Technical Manual. TALLADIUM W. Muirfield Ln. Valencia, CA web:

Transcription

1 Technical Manual TALLADIUM W. Muirfield Ln. Valencia, CA web:

2 Table of Contents I. System Overview p.2 II. All-Ceramic Restorations: Layering and Staining Techniques p.3 a. Tooth / Die Preparation b. Waxing c. Spruing d. Investing e. Burnout f. Pressing g. Divesting / Sprue Removal III. Press-to-Metal Restorations p.6 a. Tooth / Die Preparation b. Coping / Framework Waxup c. Opaquing d. Full Contour Waxup for Pressing e. Spruing f. Investing g. Burnout h. Pressing i. Divesting / Sprue Removal IV. Porcelain Fused-to-Metal p.10 V. Firing Tables / Incisal Selection Table p.11 VI. Frequently Asked Questions p.12 VII. Helpful Repair Tips p.13 VIII. Luminesse II Product List p.14 1.

3 I. System Overview Luminesse II is a low-fusing glass/leucite ceramic keyed to the *VITA shade guide for life-like esthetics. Technicians can finally achieve the full complement of fixed restorations with this single system. Mixed Cases can easily be accomplished with absolute shade compatibility. For Porcelain Fused to Metal restorations the recommended alloy CTE range for the Luminesse II is 600 ºC. Talladium recommends a slow cooling for any alloy above that range. The Layering Technique is generally used when restoring anterior teeth to maximize the translucency and reflective qualities of internal colors. The pressed core should have adequate space for the application of internal staining and the incisal bake. The creativity of customizing is endless when using this technique. The Staining Technique is the preferred method for posterior restorations. Wax to full contour and press then proceed with a stain and glaze bake. Desired occlusion can be achieved during the wax-up procedure requiring minimal adjustments. The Press-to-Metal Technique is used when the extra strength of a metal substructure is needed. The recommended alloy CTE range for the Luminesse II is 600 ºC. Luminite Press Tilite Alloy with titanium has been scientifically formulated by Talladium to match the coefficients for Luminesse II. The inherent strength and fluidity of the Luminite Press Tilite Alloy provides copings as thin as.2 mm., thus enhancing porcelain shades and esthetics. The Porcelain Fused-to-Metal Technique can also be accomplished with Luminesse II porcelain in the traditional method using your favorite ceramic alloy or Luminite PFM Tilite Alloy with titanium for copings as thin as.2 mm. 2.

4 II. All-Ceramic Restorations: Layering and Staining Techniques A. Tooth / Die Preparation: Tooth preparation must have a shoulder or heavy chamfered margin. The dentist doesn t have to prepare the tooth subgingival. They only have to prepare the tooth to the gum line. Dies are prepared in the conventional manner with strict attention to blocking out all undercuts. B. Waxing: For the Layering Technique, fabricate the core approximately 75% leaving the remainder for the incisal buildup. The wax must be a minimum of.8 mm thickness. Cutback techniques vary. If desired results are not obtained, you may want to press the core a shade lighter. For the Staining Technique, wax to full contour then accent color with the florescent stains. Pressed Veneers For optimal results wax up veneers to a minimal thickness of.6 -.8mm. After pressing, the core material can then be cut back to.4mm for the overlay of incisal. C. Spruing: Talladium's Galileo ash free Pressable wax eliminates the possibility of introducing impurities into the pressed restoration. Use a 4-6 mm long, 6-8 gauge, ash free sprue relative to the thickness of the wax-up. Directly attach the sprue to the thickest area of the wax pattern, usually the incisal edge or the occlusal cusp. Flare out around the connection, eliminating all sharp corners and undercuts. Do not use the indirect technique or plastic sprues. For MOD s you ll need to double the sprues with 1/4 length on the mesial and distal. Single sprues can cause central fossa area to crack. (This is not for Inlays, MO, or DO) Weight of sprued pattern Number of ingots Investment ring size Layering Technique Staining Technique.25 to 0.6 gm of wax gram.75 to 1.4 gm of wax gram Weighing the Sprued Pattern Weighing the sprued pattern is imperative for a successful press. It will help you to determine the number of ingots required for both the press and size of investing ring. If the total weight of the sprued pattern is less than.25 g, a phantom sprue is used to relieve the pressure in the ring during pressing. The phantom sprue is made from the same gauge wax used for the pattern. Cut the phantom sprue so it is even with the top of the margin of the waxed unit(s). Re-weigh the final wax patterns to verify that it is in-line with the above recommendations. 3.

5 E. Burnout: F. Pressing: Attaching the Sprued Pattern Use just enough utility wax to create a small button on top of the sprue former, breaking the horizontal plane. Attach the sprued pattern at no more than a 30º angle from vertical. Multiple units should all be attached on the same plane spaced at least 3 mm apart. Make sure each unit is level in the ring so that the longest part of the margin is level with one another. D. Investing: Use Talladium's Pressable Ring System. Lubricate the inside of the ring with a thin coat of Vaseline to ease removal of investment. Use Talladium's Galaxy Universal Investment following manufacturer's instructions. Clean the wax pattern with Talladium s Pattern Prep Debubblizer according to instructions. Make sure the investment ring is full enough to place the leveling ring on top of the form. Remove investment mold from ring when the recommended set time is complete. To insure the investment sits level on a flat surface scrape off the excess from the plug. Place mold and plunger* in the burnout oven Do not preheat the ceramic ingot(s). Minimum soaking time for a 100 gram ring = ºF / 843 ºC Minimum soaking time for a 200 gram ring = ºF / 843 ºC Once the mold has reached its recommended burnout time, start the pressing cycle on the pressing furnace. When the temperature reaches 1300 ºF / 704 ºC, place the ceramic ingot(s) and the preheated plunger* into the investment ring in the pressing furnace. * Do not pre-heat the Talladium Disposable Plungers 4.

6 Pressing cycle: 100g 200g Entry Temp ºF / 800 ºC 1470 ºF / 800 ºC Vacuum Full Full Heat Rate / minute 110 ºF / 60 ºC 110 ºF / 60 ºC Pressing Temp ºF / 930 ºC 1725 ºF / 940 ºC Pressure 60 psi (4.2 bar) 60 psi (4.2 bar) Holding Time 20 min. 25 min. Pressing Time 10 min. 10 min After the pressing cycle, remove from the pressing furnace and let bench cool until cool enough to touch. Do not fast cool. G. Divesting / Sprue Removal: Use an extra plunger to mark the pressed ring. This will help to determine the length of the sprue button. Cut completely through the marked line on the pressed ring with a diamond separating disc. Remove most of the investment with glass beads or aluminum oxide. When the restoration is visible, reduce pressure down to 30 psi (2-bar pressure) and blast with glass beads. Use a fine diamond disc at low speed with water to cut sprue. Note: For bonding the Luminesse II All Ceramic Restoration, Talladium recommends the RelyX TM ARC Adhesive Resin Cement by 3M ESPE. 5.

7 III. Press-to-Metal Restorations A. Tooth / Die Preparation: Tooth preparation must have shoulder or heavy chafered margin. Dies are prepared in the conventional manner just as you would fabricate Porcelain Fused-to-Metal restorations. As always, pay strict attention to blocking out all undercuts. Press-to-metal restorations require a minimum of 1.5 to 2 mm reduction to allow for the metal coping, opaque and porcelain. B. Coping / Framework Waxup: Use Talladium's Galileo ash free Dip Pot Wax. This will allow you to create copings as thin as.2 mm, when using Luminite Press Tilite Alloy. For all other ceramic alloys, follow the manufacturer's recommendations. Attach an L shaped piece of 18 gauge wax to the lingual of the waxup to create a retention device during pressing. Use narrow pontics with open interproximals. For spruing and casting with Luminite Press Tilite Alloy, use 10 ga. (2 mm) sprues for single copings and larger for pontics. Follow Tilite s degassing procedure. C. Opaquing: Mix opaque paste and liquid on a glass slab to achieve a creamy consistency. Adding too much opaque liquid will cause the opaque shell to crack after firing. Apply the first layer onto the framework with a flat brush until 70% coverage of the metal has been attained. Dry the framework in an open furnace for a minimum 6-8 min. depending on size and number of units. Alloy Tilite Luminite-Press 1st Opaque Precious / semi-precious 1st Opaque All Alloys 2nd Opaque Dry Time Minutes Start Temp ºF / ºC Start Vac. ºF / ºC Final Temp ºF / ºC Rate of Climb ºF / ºC Hold Time Minutes Cool Time Minutes / / / / / / / / / / / / Bench cool. Opaque should exhibit a glossy finish. D. Wax-up for Pressing: Prior to waxing over the metal framework, weigh the framework and write it down. After completion of the waxup and spruing process, weigh again. Subtract the difference. This will be the total weight of the wax in relationship to the number of ingots. With the Galileo ash free Pressable Wax, contour using the layering or staining technique. The thickness of the wax should be a minimum of.8 mm. After the pressing, the porcelain can be finished down to a minimum thickness of.6 mm. 6.

8 E. Spruing: Use a ¼ (6 mm) long, 6-8 gauge, ash free sprue relative to the thickness of the wax-up. Directly attach the sprue to the thickest area of the wax pattern. Usually the incisal edge or the occlusal cusp and round the connection, eliminating all sharp corners and undercuts. Do not use the indirect technique or plastic sprues. Weight of sprued pattern Number of ingots Investment ring size.1 to.5 gm of wax gram.6 to 1.1 gm of wax gram Weighing the Sprued Pattern Weighing the sprued pattern is imperative for a successful press, as it will help you to determine the number of ingots required for both the press and size of the investing ring. If the total weight of the sprued pattern is less than the minimum weight for the recommended ring size, a phantom sprue is used to relieve the pressure in the ring during pressing. The phantom sprue is made from the gauge wax used in the pattern. Cut the phantom sprue so it is even with the top of the margin of the waxed unit(s). Re-weigh the final wax pattern to verify it is in-line with the above recommendations. Attaching the Sprued Pattern Use just enough utility wax to create a small button on top of the sprue former, breaking the horizontal plane. Attach the sprued pattern at no more than a 30º angle from vertical. Multiple units should all be attached on the same plane, spaced at least 3 mm apart (including phantom sprues). Make sure each unit is level in the ring, so that the longest part of the margin is level with one another. F. Investing: Use Talladium's Pressable Ring System. Lubricate the inside of the ring with a thin coat of Vaseline to ease removal of investment. Use Talladium's Galaxy Universal Investment following manufacturer's instructions. 7.

9 G. Burnout: H. Pressing: Clean the wax pattern with Talladium s Pattern Prep Debubblizer according to directions. Make sure the investment ring is full enough to place the leveling ring on top of the form. Remove investment mold from ring when the recommended set time is complete. To insure the investment sits level on a flat surface scrape off the excess from the plug. Place mold and plunger* in the burnout oven Do not preheat the ceramic ingot(s). Minimum soaking time for a 100 gram ring = ºF / 843 ºC Minimum soaking time for a 200 gram ring = ºF / 843 ºC Once the mold has reached its recommended burnout time, start the pressing cycle on the pressing furnace. When the temperature reaches (1300 ºF / 704 ºC), place the ceramic ingot(s) and the preheated plunger* into the investment ring in the pressing furnace. Pressing cycle: 100g 200g Entry Temp ºF / 800 ºC 1470 ºF / 800 ºC Vacuum Full Full Heat Rate / minute 110 ºF / 60 ºC 110 ºF / 60 ºC Pressing Temp ºF / 930 ºC 1725 ºF / 940 ºC Pressure 60 psi (4.2 bar) 60 psi (4.2 bar) Holding Time 20 min. 25 min. Pressing Time 10 min. 10 min After the pressing cycle, remove from the pressing furnace and let bench cool, until it is cool enough to touch. Do not fast cool. * Do not pre-heat the Talladium Disposable Plungers 8.

10 I. Divesting / Sprue Removal: Use an extra plunger to mark the pressed ring. This will help to determine the length of the sprue button. Cut around the marked line on the pressed ring with a diamond separating disc. Remove most of the investment with glass beads or aluminum oxide. When the restoration is visible, reduce pressure down to 30 psi (2-bar pressure) and blast with glass beads. Use a fine diamond disc at low speed with water to cut sprue. 9.

11 IV. Porcelain Fused-to-Metal Porcelain Fused-to-Metal can also be accomplished with Luminesse II Porcelain. A ceramic alloy with a CTE range of 13.8 to 600 ºC is recommended. Talladium recommends a slow cooling for any alloy above that range. Luminite PFM Tilite Alloy is an excellent choice for single to large-span bridgework. When using the Luminite PFM Tilite, we recommend Talladium s Galileo TM ash-free Dip wax for copings as thin as.2 mm. For all other alloys, follow manufacturer s recommendations. 10.

12 V. Firing Tables / Incisal Selection Tables Pressables for All-Ceramic and Press-to-Metal Staining & Layering Technique Dry Time (Min.) Start Temp Start Vacuum 1 st Bake Hi Temp. 2 nd Bake Hi Temp. Rate of Climb ( F/ C - Min) Hold Time (Min.) Cool Time (Min.) Body/Incisal / / / / / Stains/Glaze / / / / Porcelain Fused-to-Metal * For bridgework - minimum of 10 minute dry time Tilite Luminite - PFM Tilite Luminite - PFM 1 st Opaque Dry Time (Min.) Start Temp Start Vacuum Final Temp. Rate of Climb ( F/ C - Min) Hold Time (Min. no vac.) Cool Time (Min.) / / / / nd Opaque / / / / Precious/ semi-precious 1 st Opaque / / / / nd Opaque / / / / All alloys 1 st Bake 8* 750 / / / / nd Bake / / / / Stain/Glaze / / / Correction Bake / / / / Dry Time (Min.) Start Temp Start Vacuum Final Temp. Rate of Climb ( F/ C - Min) Hold Time (Min. no vac.) Cool Time (Min.) Margin 1 st Bake / / / / Margin 2 st Bake / / / / Shade Selection Table Note: For a fire polish glaze, 2 firings are recommended. Opaque/ Dentin A1 A2 A3 A3.5 A4 B1 B2 B3 B4 C1 C2 C3 C4 D2 D3 D4 Incisal #

13 VI. Frequently Asked Questions What would make the investment crack during pressing? Pressure set too high Calibrate pressing oven. If oven underfires, the ingot will not completely soften causing the plunger to come down on a cold ingot. The bottom of the ring was not scraped to a perfect horizontal plane. Adding an extra pellet (just in case) will put too much pressure on the ring. Follow table on page 3 for the amount of pellets per weight of the wax patterns. Why is the pressed core incomplete (mispress)? The weight of the wax patterns exceeded.6 grams and only one pellet was used. Pressing temperature too low. Raise temperature incrementally by 50 ºF / 10 ºC until you achieve a full press. Calibrate oven. Sprue size too small. Use a 6-8 gauge sprue. Make sure that the sprue connection is shaped like a pyramid down to the wax unit. Why did my pressed core crack? The wax pattern had a thin spot. Make sure that the thickness is at a minimum of.8mm. Too much pressure was used during divesting. Remove most of the investment with aluminum oxide or glass beads. When the restoration is visible, reduce pressure to 30 p.s.i. and blast with glass beads. Aluminum oxide can destroy the margins. The thickness of the wax pattern was not uniform. A fluctuation from 1.5 mm to 0.5 mm back to 1.5 mm will restrict the full flow. This situation typically occurs with veneers. Bulk up to achieve a uniform thickness. When the pressing is completed, you can finish down the bulked up area. Why does the pressed core exhibit a low value and/or grey appearance? The pressing temperature is set too high or the oven is firing too hot. Lower the temperature incrementally by 50 ºF / 10 ºC until the value is correct. The use of a wax which contains ash. Use the Galileo ash free waxes for optimal performance. If the margins are not visible with white wax, use Galileo margin wax which come in an assortment of colors. Why did I get porosity in the pressed core? The pressing temperature set too high or the oven is firing too hot. The bottom of the investment mold was not scraped to create a perfect horizontal plane. When the plunger pushes down during the press it can scrape the investment wall leaving particles around the marginal area. The use of a wax which contains ash. Contaminated wax. 12.

14 Why did I get a crack in the restoration during build up? The pressed core may have been thinner than the recommended.8 mm. The porcelain overlay thickness exceeds the porcelain thickness of the core. Maintain the core at 60% of the thickness of the final restoration. This insures the strength to resist cracking. The layering thickness is 40%. The firing temperature exceeded 1410 ºF / 770 ºC. The thickness of the core was not uniform. A fluctuation from 1.5 mm to.5 mm to 1.5 mm will cause the core to crack. The firing peg was too thick. Use a thin metal wire firing peg. Why did the layered porcelain pull away from the core? The surface of the core wasn't sufficiently sandblasted. Blast the surface with psi of 50 micron Aluminum Oxide where porcelain is going to be fired. Over condensed. Luminesse II has a very fine grain structure and does not require as much condensing as traditional porcelains. Why did the restoration distort following the porcelain build-up? The core was too thin (less that.8mm). There was too much porcelain layered over the core. The firing temperature exceeded 1410 ºF / 770 ºC. VII. Helpful Repair Tips If I see a crack in the core while divesting, is there a way to repair it? Yes, blast away all the investment except what is inside the restoration. Keep the investment inside the coping, add a little dentin over the crack and fire the unit as follows: 750 ºF / 399 ºC entry temperature, 100 ºF / 55 ºC heat rate, no vacuum, 1550 ºF / 843 ºC high temperature, hold 1 minute, cool 2 minutes. How do I repair a chipped core at the margin? Use Margin Porcelain. Fire just like the 1 st bake, but adjust dry time to 4 minutes and final temperature to 1400 ºF / 760 ºC. How do I repair a chipped margin that has already been layered? Mix 50% Dentin and 50% Margin Porcelain. Fire just like the 1 st bake, but adjust dry time to 4 minutes and final temperature to 1365 ºF / 740 ºC. 13.

15 VIII. Luminesse II Product List * * * * * * * Unit Description Item # Kit System Kit 1905 Kit Starter Kit 1905-K Kit Test Kit 1905-T Ingots for Layering Technique (5 per pack) 2 g Ingot A00-50% 1900-A g Ingot A00-70% 1900-A g Ingot A0-50% 1900-A g Ingot A0-70% 1900-A g Ingot A1-50% 1900-A g Ingot A2-50% 1900-A g Ingot A3-50% 1900-A g Ingot A3.5-30% 1900-A g Ingot A3.5-50% 1900-A g Ingot A4-30% 1900-A g Ingot A4-50% 1900-A g Ingot B00-50% 1900-B g Ingot B0-30% 1900-B g Ingot B0-50% 1900-B g Ingot B0-70% 1900-B g Ingot B1-50% 1900-B g Ingot B2-50% 1900-B g Ingot B3-50% 1900-B g Ingot B4-30% 1900-B g Ingot B4-50% 1900-B g Ingot C1-50% 1900-C g Ingot C2-50% 1900-C g Ingot C3-30% 1900-C g Ingot C3-50% 1900-C g Ingot C4-30% 1900-C g Ingot C4-50% 1900-C g Ingot D2-50% 1900-D g Ingot D3-50% 1900-D g Ingot D4-30% 1900-D g Ingot D4-50% 1900-D4-50 Ingots for Staining Technique (5 per pack) 2 g Ingot ST1-30% 1900-ST g Ingot ST1-50% 1900-ST g Ingot ST2-50% 1900-ST g Ingot ST3-30% 1900-ST g Ingot ST3-50% 1900-ST g Ingot ST4-30% 1900-ST g Ingot ST4-50% 1900-ST4-50 Ingots for Inlay/Onlay (5 per pack) 2 g Ingot T1-30% 1900-T g Ingot T1-50% 1900-T1-50 * Unit Description Item # Opaque Paste 4 g Opaque Paste A A0 4 g Opaque Paste A A1 4 g Opaque Paste A A2 4 g Opaque Paste A A3 4 g Opaque Paste A A3.5 4 g Opaque Paste A A4 4 g Opaque Paste B B0 4 g Opaque Paste B B1 4 g Opaque Paste B B2 4 g Opaque Paste B B3 4 g Opaque Paste B B4 4 g Opaque Paste C C1 4 g Opaque Paste C C2 4 g Opaque Paste C C3 4 g Opaque Paste C C4 4 g Opaque Paste D D2 4 g Opaque Paste D D3 4 g Opaque Paste D D4 Opaque Dentin 10 g Opaque Dentin A A1 10 g Opaque Dentin A A2 10 g Opaque Dentin B B1 10 g Opaque Dentin B B2 10 g Opaque Dentin D D2 Dentin 10 g Dentin A A00 10 g Dentin A A0 10 g Dentin A A1 10 g Dentin A A2 10 g Dentin A A3 10 g Dentin A A g Dentin A A4 10 g Dentin B B00 10 g Dentin B B0 10 g Dentin B B1 10 g Dentin B B2 10 g Dentin B B3 10 g Dentin B B4 10 g Dentin C C1 10 g Dentin C C2 10 g Dentin C C3 Cont. Shade Guide for Staining Ingots Ingots ST1 ST2 ST3 ST4 Shade A1/A2/B1/B2/C1/D2 A3/A3.5/B3/D3 A4/B4/D4 C2/C3/C4 14.

16 Luminesse II Product List Unit Description Item # Dentin (cont.) 10 g Dentin C C3 10 g Dentin D D2 10 g Dentin D D3 10 g Dentin D D4 Margin Porcelains 10 g Margin Porcelain A A1 10 g Margin Porcelain A A2 10 g Margin Porcelain A A3 10 g Margin Porcelain A A4 Modifiers 10 g Modifier Blue 1908-MBL 10 g Modifier Brown 1908-MBR 10 g Modifier Orange 1908-MO 10 g Modifier Pink 1908-MP 10 g Modifier Violet 1908-MV 10 g Modifier White 1908-MW 10 g Modifier Yellow 1908-MY Incisal 10 g Incisal g Incisal g Incisal g Incisal g Clear 1903-C 10 g Neutral 1903-N 10 g Opal Clear 1903-OC Incisal Translucents 10 g Translucent Blue 1907-TB 10 g Translucent Clear Blue 1907-CB 10 g Translucent Grey 1907-TG 10 g Translucent White 1907-W Glaze and Liquids 10 ml Glaze Liquid 1904-GL 5 g Glaze XF powder 1904-GXF 5 g Super Glaze paste 1904-SG 25 ml Modeling Liquid 1904-ML 10 g Opaque Liquid 1904-OL Chroma Fluorescent Stains 3 g Shade A 1906-A 3 g Shade B 1906-B 3 g Shade C 1906-C 3 g Shade D 1906-D Rev Fluorescent Stains 3 g Shade Black 1906-N 3 g Shade Blue 1906-BL 3 g Shade Brown 1906-TB 3 g Shade Dark Brown 1906-DB 3 g Shade Dark Orange 1906-DO 3 g Shade Grey 1906-GY 3 g Shade Orange 1906-O 3 g Shade Red-Brown 1906-BR 3 g Shade White 1906-W 3 g Shade Yellow 1906-Y Non-Fluorescent Stains 3 g Shade Cream 1906-CR 3 g Shade Green 1906-G 3 g Shade Khaki 1906-K 3 g Shade Pink 1906-P 3 g Shade Violet 1906-V 3 g Shade Yellow-Orange 1906-YO Correction Powder 10 g Correction Powder 1911 TALLADIUM W. Muirfield Ln. Valencia, CA web: info@talladium.com