SpiraPostPFS in detail

Unique design minimizes removal of tooth structure. 

Due to its unique, flexible design, Spirapost is able to adapt to the curvature and irregularities of the canal, permitting an ultra-conservative post space preparation and eliminating the need to make the canal fit the post. By preserving more tooth structure, you end up
with a stronger tooth – a critical factor in the long-term success of any restoration.

A structurally strong restorative system.

Spirapost consists of surgical stainless steel wires twisted around biocompatible natural color polyfiber strands.

The polyfiber strands work similarly to rebar-type construction in the building industry. The resin cement (within the canal) and composite core material integrate with the strands, creating a homogenous unit that effectively and safely adds reinforcement and structural integrity to the final restoration. It does not hold memory, so there is no concern for undue stresses within the canal. 

This strong structure facilitates the safe absorption and distribution of external forces and virtually eliminates the risk of failure due to flexibility discrepancies between the post and restorative material.

Spirapost provides the ideal angle for superior support. 

Spirapost is self-centering within the canal and, once the post cement has been cured, the coronal portion of Spirapost can be angled so that it is vertical to the central axis of the tooth. This helps distribute stresses evenly and provides the maximum amount of support for the restoration.

* U.S. Patent #6,793,493