Moveable Lingual VERSACRYL Flanges on a Lower Denture

The denture is constructed with conventional pink denture acrylic and instead of avoiding the undercuts, using VERSACRYL, the lingual flanges can be extended all the way down into the submandibular fossa.

To insert the denture, the patient soaks the flanges in hot water for 20 seconds and gently opens them away from the undercuts, then quickly places the denture in the mouth and with both index fingers, pushes the flanges back into the submandibular fossa. The lower denture is now mechanically locked in place. To remove, the patient rinses with warm water around the flanges to soften them, then gently lifts the denture out of position.

Note: Following the same principle, any significant tissue undercut can be engineered to be beneficial. Typically, large upper tuberosities or cuspid areas may have such undercuts. Changing the VERSACRYL rigidity (liquid proportion), the distance of leverage and the thickness of the extension may be necessary for each individual case.

Thermo- adjustable lower VERSACRYL flange locks into undercut.

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