All-plastic burnout pattern compatible with the regular diameter conical abutment used on the Keystone (Lifecore) Restore implant system. Produced to the referenced system's original prosthetic specifications.

This seats on the abutment, not on the implant. The conical abutment is already screwed into the implant; this coping goes over it and the technician waxes and casts the superstructure on top. It will not seat on a bare implant platform. Where the restoration is being built directly on the implant, the part needed is an implant-level castable abutment — see the Restore regular diameter plastic sleeve (T-4PS-LC).  

Hexed and non-hexed. Hexed indexes to the abutment's anti-rotational feature and is used for single units. Non-hexed is rotational, which is what allows two or more copings to seat on a common path of insertion — the normal choice for splinted bridges and bars over conical abutments, since achieving passive seating across several abutments requires rotational freedom at each.  

Regular diameter, and the diameter refers to the abutment. Keystone Restore conical abutments are supplied in regular and wide diameters, and the copings are not interchangeable between them — see LC-5CPS for the wide diameter. Read the diameter off the abutment reference rather than inferring it from the implant, since the same implant can carry either.  

Restore is a discontinued system. Keystone Dental's Restore line is no longer manufactured, and original prosthetic components are difficult to source. Where a case has to be restored or a bridge remade over conical abutments already in the mouth, a castable coping is frequently the only remaining route — the geometry is reproduced and the technician casts whatever the case requires.  

The retaining screw seats into the abutment. It is not an implant-level screw and the two are not interchangeable. An implant abutment screw will not retain this coping.  

Casting. Supplied as a sacrificial pattern formulated to burn out under a standard investment casting cycle. Follow your investment manufacturer's recommended burnout schedule — complete elimination of the pattern depends on reaching and holding the specified temperature. The finished restoration is the cast metal; this component does not remain in service.  

Verify on the analog before wax-up. Seat the coping on the conical abutment or its analog and confirm full seating before adding wax. A molded plastic connection carries greater tolerance than a machined metal one, and on a multi-unit case the fit should be verified at every unit rather than assumed from one.  

Grade 23 ELI titanium (Ti-6Al-4V, ASTM F136) retaining screw included.  

Other Keystone (Lifecore) Restore components. Wide diameter conical abutment coping (LC-5CPS) · regular diameter standard abutment coping (T-4SAPS-LC) · regular diameter plastic sleeve (T-4PS-LC) · small diameter plastic sleeve (LC-33PS) · wide diameter plastic sleeve (LC-5PS).

Manufactured in Bergenfield, New Jersey. SKU LC-4CPS.