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Gold Abutment for crown

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Presentation on theme: "Gold Abutment for crown"— Presentation transcript:

1 Gold Abutment for crown

2 Gold abutment Product portfolio
NC RC For NC and RC Education

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 Education

4 Gold abutment – Lab procedures
Step 1- Preparation Fabricate a master cast Make a diagnostic wax-up Make a silicone key Education

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 Education

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 Education

7 Gold abutment – Lab procedures
For proper hygiene: Cement margin must be no more than 2.0 mm below gingival level Education

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 Education

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 Education

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 Education

11 Gold abutment – Lab procedures
Never sand-blast to devest without mounting abutment on polishing aid! Education

12 Gold abutment – Lab procedures
Casting errors and incorrect handling Procedure must be repeated if: The casting gold did not flow out sufficiently Education

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! Education

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 Education

15 Gold abutment – Lab procedures
Step 5 - Fabricate the cement-retained single crown Trim and polish the abutment Education

16 Gold abutment – Lab procedures
Block out screw channel Wax framework directly on top Silicone key shows relations for restoration Education

17 Gold abutment – Lab procedures
Cast framework in conventional manner Trim and fit precisely onto customized abutment Education

18 Gold abutment – Lab procedures
Complete ceramic veneering Deliver final restoration to dentist Education

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. Education

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 Education

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 Education

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