DENTAURUM 989-814-00 Remanium Star CoCr Bonding Alloy Instruction Manual

DENTAURUM 989-814-00 Remanium Star CoCr Bonding Alloy

Dear customer,
Thank you for choosing a quality product from Dentaurum. It is essential to read these instructions carefully and adhere to them to ensure safe, efficient use and ensure that you and your patients gain full benefit. Instructions for use cannot describe every eventuality and possible application. In case of questions or ideas, please contact your local representative. As our products are regularly upgraded, we recommend that you always carefully read the current Instructions for use supplied with the product and stored in the internet at www.dentaurum.com, even though you may frequently use the same product.
Manufacturer
Dentaurum GmbH & Co. KG I Turnstraße 31 I 75228 Ispringen I Germany
Quality information
Dentaurum ensures the faultless quality of its products. The content of these Instructions for use is based upon our own experiences. The user is solely responsible for the processing of the products. Since Dentaurum has no influence on how the user processes the product, we do not accept liability for incorrect results.

General instructions for processing

These Processing Instructions deal with the main steps when processing non- precious remanium® star alloys. Please consult the Instructions for use supplied with the individual alloys for further information or for features that may differ from these Processing Instructions for remanium® star. Alternatively, this information can be found at www.dentaurum.com. If you have any questions or queries, please contact your local representative. Please refer to the information at the end of these Instructions for contraindications and a dverse reactions.

Framework design

The design of the frameworks is based on standard dental technical rules.  The shape of the metal copings should correspond ina reduced scale to the final shape of the reconstructed crowns. Missing portions of teeth should be compensated as in fig. 1 to 8. A wall thickness of 0.4 mm for the copings guarantees good stability. The framework wall thickness should not fall below:incisor: 0.3 mm / posterior tooth: 0.3 mm The cross-section of the connectors in bridge frameworks should be as large as possible. The minimum size is: incisor: 4 – 6 mm2 / posterior tooth: 6 – 9 mm2 A uniform thickness of ceramic ensures stress-free connections, see fig. 1 to 8. Avoid applying disproportionate amounts of ceramic. The metal on the lingual side should finish below the incisal zone in order to prevent chipping. Areas to be soldered should be waxed up spaciously, see 5, 7, and 8. Rounding the metal / ceramic interfaces, see 1 to 7, will provide neat junctures and aesthetic shading. Bridge units must be designed with either a collar or at least inter- dental reinforcement (thermal dissipation). The outstanding physical properties of remanium® star allow very thin connections to be used between the crowns and bridge units. The teeth can later be more clearly separated from adjacent teeth and a blocked appearance can be avoided.

Finishing

General information:
Please observe the recommendations made on safety precautions to be taken when processing the alloy mechanically. These can be found in the Instructions for use enclosed with  the product.The higher physical values of the non-precious alloys require grinding and polishing tools different to those normally used for processing precious metal alloys. The grinding tools selected should only be used for one alloy. Observe the minimal coping thickness of 0.2 mm – 0.3 mm. Due to the high physical values of the non-precious alloys, both the wall thickness of the crown and the thickness of the bridge connecting points can be reduced by approx. 30 % in comparison to average precious metal alloys. Always grind in one direction without applying too much pressure. Avoid overlapping of the metal. Remove irregularities such as porosities and inclusions.

Finishing and polishing steps

Supercut STM separating disc

| 130-111-00

130-113-00

| High cutting efficiency and long life span.

High cutting efficiency and long life span.

Grinding of sprue attach- ments| Grinding wheel| 131-322-50| Highly suitable for grinding the stump of the sprue and for coar- se grinding.
Finishing| Supercut STM separating disc| 130-112-00| Rough finishing,
| | | e. g. of interdental spaces.
| Hard metal bur, with cross cut| 123-582-00

123-584-00

| General finishing with coarse hard metal burs. Fine grinding
| | 123-585-00

123-601-00

| can be done with fine hard metal burs.
| Aloxin-Point| 135-852-00| Pure aluminum oxide abrasives
| | 135-853-00| for smooth, even transitions,

especially metal occlusal surfa-

| | | ces.
Buffing| Silichrom polisher| 138-640-00

138-645-00

| ****

Abrasive performance, rough.

| Grey rubber polishers| 138-102-00

138-302-00

| ****

Abrasive performance, medium.

| Green rubber polishers| 138-101-00

138-301-00

| ****

Abrasive performance, fine.

Polishing| Polishing brushes| 141-800-00| Universal polish with hand tool.
Tiger Brillant polishing paste| 190-350-00| Fast acting high shine polishing paste.
Tiger Starshine Universal finishing paste| 190-301-00| High shine polishing paste for final finishing.
Polishing of crown‘s inner surfaces| Al2O3 50µm + polishing beads| 128-017-00

128-211-00

| For use with microblaster. Caution! Cover ceramic edges with wax.

Preparation of surfaces for ceramic veneering

Grind the metal surfaces with hard metal burs to ensure a smooth transition. Blast the surfaces with micro blaster polishing beads using pure aluminum oxide and medium grain size (125 μm) at a low pressure of 2 bar to 3 bar. Clean with distilled water in an ultrasonic cleaner.

Oxide firing

Oxide firing is not required for remanium® star. Oxide firing is advisable to visually check the framework condition (5 minutes without vacuum at the firing temperature of the opaque, unless otherwise indicated by the ceramic manufacturer). Following the bake, the oxide should be removed by blasting with single-use aluminum oxide abrasive, grain size 125 μm and low pressure of 2 bar – 3 bar. Afterward the surface must be cleaned again.

Ceramic veneering

remanium® star can be veneered using all suitable ceramics such as Dentaurum ceramics, as long as the CTE is suitable for the alloy (see alloy info sheet). The coefficient of thermal expansion (CTE) of many ceramic varieties changes, depending on the amount of times the ceramic is fired and the length of time in the firing furnace. The longer and the more often the ceramic is fired, the higher the CTE. The alloy CTE remains constant; the adhesion takes place in the time required for the temperature to cool down from the firing temperature to the standby temperature. The opaque material can be applied to the sandblasted and cleaned framework according to the ceramic manufacturer’s recommendations. It is important to dry the opaque thoroughly. Always ensure the ceramic furnace is calibrated. Further firings should be in line with the Instructions for use for the ceramic. If no other information is given by the ceramic manufacturer, the object is cooled as recommended in the alloy Instructions for use.
Important: After each firing, brush the framework under running water and allow to dry.

Soldering

Try to avoid soldered joints if possible. If however, it is necessary to solder, please ensure a suitable solder with composition and melting temperature which are appropriate for the alloy is used. Coat the solder objects with an adequate amount of flux.
Caution! Avoid letting the flux dry out.
Heat the framework until it is red hot. Position the parts that have been dipped in the flux and heat to flow. The following are suitable solders and flux for remanium® alloys:

Caution: Soldered objects should cool slowly after the ceramic has been fired.

Soldering after firing
Soldering after firing is not recommended as it reduces corrosive resistance and the ability of precious metal solders to fuse with non-precious alloys is low. Recommended alternatives are joining techniques such as laser welding, TIG welding and adhesive joining.

Laser welding

The laser welding technique produces a solder-free, mechanically strong and corrosion-resistant joint. It is important to observe the framework design, the surface structures, the welding sequence and the welding parameters recommended for each individual laser machine. Suitable welder filler rods are available for all remanium® alloys.

Cleaning

Crowns and bridges made in remanium® crown and bridge alloys can be cleaned, after finishing, with the ultrasonic solution P. Refer to the cleaning recommendations on the labels. Recommended ultrasonic solution after polishing:

Contraindications and adverse reactions

Signs of intolerance to remanium® star are extremely rare if the manufacturer’s Instructions for use are adhered to. If the patient has a proven allergy to any component within the alloy, this alloy must not be used for safety reasons. There have been individual reports of local irritations which were electrochemically induced. If various alloys have been used, it is possible that galvanic effects may occur. Please observe the information contained in the enclosed Instructions for use.

For more information on our products and services, please visit www.dentaurum.com

Turnstr. 31 I 75228 Ispringen I Germany I Tel. +497231/803-0 I Fax +497231/803-295
www.dentaurum.com I info@dentaurum.com

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