Flexite is recommended for use as removable partial dentures in place of traditional acrylic saddles on cast metal partials, flippers or stayplates. Flexite and similar flexible products are tissue borne appliances when not used with cast metal partials. Rest seats in are not recommended. Flexite and our other flexible products eliminate the need for invasive procedures.
Flexite should not be used with patients with poor oral hygiene, very short or heavily worn lower anteriors, over a closed vertical dimension or protruding tori. When there is minimal undercut on abutment teeth, metal clasp will be recommended.
Start with an accurate bite registration and void-free impression using a custom tray.
Flexite Insertion Techniques
After unpacking the case and immediately prior to insertion in the patient’s mouth, immerse the case in very hot tap water. Leave the case in the water for about one minute. Remove the case from the water and allow it to cool just to the point where the patient will tolerate it. Gently insert the appliance into the mouth.
The hot water treatment permits a smooth initial insertion and a good adaptation with the natural tissues in the mouth. If the patient senses any discomfort because of the tightness of a clasp, the clasp may be loosened slightly by immersing that area of the partial in hot water and bending the clasp outward. If a clasp requires tightening, the clasp area may be immersed in hot water and bent inward to tighten.
If any reduction is needed due to persistent irritation, the resin must be handled differently than acrylic. It is essential to use a fairly coarse grinding wheel or a parallel cut steel bur (vulcanite bur) for overall reduction. The resin will melt if there is prolonged contact with a bur or wheel; therefore it is essential to move the instrument over the surface continuously.
Minor relief can be made with a rubber wheel or vulcanite bur. If there are any threads remaining, these can be removed with a sharp blade. Any roughness on the surface can be smoothed with a brown rubber wheel.
Unlike Valplast, repairing and rebasing can be done chairside. Use Flexite to repair or apply conventional acrylic to non-flexing areas using a bonding agent. Use of conventional acrylic in repairs will result in the loss of some of the appliance's flexion.