VERSACRYL LABORATORY KIT

Introduction

This unique add-on acrylic forms the basis of an innovative denture system, so versatile, it allows the dental professional to apply dozens of new ways to improve retention, esthetics and comfort for the dental patient.

VERSACRYL additions can be incorporated in the critical parts of any acrylic denture or partial denture, using different rigidities for different purposes. These areas of the appliance are created to soften in warm water and conform to the contours of soft tissues and teeth.

When inserted and adapted to the mouth, the VERSACRYL parts will cool to body temperature and take on the desired rigidity to fulfill their new function. This process can be repeated over and over at any time to ensure complete comfort for the patient.

METHOD

Different applications require different rigidities to function optimally at body temperature.

VERSACRYL has a broad range of consistencies that are pre-determined in the mixing stage. By varying the proportion of the two liquid monomers (Softener and Hardener) before adding the powder, the resulting acrylic can range from as hard as denture base to as soft as silicone, when heated, and every other consistency in between. After polymerization, all consistencies remain thermo-adjustable for the life of the denture.
To obtain the desired consistency the instructions specify the suggested ratio of the 2 liquids in number of drops, in. Careful measurement of the liquids is important and will also prevent waste of material (see directions for use).

VERSACRYL’s powder/liquid mixture is much thinner than that of conventional denture acrylic: 1,5 parts powder to 1 part liquid versus the conventional 3 to 1 ratio!

It is a cross-linked acrylic, guaranteed to create a perfect chemical bond with all other acrylics. The processing techniques accommodate Self Cure and Heat Cure and combinations of both (see ‘4 Popular Applications’).
It is noteworthy that no special equipment is required and once understood, this acrylic is easy to work with, never slumps, processes fast and has forgiving qualities (follow the instructions closely, until a “feel“ for the material has been developed).

In cases when VERSACRYL is used to function as retention into undercuts, it is necessary for the patient to warm the denture for about 10 seconds under hot running tap water before each insertion and soak with warm water in the mouth before each removal (see Patient Denture Care Brochure).

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DIRECTIONS FOR USE

Laboratory kit contents:
1– 60 ml bottle Softener Monomer Liquid
1– 60 ml bottle Hardener Monomer Liquid Heat Cure or Self Cure
1– 50 gm jar Polymer Powder, Pink Veined
1– 50 gm jar Polymer Powder, Clear
2 Measuring Cups
1 Eyedropper
Instructions

5 Easy Steps to create a Versacryl Application

1. Mix Softener and Hardener liquids in desired ratio, stir well
2. Slowly tap powder into liquid and vibrate the thin mixture while stirring gently
3. Apply Versacryl material to a monomer-primed surface
4. Cure as usual, heat cure or self cure
5. Trim, polish and either high shine or apply surface sealer


INSTRUCTIONS

Following is a suggested schedule to mix the two liquids, in order to obtain the rigidity required for the application (check the website for more details):

In a small mixing cup, add

In a small mixing cup:
1. add the amount of Softener drops indicated in the Softener column
2. add the amount of Hardener drops indicated in the Hardener column
3. stir both liquids together for about 10 seconds
4. from the polymer powder container, while stirring, add 1.5 parts of powder to 1 part liquid or until a thin creamy mixture is obtained (do not over-saturate with powder!).

For heat cure: wait until mixture is thick enough to knead and pack against monomer-primed acrylic immediately (see heat cure method)

For self cure: stir mixture while vibrating and quickly apply to existing monomer-primed acrylic (see self cure method).

The more Hardener liquid is used in the mixture, the more rigid the end result becomes. If the obtained rigidity is not satisfactory, the amount of drops can be modified, but always adjust the liquid with the highest amount of drops and keep notes in the blank column for your own adjustments.

HEAT CURE METHOD
Heat curing acrylic is always recommended over self-cure, for it produces a more stable and impervious result. VERSACRYL additions can be obtained by double-packing the denture flask:
1. pack denture flask with regular pink denture acrylic first
2. add a polyvinyl sheet and trial press
3. open flask and cut away areas to become mouldable
4. mix VERSACRYL acrylic following instructions above
5. pack mixture against monomer-primed denture acrylic
6. close flask, final press and process following denture base instructions


SELF CURE METHOD
Self cure VERSACRYL can replace all heat cure applications, but certain techniques are more favourable for practical reasons:

- replacing a broken buccal clasp with a Versacryl friction clasp
- adding the interproximal retention to an internal clasp or gasket clasp
(see Applications 2 and 3)
- adding thermo relines as an alternative to tissue conditioning
techniques (Reline Kit also available)
- attaching Versa-Lock sublingual wings to the lingual flange of a lower denture

Technique:
1. before applying Self Cure always trim away at least 1mm of existing acrylic
2. slope and sharpen the edges and roughen the surface
3. prime well with monomer, let dry and brush again
4. mix self cure VERSACRYL following enclosed instructions
5. apply the thin mixture quickly to all primed contact areas and shape with instrument or matrix (the mixture does not slump)
6. Cure in a pressure vessel for 15 min. at 25 psi., finish as usual


Surface Finish

Trimming and polishing VERSACRYL is not different from regular denture base acrylic, except more caution and cooling is recommended when treating softer applications.

After low shine polishing, two ways to finish the surface:
1. VERSACRYL can be high-shined after cooling in cold water or freezer, with a leather buff at a lower speed.
2. Apply a thin coat of surface Sealer to the dry surface. Air dry for 5 min. Apply a final coat and let dry thoroughly before handling. The sealer provides a two-way barrier.


Note: Patient management is the primary practitioner’s responsibility: it is up to the practitioner to instruct the patient and to delegate only those functions, deemed necessary for the well-being of the patient. (also see Patient Instructions)

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