Consultants’ Comments

• “Better dispensing than other similar cements.”
• “Nice delivery tip design – it reaches deep into the post space.”
• “No need to place cement onto the post!”
• “Long setting time.”
• “Make mixing and delivery tips available separately.”

Description

Flexi-Flow Auto and Flexi-Flow Auto E are self-curing resin cements indicated for use with prefabricated post systems. The cement is supplied in dual-barreled syringes with mixing tips and long, thin delivery tips. Flexi- Flow Auto is titanium-reinforced and available in a gray shade. Flexi-Flow Auto E esthetic cement is lanthanide-reinforced and available in shade A2. Both cements are radiopaque and contain fluoride. Neither of these Flexi- Flow cements should be used with self-cured bonding agents. Working time is three minutes, and setting time is five minutes after the start of mixing. Each kit contains two syringes with 4.5 g each of base and catalyst, 20 mixing tips and 20 delivery tips. Thirty consultants used and evaluated Flexi-Flow Auto and Flexi-Flow Auto E in over 200 post cementation procedures. This product received a 94% clinical rating.

Product Features

Flexi-Flow Auto and Flexi-Flow Auto E are easy to use with the automix feature. The delivery tips are outstanding for application of cement directly into the post space. Viscosity of the cement is very good – not too runny or too thick – and the flow into the canals is adequate. Working time is adequate, and the cement sets very hard in a reasonable amount of time. Some consultants indicated a desire for dual-cured capabilities for control of the setting time. Excess cement is easy to remove at the gel state. Because the material does not require a bonding agent, post cementation is accomplished simply and efficiently. Generally the esthetic shade was preferred. Eighty-eight percent of consultants rated Flexi-Flow Auto and Flexi-Flow Auto E to be equivalent to or better than the product they currently use to cement posts. Eighty-five percent would switch to Flexi-Flow Auto/Flexi-Flow Auto E and recommend the products to a colleague.

Clinical Tips

• Move delivery tip slowly out of canal to minimize air bubbles.
• For maximum depth of cement placement, use a lentulo spiral to spin cement to the apical end of the post space.
• Retention may be increased by etching or placing grooves in the post space.
• Do not use a bonding agent with this cement – it greatly accelerates the setting time.