Transcript
CAD/CAM
Product description and Instructions for Use Cercon® base, Cercon® base light, Cercon® base medium, Cercon® base colored (short: Cercon® base) and Cercon® ht, Cercon® ht light, Cercon® ht medium Cercon® base PMMA, Cercon® base cast, Cercon® wax for Cercon® brain and Cercon® brain expert
Product description Cercon® base, Cercon® base light, Cercon® base medium, Cercon® base colored, (short: Cercon® base), Cercon® ht, Cercon® ht light, Cercon® ht medium (short Cercon® ht)
Indications in the anterior and posterior segments: Cercon® base / Cercon® ht is indicated for • Crowns • Telescopic primary crowns • Multi-unit bridges (with no more than two pontics between abutment crowns) • Abutments Cercon® base / Cercon® ht can be used as a substructure (framework) which is then veneered with a dental veneering ceramic or can be used for full-contour application (without veneering) as well. In the case of Telescopic primary crowns and abutments the substructure is not veneered.
Product description: Cercon® base / Cercon® ht blanks are made of yttria-stabilized zirconia (Y-TZP). They are used in fabricating frameworks for fixed prosthetic restorations using Cercon® brain / Cercon® brain expert. They are made of an oxide ceramic material characterized by particularly high-strength. These blanks are available in white
(Cercon®
base) and three
gradations of ivory (Cercon® base light, Cercon® base medium,
Contraindications: • In patient hypersensitivity to zirconia or one of the other ingredients, this medical product may not be used at all or only under the particular scrutiny of the dentist or physician in charge • Bruxism or recalcitrant parafunctional habits (as usual for all ceramically veneered frameworks) • Insufficient available space • Inlay bridges
Cercon® base colored). A highly translucent variant (Cercon® ht,
• Endodontic posts
Cercon®
• Endosseous implants
ht light and
Cercon®
ht medium) offering particularly
pro-nounced light transmission completes this product range. Depending on the framework design, Cercon® base / Cercon® ht frameworks can be ceramically veneered or inserted as fully anatomic restorations. Which blank is selected will depend on the shade to be reproduced and the space available for the veneer.
Warnings: Known cross-reactions or interactions of this medical product with other medical products or material already present in the oral environment must be taken into consideration by the dentist in charge when selecting this medical product.
Precautions: With fully anatomic restorations, no space is required for the
Please note: • Keep product dust away from eyes • Avoid any
ceramic veneer, which may allow the dentist to preserve more of
contact with mucosa • After use, wash your hands and apply a
the tooth substance during preparation.
hand cream • When using, do not eat or drink, do not ingest, do not inhale dust particles • Use local suction and suitable mouth/
Framework material Temporary cementation Definitive cementation
Zirconia Y-TZP
• Adhesive luting • Conventional cementing
Using Cercon® brain / Cercon® brain expert, your restorations and frameworks are individually fabricated to your digital design specifications such as anatomic shape, framework wall thickness and connector diameter or cementing gap. Always use the most current version of the design software, as this may influence the production of your restorations. – As per May 2011, the most current software version for Cercon® art is version 3.1.5.
face protection during grinding
Possible
Processing the material will result in the release of dust that may cause irritation of the eyes, skin or respiratory passages. The overall maximum workplace concentration (MAK) for zirconia under German occupational health regulations is 1 mg/m³, which means that local suction must be ensured during all processing. The safety and warning notes listed here describe how to use our system components in a safe and risk-free manner. Notify the dentist in charge of all factors described above if you use this medical product for a custom design and make sure to comply with the Instructions for Use and the pertinent Material Safety Data Sheets (MSDS).
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Product description Adverse effects:
In doing so, however, make sure that the relief of the occlusal
We are not aware of any risks or adverse effects related to
surfaces is not modified by deepening existing fissures, as this
Cercon® base / Cercon® ht. If properly processed and used,
might compromise the stability of the material due to notching
adverse effects of this medical product are highly unlikely.
action. Note that a shallow occlusal relief will increase the life
However, reactions of the immune system (such as allergies) or
expectancy of fully anatomic restorations.
localized paraesthesia (such as an irritating taste or irritation of the oral mucosa) cannot be completely ruled out as a matter
When manually finishing the frameworks, never (!) segment
of principle. Should you learn of any adverse effects – even
them interdentally with cutting wheels or other rotary
questionable ones – you are requested to notify us.
instruments, because this, too, might result in notching and reduced stability.
Framework dimensions (anterior and posterior): Wall thickness-Single crowns Margin thickness-Single crowns Wall thickness-Bridges Margin thickness-Bridges
0,4 mm 0,2 mm 0,5 mm 0,2 mm
Important note: Always make sure that the minimum thickness of the framework in the occlusal area meets the minimum-thickness requirements even after subsequent occlusal adjustment.
Additional dimensional requirements for the anterior region: Number of pontics
• Framework design for ceramic veneering 2
Connector cross section
6 mm2
Frameworks to be ceramically veneered must be designed to a reduced anatomical shape for the veneer to receive maximum support by the framework.
Additional dimensional requirements for the posterior region: Number of pontics
2
Connector cross section Cantilever pontic at tooth position (only one pontic, up to one premolar width)
The frameworks can be veneered using either the pressing technique or the buildup technique.
9 mm2 Up to second premolar
Connector cross section for this cantilever pontic
Technical specifications: Typ II, Class 6 (according to DIN EN ISO 6872; 2009)
12 mm2
• CTE: 10.5 (25–500°C) • Modulus of elasticity: 210 GPa
General notes on framework design:
Composition (in mass %):
• Fully contoured framework design
• Zirconia • Yttria 5% • Hafnium oxide <2% resp. <3%
Indicated especially where little occlusal space is available, where
(Cercon ht) • Alumina and silica < 1% • (Total 100%)
the restoration will be inserted without prior veneering or where the restoration will be individually characterized using body stains. Fully contoured framework designs will be given the most suitable surface shape and texture automatically, as the Cercon® brain / Cercon® brain expert milling strategy uses a particularly fine cutter. The framework surface thus attained can be additionally polished carefully (!) before sintering, using rotary instruments such as fine cutters or wheels.
Finishing: • Processing with Cercon® brain: Processed in the same manner as all Cercon® base / Cercon® ht shades. For detailed instructions, please refer to the Cercon® brain Instructions for Use. • P rocessing with Cercon® brain expert: For processing the blanks, use Type 0 Cercon® brain expert cutters (ZrO2). For detailed instructions, please refer to the Cercon® brain expert Instructions for Use.
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• Sintering with the Cercon® heat plus Cercon® base, Cercon® base light, Cercon® base medium, Cercon® base colored:
Frameworks made of these materials are sintered at
• 1.350°C in the Cercon® heat furnace or at
• 1.350°C bzw. 1.450°C in the Cercon® heat plus furnace
Sandblasting:
- Program #2 for bridges of up to eight units,
The sandblasting aid facilitates the removal of the object from the blank. It helps prevent framework fracture or other damage to the
Tmax. = 1.450°C
Correct position on the sintering tray.
- Program #1 for bridges of up to eight units, Tmax. =1.350°C
Sintering tray with sintering block.
- Program #3 for bridges of nine units or more
workpieces. Use alumina (50 µm, max. 1.5 bar) to sandblast on the labial and buccal sprues of the object and the “tongue” connector,
Tmax. = 1.450°C**
because the object must be sintered together with that “tongue”. Cercon®
ht,
Cercon®
ht light,
Cercon®
Frameworks made of Cercon®
ht medium:
ht are sintered at
•
1.500°C in the Cercon® heat plus furnace
- Program #4 for bridges of up to eight units,
By trimming excess edges at the bottom of the “tongue” you can give the object more stability on the sintering block. (The smaller objects nested inside the “tongue” are detached completely and sintered separately.)
Tmax. = 1.500°C
- Program #5 for bridges of nine units or more, Tmax. = 1.500°C
• Special sintering notes applicable to large-span bridges
(> 9-gliedrig) in Cercon® heat plus: Sandblasting aid.
Sandblasting the workpieces.
Nesting: To ensure homogeneous contraction, nest smaller objects (such as single copings or three-unit bridges) on the inside (“tongue”) of larger workpieces. Before milling: Completely remove the barcode label from the blank to avoid contamination of the sintering furnace (Cercon® heat plus). Sintering: Only two wide-span bridges (> 8 units) can be sintered in the Cercon® heat plus at a time. Place the object on the sintering block, with due regard to the internal vertical clearance of the Cercon® heat plus (130 mm) and the need to facilitate contraction without any mechanical constraints. The bridge must not touch the sintering block during the sintering.
Separation: The object is separated from the tongue using diamond cutters under irrigation.
Manual finishing after sintering: • Sandblast the inside and outside of the framework with alumina (110–125 µm, max. 3–4 bar, 45° angle). • Eliminate premature contacts one by one until the framework has reached its final position on the die(s). During the try-on and fitting of the framework, keep the dies on the cast and try on the framework as a whole. • Once the try-on and fitting work has been completed, do not perform any additional adjustments such as finishing the entire framework.
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Product description Note: Zirconia crown or bridge abutments should fit passively,
Build-up technique
without friction. The rationale for requiring a passive fit lies in the
It is recommended to use Cercon® ceram kiss / Cercon® ceram
physical properties of the material itself: Ceramics will tolerate
press / Cercon® ceram love (ceramic veneering materials) for
compressive stress but not tensile stress. In crowns that
veneering zirconia frameworks. Make sure to follow the applicable
exhibit a friction fit, this friction is generated by certain “bearing”
Instructions for Use.
parts of the framework, as the crown itself never rests completely on the die due to processing-related surface roughness (the same
Annealing:
actually holds for cast-metal frameworks). It is only the peaks of
Based on the results of our scientific testing of zirconia frame-
the surface roughness (the named “bearing” parts) that are in
works, we consider a separate annealing (“healing”) step both
contact with the die surface. This converts the compressive
unnecessary and inappropriate.
forces generated by masticatory pressure into tensile forces, which may well damage the crown.
In-laboratory polishing: Unveneered zirconia frameworks should not be inserted without
• Adapt the framework margins exactly to the preparation margins.
polishing them to a high luster or sealing them with a glaze in order to protect the antagonists from abrasion. In addition, polishing or glazing the restoration supports patients in their efforts at
Note: Zirconia should be finished using diamond instruments
oral hygiene.
under proper irrigation only. Keep the pressure on the framework material to a minimum and work only in one direction.
In-office polishing: Comprehensive DeguDent-initiated studies have demonstrated
• Sandblast the finished areas once again with alumina (110–125 µm, max. 3–4 bar, 45° angle). • Finally, clean the framework using a steam cleaner.
the abrasive effect of Cercon® base / Cercon® ht on the antagonist not to exceed that of commercially available ceramic veneers or lithium disilicate ceramics – not even after adjusting on polishing.
Veneering / shading: You may need to adapt your usual build-up procedure to the
Strictly for prevention purposes we recommend, following final
respective Cercon® base shade. Please read instructions for use
intraoral occlusal adjustment of the restoration, polishing any
of the used veneering ceramic.
adjusted surfaces to a high lustre or sealing them with glaze before temporary or definitive cementing. This is very important as
Note that Cercon® ht exhibits high levels of light transmission due
it protects the antagonists from possible abrasion. In addition,
to its pronounced translucency.
polishing or glazing the restoration supports patients in their efforts at oral hygiene.
General Notably, reproduction of the custom shade is potentially
Shades finalized by staining may result in bright spots where the
influenced by:
stain was removed during occlusal adjustment.
• Die shade • Colour of the material used for temporary/definitive cementing
Transport and storage:
• Wall thickness of the framework
There are no special terms.
• Use of liner Staining technique For tooth-coloured staining of fully anatomic Cercon® base / Cercon® ht restorations, we recommend our Cercon® ceram body stains.
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Product description Cercon® base PMMA Product description:
Indications in the anterior and posterior segments:
Cercon® base PMMA are made of polymethylmethacrylate. They are used in fabricating provisionals for crown and bridge
• Crowns
frameworks for fixed prosthetic restorations.
• Multi-unit bridges (with one pontic between abutment crowns)
Framework material
Polymethylmethacrylat
Temporary cementation
Yes
Definitive cementation
–
Using Cercon® brain/Cercon® brain expert, your restorations and frameworks are individually fabricated to your digital
Cantilevered-pontic bridges are fabricated at the ordering laboratory’s risk. All provisionals should not be worn for longer than six months.
Contraindications: • In patient hypersensitivity to polymethyl methacrylate or one of the other ingredients, this medicinal product may not be used at all.
design specifications such as anatomic shape, framework wall thickness and connector diameter or cementing gap.
Warnings: Known cross-reactions or interactions of this medical product
Always use the most current version of the design software,
with other medical products or material already present in the oral
as this may influence the production of your restorations. – As
environment must be taken into consideration by the dentist in
per May 2011, the most current software version for
charge when selecting this medical product.
Cercon® art is version 3.1.5.
Processing Cercon® base PMMA disk will result in the release of dust that may cause irritation of the eyes, skin or respiratory passages. The legal threshold limit value (TLV) for methylmethacrylate in Germany is 210 mg/m³. To ensure safe and sustainable compliance, the measured value must not exceed 25% of the TLV. This in turn requires that the room in which the Cercon® brain expert is used to process this material (max. 2 disks per 8 hours) must have a volume of at least 28 m³. In rooms with a smaller volume, the air exchange rate must be increased by a suitable HVAC installation.
Precautions: Please note: • Keep product dust away from eyes • Avoid any contact with mucosa • After use, wash your hands and apply a hand cream • When using, do not eat or drink • Do not swallow • Do not inhale dust particles during grinding • Use local suction and suitable mouth/face protection during grinding. Wear protective gloves when replacing or disposing of dust filter bags.
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Product description The safety and warning notes listed here describe how to use our system components in a safe and risk-free manner. Notify the dentist in charge of all factors described above if you use this medical product for a custom design and make sure to comply with the Instructions for Use and the pertinent Material
Technical specifications: • Density: 1.19 g/cm³ • Solubility: ≤ 7.5 µg/mm³ • Flexural strength: ≥ 65 MPa • Water sorption: ≤ 40 µg/mm³ • Flexural modulus: ≥ 2,000 MPa
Safety Data Sheets (MSDS).
Composition (in mass-%):
Adverse effects:
of methacrylic acid > 99% • Pigments (predominantly
We are not aware of any risks or adverse effects related to
iron oxide pigments and benzoyl peroxide) < 1% • Polymethyl
• Polymethyl methacrylate and cross-linked copolymers
Cercon® base PMMA. If properly processed and used, adverse effects of this medical product are highly unlikely. However,
methacrylate may contain up to approx. 1% residual monomer • (Total 100%)
reactions of the immune system (such as allergies) or localized paraesthesia (such as an irritating taste or irritation of the oral
Manual finishing:
mucosa) cannot be completely ruled out as a matter of principle.
To remove a framework from the blank and to finish the
Should you learn of any adverse effects – even questionable ones
framework, cross-cut tungsten-carbide cutters suitable for cutting
– you are requested to notify us.
resin or appropriate separating disks must be used. To avoid an imprecise fit of the completed framework, subsequent to
Framework dimensions (anterior and posterior): Wall thickness, single crowns
1,0 mm
Margin thickness-Single crowns
0,2 mm
Wall thickness-Bridges
1,0 mm
Margin thickness-Bridges
0,2 mm
Connector cross section
Veneering: Not applicable.
Transport and storage:
Additional dimensional requirements for the anterior region: Number of pontics
framework avoid excessive heat during finishing and polishing.
Store dry. 1 9 mm2
Reuse: As each restoration or frameworks is a custom product for a specific patient and case, the product is not reusable in any
Additional dimensional requirements for the posterior region: Number of pontics Connector cross section Cantilever pontic at tooth position (only one pontic, up to one premolar width) Connector cross section for this cantilever pontic
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dental rehabilitation setting other than that for which it has been prescribed. In addition, the framework cannot be reused for 1 9 mm2 Kontraindiziert –
refabrication or any other subsequent therapeutic purpose.
Product description Cercon® base cast , Cercon® wax Product description Cercon® base cast:
Indications in the anterior and posterior segments:
Cercon® base cast blanks are made of polyurethane, which is a casting resin that leaves no residue. They are used in fabricating
• Depending on the properties of the CAD/CAM system and the casting alloy used.
frameworks for the conventional casting technique. Framework material
Polyurethan
Temporary cementation
No
Definitive cementation
–
Contraindications: • Cercon® base cast and Cercon® wax have not been approved for intraoral use.
Warnings: Known cross-reactions or interactions of this medical product
Product description Cercon® wax: Cercon® wax blanks are blanks made of a milling wax that leaves no residue after firing. Shey are used in fabricating frameworks for the casting technique.
with other medical products or material already present in the oral environment must be taken into consideration by the dentist in charge when selecting this medical product. Processing Cercon® base cast / Cercon® base cast disk / Cercon® wax will result in the release of dust and chips that may
Framework material
Wax
Temporary cementation
No
Definitive cementation
–
cause irritation of the eyes, skin or respiratory passages. Provide a sufficient local workspace vacuum throughout. For safety requirements while burning out the material, please consult the pertinent information in the Cercon® base cast Instructions for Use. When burning out Cercon® wax from the casting mould, observe the same safety precautions as for conventional wax
Using Cercon® brain/Cercon® brain expert, your restorations and frameworks are individually fabricated to your digital design specifications such as anatomic shape, framework wall thickness and connector diameter or cementing gap.
casting molds (removing wax fumes by vacuum).
Precautions: Please note: • Keep product dust away from eyes • Avoid any contact with mucosa • After use, wash your hands and apply a
Always use the most current version of the design software, as this may influence the production of your restorations. – As per May 2011, the most current software version for
hand cream • When using, do not eat or drink • Do not swallow • Do not inhale dust particles during grinding • Use local suction and suitable mouth/face protection during grinding
Cercon® art is version 3.1.5. The safety and warning notes listed here describe how to use our system components in a safe and risk-free manner. Notify the dentist in charge of all factors described above if you use this medical product for a custom design and make sure to comply with the Instructions for Use and the pertinent Material Safety Data Sheets (MSDS).
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Product description Adverse effects: We are not aware of any risks or adverse effects related to Cercon® base cast / Cercon® wax. If properly processed and
Technical specifications: –
used, adverse effects of this product are highly unlikely. Should
Composition Cercon® base cast:
you learn of any adverse effects – even questionable ones – you
• Polyurethan
are requested to notify us. Composition Cercon® wax:
Framework dimensions (anterior and posterior): Wall thickness, single crowns
Margin thickness, single crowns
Wall thickness, bridges
Margin thickness, bridges
0.4 mm or as directed by the pertinent recommendations for the casting alloy used 0.2 mm or as directed by the pertinent recommendations for the casting alloy used 0.5 mm or as directed by the pertinent recommendations for the casting alloy used 0.2 mm or as directed by the pertinent recommendations for the casting alloy used
Connector cross section
• LD polyetylene homopol • Esters of hydrated colophon • Additives.
Processing with Cercon® brain expert: For processing Cercon® base cast disk or Cercon® wax disk, use Type 2 Cercon® brain expert cutters (PMMA). For detailed instructions, please refer to the Cercon® brain expert Instructions for Use.
Manual processing:
Additional dimensional requirements for the anterior region: Number of pontics
Microwax • Resins • Paraffins • Pigments • Polyethylene wax
Cercon® wax can be processed using a high-speed procedure, 2
9 mm2 or as directed by the pertinent recommendations for the casting alloy used
as the material can be burned-out without increasing in volume. To remove a framework from the blank and to finish the framework, cross-cut tungsten-carbide cutters suitable for cutting resin or appropriate separating disks must be used.
Additional dimensional requirements for the posterior region: Number of pontics Connector cross section Cantilever pontic at tooth position (only one pontic, up to one premolar width) Connector cross section for this cantilever pontic
To avoid an imprecise fit of the completed framework, subsequent to framework avoid excessive heat during finishing and polishing. 2
12 mm2 or as directed by the pertinent recommendations for the casting alloy used Up to second premolar
16 mm2 or as directed by the pertinent recommendations for the casting alloy used
Veneer Cercon® base cast / Cercon® wax: Not applicable.
Transport and storage: No special terms.
Reuse: As each restoration or frameworks is a custom product for a specific patient and case, the product is not reusable in any dental rehabilitation setting other than that for which it has been prescribed. In addition, the framework cannot be reused for refabrication or any other subsequent therapeutic purpose.
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Fascination
GB
28239/1112/DB Last revision: 12/2011
Prosthetics
DeguDent GmbH Rodenbacher Chaussee 4 63457 Hanau-Wolfgang Germany www.degudent.com
