the entire length from the bridging portion to at least one of the first outer protrusion or the second outer protrusion when the insert is received in the retainer, and the distal end region of the opposing walls passing through the opening and extending outside of the retainer. |
