1. Gold Abutment for crown

2. Gold abutment Product portfolioNC RC
For NC and RC
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3. Gold abutment Concept Intended use Component materials Benefits
Screw- or cement-retained crowns
Cement-retained bridges via mesostructure
Telescopic bridgeworks or telescopic crowns
Component materials
Gold Abutment (non-oxidizing Gold)
Basal Screw (TAN – TAN is one type
of titanium alloy material)
Modeling Aid (Polymer)
Benefits
Precise wax modelation
Safe cast-to procedures
Esthetic solution even with thin mucosa biotype
The Gold abutment is not suitable for direct splinting
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4. Gold abutment – Lab procedures
Step 1- Preparation
Fabricate a master cast
Make a diagnostic wax-up
Make a silicone key
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5. Gold abutment – Lab procedures
Hand-tighten Gold Abutment onto analog
Shorten burn-out modeling aid to height of occlusal plane
Attach Gold Abutment to polishing aid for easier handling
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6. Gold abutment – Lab procedures
Step 2 - Wax modeling
Wax layer must be at least 0.7 mm thick
Do not cover margins of abutment with wax
For sharp-edged finish of screw channel, use modeling aid
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7. Gold abutment – Lab procedures
For proper hygiene: Cement margin must be no more than 2.0 mm below gingival level
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8. Gold abutment – Lab procedures
Step 3 - Investing of customized abutment
Do not use wetting agents
Thoroughly clean abutment before investing
Remove all wax particles (use insulating agents)
Invest customized abutment in usual method
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9. Gold abutment – Lab procedures
No wax on delicate margins
Speed investment materials are not recommended
Invest following the manufacturers’ instructions
Follow recommended mixing ratio and preheating time
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10. Gold abutment – Lab procedures
Step 4 - Devesting
Devest abutment with ultrasound, waterjet, pickling acid or glass fiber brush
Always devest with a polishing aid to protect the implant-abutment connection
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11. Gold abutment – Lab procedures
Never sand-blast to devest without mounting abutment on polishing aid!
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12. Gold abutment – Lab procedures
Casting errors and incorrect handling
Procedure must be repeated if:
The casting gold did not flow out sufficiently
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13. Gold abutment – Lab procedures
Casting errors and incorrect handling
Intruded casting metals and casting pearls cannot be removed from the connection part of the Gold Abutment!
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14. Gold abutment – Lab procedures
Casting errors and incorrect handling
The Ceramicor® alloy surface cannot be covered with ceramic veneering material.
Ceramicor® is a non-oxidizing alloy and allows no ceramic bonding
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15. Gold abutment – Lab procedures
Step 5 - Fabricate the cement-retained single crown
Trim and polish the abutment
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16. Gold abutment – Lab procedures
Block out screw channel
Wax framework directly on top
Silicone key shows relations for restoration
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17. Gold abutment – Lab procedures
Cast framework in conventional manner
Trim and fit precisely onto customized abutment
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18. Gold abutment – Lab procedures
Complete ceramic veneering
Deliver final restoration to dentist
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19. Alloy remarks concerning castable Ceramicor® components
Ceramic cannot be bonded directly to cast-on Ceramicor® components as this alloy does not form bonding oxides. Ceramicor® is only suitable for cast-on procedures.
When selecting the casting or bonding alloy, ensure that it is compatible with the high-fusing alloy of the Ceramicor® components. The melting range of this casting alloy must not exceed a liquidus temperature of 1350°C/2462°F.
Ceramicor® must not be cast on with base metal casting alloys, because gold in combination with nickel or cobalt causes destruction of the components.
Suitable dental casting alloys are:
High noble alloys
Precious metal alloys with a minimum content of gold and platinum group metals of 25%
Palladium based alloys with a minimum content of palladium of 50%
Alloy types according to the following ISO norms are suitable for cast-on procedures to the prefabricated Ceramicor® component:
ISO norm 9693
ISO norm 1562
ISO norm 8891.
The alloy manufacturer’s recommendation must be followed. Due to diffusion at the alloy / gold coping interface, components made from an unsuitable alloy may form phases with low strength, reduced corrosion resistance or a lower melting range.
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20. Gold abutment - Lab Procedures
Final insertion
Remove the healing abutment or temporary restoration and thoroughly clean the implant and bridge
Position restoration and check fit
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21. Gold abutment - Lab Procedures
Final insertion
Tighten to 35 Ncm with SCS screwdriver and torque ratchet
Close screw access with cotton, sealing compound (i.e. gutta percha) and composite
Cement single unit crown
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