The TALLADIUM SYSTEM comes with a press ( a stand maybe provided with bolts & screws to ensure stability during operation ) and a furnace that should have a separate line for an even current flow to provide uniform heating of the FLEXIDENT resin materials.

With the FLEXIDENT flexible partials, a mucostatic impression is required. The resin material is in a constant relaxed position; therefore, in the fabrication of such flexible partials, consideration on tissue retention is important.

Before starting, a cast model should be carefully studied. The right degree of flexibility of FLEXIDENT resin materials allows designs that use tissue undercuts as well as portion of the abutment teeth for retention. Planning which clasp type to use would depend on the position. With anterior position, esthetics is important, therefore, consider minimal coverage of the teeth. With posterior position, clasps should provide utmost support and stability of the partials.

BASIC TYPE OF CLASPS

Include:

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WRAP AROUND SPUR ANCHOR

I. DESIGNING THE MASTER MODEL As always, make full use of tissue undercuts for retention. It is recommended that red pencil is used during designing on the master model.

II. PREPARING THE MASTER MODEL FOR DUPLICATION

Do not over-relieve nor over-block. The only time surveying may be required is to create parallelism for a clear path of insertion for interproximal saddles, removing mesial and distal undercuts. However, when left and right interproximal saddles are to be replaced, there wont be any need to create parallelism because the degree of flexibility of the FLEXIDENT material allows the partial to be twisted slightly during insertion.

All undercuts that will affect the path of insertion should be blocked. However, undercuts, often on buccal and distal, should not be blocked, as these will be utilized for retention.

It is important to remember that there is no need to relieve with wax the necklines of the tissue except when there is indication of some abnormal recession or some pocket formation. If necklines are healthy, no relief with wax is necessary.

For free-end cases, be it upper or lower, it is not necessary to remove the distal undercut of the last natural tooth. For free-end saddle cases with anterior teeth replacements, undercuts in the front section should be blocked with wax. Always leave distal undercuts for retention.

III. DUPLICATING THE MASTER MODEL

Use Talladiums Synthetic Die Stone: For partial, use the synthetic die stone with 0.05% expansion For full denture, use Talladium synthetic FD die stone for better fit.

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IV. SET-UP

The normal method of set-up is followed except when a tooth is to be replaced beside a tooth that will have a spur clasp. Here, one must allow a little more space at the neckline so that the resin material will have some reinforcement from the lingual to the spur.

Mechanical retention of pontics ( acrylic type is preferred as this follows the principle of non-breakage ) is achieved using retention burs.

V. WAXING

With FLEXIDENT flexible partials cases, there is thinner wax-up compared to conventional acrylic partials. Thickness needed should just be enough to provide support especially at critical junctions and connectors. FLEXIDENT flexible partials are unbreakable with proper design and with proper processing. There should not be any bulky flanges.

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Recommended thickness of the wax pattern: 1. Palatal thickness: 1.25 - 1.5 mm 2. Buccal & Labial Flange: 1.25 - 2.0 mm 3. Clasps: 1.0 - 1.5 mm ( Always uniform with flange and junction ) 4. Lingual Flange: 1.25 - 2.00 mm 5. Lingual Major Connector [Mandibular] : 1.75 - 2 mm VI. INVESTING THE TOP HALF OF THE FLASK VII. SPRUING

After investment has set, put a single sprue approximately 9mm in diameter at the posterior lingual region as shown on picture below.

Apply thin layers of tinfoil substitute on the entire stone surface

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VIII. INVESTING THE TOP HALF OF THE FLASK

It is necessary to point out that one should use the proper tinfoil substitute to cover the surface of the stone in the bottom half of the flask. And always let the Talladium tinfoil substitute dry completely. DO NOT OVER TIGHTEN THE SCREWS.

IX. BOILING OUT

This is also a normal procedure done on making removable partial dentures wherein after the stone has set, the flask is placed in a hot water bath for 6 to 10 minutes. When the two halves of the flask have been opened, wash out the wax to make sure all residues are eliminated.

Apply thin layers of CLEANSEP (FLEXIDENTS separating medium) on the stone surface and WARM these two halves of the flask in a warmer at 60-80-degrees Centigrade at MAXIMUM of 4 to 5 minutes.

When the stone with cleansep has dried completely after maximum of 4 to 5 minutes in the warmer, remove and close the two halves of the flask, tighten the bolts securely, in prepare for the next step, INJECTING.

80 degrees centigrade

at MAXIMUM of 8 to 9 minutes 5

X. INJECTING THE FLEXIDENT.

Set the furnace to approximately 460 degrees Fahrenheit.

Spray with the provided Flexident mold release the inside and outside of the cylinder provided. It is important to take note that cylinder should always be allowed to warm up in between cycles, for at least 10 minutes before resin materials in tubes are placed inside the cylinder for melting.

Spray the tube containing resin materials with Flexident mold release spray before inserting into the furnace with the crimped side first.

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460 F (approximate

237.78 C temp)

Then spray a brass disc with the FLEXIDENT mold release spray provided, before inserting the disc into the cylinder against the end of the tube containing the resin materials. Let the resin material melt (plasticize) in the furnace, for approximately:

9:00 minutes for small-sized tubes (8-9 grams)

11:00 minutes for medium-sized tubes (16-17 grams)

13:00 minutes for large-sized tubes (25-25.5 grams)

Then push lever forward to inject. After 3 minutes, pull lever back and remove the flask and cylinder from the presser.

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Separate flask and the cylinder with a slight twisting motion. It is important to remember that the cylinder must be pre-heated for 10 minutes BEFORE the next injection. (for in-between- cycles).

XI. KNOCK-OUT PUNCHING OF THE TUBE FROM CYLINDER

XII. OPENING THE FLASK

After removing the cylinder, remove the flask carefully as it can still be slightly hot. It is recommended that the operator wear rubber gloves when handling the slightly hot flask.

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XIII. FINISHING AND POLISHING

After cutting off the sprue with a cut-off wheel or cutter do as much pre-finishing and over-all reduction of the palatal area and lingual connector while the case is still on the duplicate model. Then, lift the case with a flat hand instrument.

Trim the edges of the case with the Carbide bur, then With smooth with abrasive silicon rubber in one direction.

Once the sprue is reduced, lift the case of the model with the knife provided or other flat instrument. Clean the tissue surface with a small stiff bristle brush.

As with any denture fabrication, it is always good to remember that festooning the anatomical works be done during waxing and set-up to avoid too much grinding during the finishing and polishing stages.

For polishing, start by applying special pumice with a wet rag wheel. Then, apply the Tripoli brown compound with a dry rag wheel to produce a smooth but dull-looking finish. During the Tripoli brown compound application, constantly wet the case with water to avoid excessive build-up of heat on the surface of the case.

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Next, remove the oil residue from the Tripoli brown compound by using the B-20 brush. This brush can also remove debris that has accumulated in the interproximal areas.

Applying FLEXIDENT pink polishing compound using another dry rag wheel.

With a lathe machine at low speed for the first round of polishing, followed by a higher speed using light touch for the final polishing, make sure the denture is polished in one direction only, holding the denture towards the rag wheel.

XIV. PACK THE FLEXIDENT CASE

After the usual disinfecting procedure ( using Talladiums Disinfectant and Denture Cleaner) for 15 minutes, place the case in the plastic safety bag and enclose with water before sealing the bag.

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