INDIAN DENTAL ACADEMY
Leader in continuing dental education
www.indiandentalacademy.com
www.indiandentalacademy.com
METAL CERAMICS
METAL FREE CERAMICS
www.indiandentalacademy.com
General ClassificationGeneral Classification
1. Castable ceramics
2.Conventional powder ceramics
3. Pressable ceramics
4.I...
Castable Ceramics :
These products are supplied as solid ceramic
ingots, which are used for fabrication of cores or
full c...
www.indiandentalacademy.com
www.indiandentalacademy.com
Dicor shaded cements :
www.indiandentalacademy.com
Powder Slurry Ceramics :
Supplied as powders to which the technician adds
distilled water to produce a slurry, which is bu...
Pressable Ceramics :
Supplied as ingots, these product are melted at
higher temperatures and pressed into a mould
using a ...
LEUCITE REINFORCED GLASS
CERAMICS
Leucite – KAlSi2O6
Reinforcing phase due to tangential stresses it
creates within the po...
Mechanical Strength is Insufficient for
construction of All Ceramic Bridges
Crowns
Inlays
Veneers
Leucite containing mater...
www.indiandentalacademy.com
HOT PRESSED CERAMIC
Ceramic is heated to a
specified temperature and
forced under pressure to fill
a cavity in a refractor...
1180 degrees over a period1180 degrees over a period
of 45minof 45min
High Degree of Marginal Fit can be AchievedHigh Degr...
Infiltrated Ceramics :
These are glass infiltrated core ceramics. This
involves slipcasting technique for making the
core,...
Most Translucent
Glass infiltrated
Magnesium Aluminum Oxide core for Improved
Translucency
The strength of in ceram is abo...
INCERAM ZIRCONIA
Glass-infiltrated Alumina with 35% partially stabilized Zirconia
core
Good Marginal Fit
High strength of ...
Zirconia:
 Principle of strengthening by the
incorporation of a crystalline material that is
capable of undergoing a chan...
 Principle of
transition
strengthening(left
) and a scanning
electron
micrograph photo
of a crack (next to
the red line) ...
Machinable Ceramics
These products are supplied as ingots in various
shades and are milled into desired form. These
machin...
Classification:
a ceramic restoration
fabricated by use of a
computer aided design -
computer aided milling
a process of m...
CAD-CAM
 DCS–PRESIDENT -1991
 AUTO MILL – 1994
 CEREC 2 – 1994
 CEREC 3 – 2000
 Procera all Ceram
System.
COPY MILLIN...
Types of CAD – CAM Devices:
 DIRECT:
Fully integrated CAD – CAM devices for chair
side restorative approach. CAD & CAM
st...
Cercon(Dentsply) and Lava (3M ESPE)
Zirconia Core Ceramics
CERCON, DCS-PRESIDENT
White Colored Core limit their indication...
CERCON SYSTEM
Conventional Waxing
Techniques
DCS-PRESIDENT & LAVA systemsDCS-PRESIDENT & LAVA systems
CAD TechnologyCAD Te...
CEREC SYSTEMS
(Seimens, Germany )
Utilizes CAD-CAM technology
 CEREC 2 System - 1994.
 CEREC 3 SYSTEM -2001
www.indiande...
CEREC 2 SYSTEM
CAD - CIM
COMPUTER INTEGRATED MILLING
The Marginal Fit and Accuracy of restorations is
Superior to CEREC
OC...
CEREC 2 OCCLUSAL MORPHOLOGY MACHINEDOCCLUSAL MORPHOLOGY MACHINED
www.indiandentalacademy.com
CEREC 3
Network and
Multimedia ready
combination with an
Intraoral Color Video
Camera
OR
Digital Radiographic
Unit
www.ind...
Fabrication of restorations Accelerated
(24 min.-27% time saving)
Rapid occlusal and functional registration is possible
a...
www.indiandentalacademy.com
FORM GRINDING UNITFORM GRINDING UNIT
Greater DetailGreater Detail than Cerec 2than Cerec 2 and fitted with oneand fitted w...
Intra Oral 3 Dimensional Scanning
Camera
Optical impression recorded with Single Exposure
from Single Viewing Line, repres...
www.indiandentalacademy.com
www.indiandentalacademy.com
Materials used with
CEREC’s:
 Dicor MGC*(Machinable Glass Ceramic)(Dentsply):
Vita Mark II (Vident
www.indiandentalacadem...
Materials used with
CEREC’s: Vita Mark II (Vident):
These contain sanidine (KALSi3O8) as a major
crystalline phase within...
Materials used with
CEREC’s:
 Vita IN-Ceram Blanks (Vita Zhanfabrik):
These are third generation blanks from Vita.
 The ...
Milling process - - - - - - - - - - - Completed ceramic core
www.indiandentalacademy.com
CEREC MILLING
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www.indiandentalacademy.com
PROCERA SYSTEM
(Nobel Biocare,Sweden)
Procera Scanner
scans the surface
of the prepared
tooth
www.indiandentalacademy.com
Transmits theTransmits the
information to ainformation to a
computer controlledcomputer controlled
design station, wherede...
The dental laboratories which decide to useThe dental laboratories which decide to use
the technique of Procera invest in ...
The coping is then designed on theThe coping is then designed on the
computer using the CADD (Computer Aidedcomputer using...
Using a unique software program fromUsing a unique software program from
Procera, the dental technician can use a 3DProcer...
The Procera coping has the ability toThe Procera coping has the ability to
transmit light without becomingtransmit light w...
Procera Allceram – Alumina based
( Nobel Biocare)
99.9 % Aluminum Oxide
Densely sintered, high purity alumina core on whic...
Small defects caused by machining are eliminated
during sintering.
0.4 mm cores are used for esthetically critical crowns
...
Strength is twice that of In-Ceram and five
times that of Empress
Anterior & Posterior Crowns
Veneers
Onlays
Inlays.
www.i...
PROCERA-ZIRCONIA BASED
Flexural strength TWICE that of Alumina
based
CAD-CAM
Ideal in areas of maximum strength
SINGLE UNI...
YTTRIUM TETRAGONAL ZIRCONIA
POLYCRYSTALS (Y-TZP) BASED
MOST RECENT
Excellent Mechanical Properties and
Biocompatibility
Ea...
Yttrium oxide is a stabilizing oxide added to
pure zirconia to stabilize it at room
temperature and to generate a multipha...
Y-TZP cores are Glass Free
Do not exhibit
SUB CRITICAL CRACK PROPAGATIONSUB CRITICAL CRACK PROPAGATION.
Flexural strength ...
Scanning device
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Controlled shaping of spacer. Overall design.
Constant monitoring of connector cross section. Pontic shaping
www.indianden...
Parallel milling with two tools:
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High speed milling of copings and bridge frame work.
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Completed bridge framework
www.indiandentalacademy.com
Cercon can be used in cases of multipleCercon can be used in cases of multiple
pontics in a row including posterior teeth....
cercon CAM or CAD-CAM System
cercon eye cercon art
cercon heatcercon cleancercon brain
cercon hardware
cercon smart ceramics – CAM
www.indiandentalacademy.com
Cover the wax up with scan powder
www.indiandentalacademy.com
separating the frame work
• the not sintered
material shows a
chalky consistence
• first the frame-
work has to be
separat...
Cercon heat
www.indiandentalacademy.com
Units are place in the Cercon Heat. The temperature goes up
to 13500
C and holds for 2 hours.
• Put the crown or the frame...
Always use water-cooled turbines
for grinding the sintered
frameworks
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Fit the frame work
The framework should be sandblasted with
110 µm Al2O3 and a pressure of 2,5 bar
carefully except for the margins and clean...
Veneering with Cercon Ceram KISS
www.indiandentalacademy.com
Cercon SMART CERAMICS
PFM Bridge restoration with
insufficent margins on the
teeth 12 to 21.
Preparation of the teeth for ...
Cercon SMART CERAMICS
Teeth 13 and 12 with multiple and
extensive insufficent composit
restorations.
Set-up of the teeth 1...
Cercon Zirconia is unique among dentalCercon Zirconia is unique among dental
ceramics in that it exhibits a physical prope...
Manufactured using a computer controlledManufactured using a computer controlled
milling machine, these restorations aremi...
CELAY* System
MikronaTechnologies
Switzerland.
www.indiandentalacademy.com
Introduction:
 The Celay* is a well hand operated system
that represents an interesting alternative to
CAD – CAM system f...
Ceramic Blanks:
www.indiandentalacademy.com
Procedure:
www.indiandentalacademy.com
LavaTM
Crowns & Bridges
www.indiandentalacademy.com
• The processing of Zirconia effects the
clinical requirements for a dental restorations
• Excellent marginal fit.
• Good ...
Marginal Fit
Greenbody state
Exact and reproducible sintering parameters
Homogeneity of the material
No deformation during...
 Colored with liquid chemistry
 Developed together with Zirconia
 8 different shades
 Characterized by different absor...
 Mechanical/chemical bonding
 Coefficient of thermal expansion adjusted to the core
material
 No pretreatment of surfac...
www.indiandentalacademy.com
LavaTM
Zirconia
 Precise fit
 Most important to doctors1
 Exceptional marginal fit2,3,4
 Proven strength
 Proven High...
Lava™ Zirconia: Esthetics
8 Shades
Available in 8 shades--matched to
VITA® Classic Shade Guide
 Patented substructure sha...
Possible Indications withPossible Indications with
the Lava™ Systemthe Lava™ System
Crowns (anterior andCrowns (anterior ...
Quelle: Universität Frankfurt/Main Zahnarzt: P. Weigl Zahntechnik: E. Krenz
www.indiandentalacademy.com
Quelle: Universität Frankfurt/Main Zahnarzt: P. Weigl Zahntechnik: E. Krenz
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Quelle: Universität Frankfurt/Main Zahnarzt: P. Weigl Zahntechnik: E. Krenz
www.indiandentalacademy.com
Quelle: Universität Frankfurt/Main Zahnarzt: P. Weigl Zahntechnik: E. Krenz
www.indiandentalacademy.com
Quelle: Universität Frankfurt/Main Zahnarzt: P. Weigl Zahntechnik: C. Fischer
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Quelle: Universität Frankfurt/Main
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Zahnarzt: Dr. S. Rinke Zahntechnik: ZTM P. Finke
Zahnarzt: Dr. S. Rinke Zahntechnik: ZTM P. Finke
Zahnarzt: Dr. S. Rinke Zahntechnik: ZTM P. Finke
Zahnarzt: Dr. S. Rinke Zahntechnik: ZTM P. Finke
restauration with cercon and cergo
www.indiandentalacademy.com
Cercon Link
Cercon link
Attachment for
bridge framework
on divergent
posts
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Fixing the Cercon Link
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Fitting and veneering the
primary part
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Wax – up secondary part
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Cercon Link bridge fixed in the mouth
www.indiandentalacademy.com
www.indiandentalacademy.com
www.indiandentalacademy.com
New materials and techniques in dentalNew materials and techniques in dental
ceramics will continue to play a role inceram...
Thank you
For more details please visit
www.indiandentalacademy.com
www.indiandentalacademy.com
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  • We’ve talked about the differences in material --- but the next question is how do these differences manifest themselves clinically?
    The difference we see comes in:
    Marginal Fit:
    In a market research study, we found that marginal fit is the most important criteria to doctors.
    3M and others have performed numerous studies on fit. The studies have found that Lava consistently performs high on marginal fit.
    2. Strength and Long Term Stability:
    We have found flexural strengths of Lava zirconia to be very high – as high in some cases as 1400 MPa and consistently higher than 1000 MPa. However, many of the competitive zirconias are able to produce high initial flex strengths as well, so the gap is narrowing.
    What is even more important than the initial flex strength, is the LONG-TERM STABILITY of the material.
    3M has 5-yr. Clinical studies that show 100% survival rate.
    And finally- the translucency of the material. Lava zirconia shows natural translucency and unmatched esthetics.Additionally, Lava is unique with a patented substructure shading system producing 8 shades, which further increase the final esthetics.
    [1] 0828 In-Vitro Vertical Marginal Gap Comparison of CAD/CAM Zirconium Copings
    A.J.T. SHANNON, F. QIAN, P. TAN, and D. GRATTON, University of Iowa, Iowa City, USA
    [2] 3M ESPE Lava showed the lowest marginal and absolute marginal gap in comparison to Cercon and DCS
    A. Piwowarczyk, H.-C. Lauer (2006), Determining the marginal fit of CAD/CAM bridge frameworks, Pan European Federation Conference (PEF; CED) #0254
    [3] Lava 3-unit bridges showed smallest Marginal gap v. Etkon, Cercon brain, CerecInlab
    F. Beuer, T. Fischer, K.-J. ERdelt, H.-U. Aggstaller, K. Spiegl, W. Gernet; (2005) IADR #1336 and In vitro Study Marginal fit of Lava restorations; F. Beuer, T. Fischer, K.-J. ERdelt, H.-U. Aggstaller, K. Spiegl, W. Gernet, industrial report (2006)
    [4] Key Group Study, October 2006, “Accuracy of fit” listed as #1 out of 16 possible attributes. 134 total doctor responses
    [5] 3M ESPE Internal 3 pt- Bending Test – ISO 6872, July/September 2005
    [6] 3-unit posterior bridges, Start 2000, P. Pospeich, University of Homburg, Homburg
  • There are differences in substructure shading systems.
    The Lava shading system is based on a patented chemical process.
    Lava substructures are available in 8 shades and use a patented chemical process which results:
    A uniform coloring of the framework,
    Less influence to translucency,
    Show little or no reduction in strength with colored substructures.
  • Crowns (anterior and posterior)
    Splinted crowns (up to 4 abutments)
    All possibilities of 3- and 4-unit bridges
    5- and 6-unit bridges (max. 2 pontics in posterior region, max. 4 pontics in anterior region)
    Inlay bridges
    Maryland bridges
    Cantilever bridges (with the pontic maximally on the second premolar (OOX, OXOX, OOOX)
    Primary copings
  • Copy of metal free ceramics/ dentistry work

    1. 1. INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
    2. 2. METAL CERAMICS METAL FREE CERAMICS www.indiandentalacademy.com
    3. 3. General ClassificationGeneral Classification 1. Castable ceramics 2.Conventional powder ceramics 3. Pressable ceramics 4.Infiltrated ceramics 5. Machinable ceramics www.indiandentalacademy.com
    4. 4. Castable Ceramics : These products are supplied as solid ceramic ingots, which are used for fabrication of cores or full contour restorations using a lost wax and centrifugal casting technique. Generally, one shade of material is available. Which is covered by conventional feldspathic porcelain or is stained to obtain proper shading and characterization of the final restoration. e.g. DICOR (Corning glass, Dentsply). CERAPEARL (Bioceram, Kyocera) www.indiandentalacademy.com
    5. 5. www.indiandentalacademy.com
    6. 6. www.indiandentalacademy.com
    7. 7. Dicor shaded cements : www.indiandentalacademy.com
    8. 8. Powder Slurry Ceramics : Supplied as powders to which the technician adds distilled water to produce a slurry, which is build up in layers on a die material to form the contours of the restoration. The powders are available in different shades and translucencies, and are supplied with characterizing stains and glazes. e.g. OPTEC H.S.P (Jeneric/Pentron) DUCERAM L.F.C (Ducera Inc) Vita Hi-Ceram (Vita Zahnfabrik) www.indiandentalacademy.com
    9. 9. Pressable Ceramics : Supplied as ingots, these product are melted at higher temperatures and pressed into a mould using a lost wax technique. These pressed form can be made into full contour, or can be used as a substrate for layering technique. They are leucite based. e.g. IPS Empress I (Ivoclar vivadent) OPC (Optec Pressable Ceramic) ALCERAM (Cerestore, Innotek dental corp) IPS Empress 2* (Lithium disilicate)www.indiandentalacademy.com
    10. 10. LEUCITE REINFORCED GLASS CERAMICS Leucite – KAlSi2O6 Reinforcing phase due to tangential stresses it creates within the porcelain Varies from 35%-50% by volume Flexural strength – 120 Mpa www.indiandentalacademy.com
    11. 11. Mechanical Strength is Insufficient for construction of All Ceramic Bridges Crowns Inlays Veneers Leucite containing materials are IPS Empress (Ivoclar) IPS Finnesse . Authentic Pressable Ceramics www.indiandentalacademy.com
    12. 12. www.indiandentalacademy.com
    13. 13. HOT PRESSED CERAMIC Ceramic is heated to a specified temperature and forced under pressure to fill a cavity in a refractory mould. Marginal adaptation better than high strength alumina core materials. www.indiandentalacademy.com
    14. 14. 1180 degrees over a period1180 degrees over a period of 45minof 45min High Degree of Marginal Fit can be AchievedHigh Degree of Marginal Fit can be Achieved www.indiandentalacademy.com
    15. 15. Infiltrated Ceramics : These are glass infiltrated core ceramics. This involves slipcasting technique for making the core, and the contours of the restoration are obtained by individual layering and staining techniques. e.g. In-CERAM (Vita Zahnfabrik) Alumina Zirconia Spinell www.indiandentalacademy.com
    16. 16. Most Translucent Glass infiltrated Magnesium Aluminum Oxide core for Improved Translucency The strength of in ceram is about three times more greater than earlier alumina core materials. Marginal fit reported to be very good. INCERAM www.indiandentalacademy.com
    17. 17. INCERAM ZIRCONIA Glass-infiltrated Alumina with 35% partially stabilized Zirconia core Good Marginal Fit High strength of 700 Mpa Fracture toughness- 6-8 Mpa.m1/2 High level of opacity - not recommended for Anterior Prosthesis Posterior Crowns and FPDs, Post & Core, Implants Strongest And Toughest Of Available Ceramics www.indiandentalacademy.com
    18. 18. Zirconia:  Principle of strengthening by the incorporation of a crystalline material that is capable of undergoing a change in crystal structure when placed under stresses.  This crystalline material is usually termed as Partially Stabilized Zirconia(PSZ).  The energy required for the transformation of PSZ is taken from the energy that allows the crack to propagate.  One drawback of PSZ is that its refractive index is much higher than that of the surrounding glass matrix. www.indiandentalacademy.com
    19. 19.  Principle of transition strengthening(left ) and a scanning electron micrograph photo of a crack (next to the red line) that is running through the infiltration glass of the substructure material and stopped (head of the arrow) by a zirconium oxide grain (whit color). www.indiandentalacademy.com
    20. 20. Machinable Ceramics These products are supplied as ingots in various shades and are milled into desired form. These machined restorations can be stained and glazed to obtain desired characterization. www.indiandentalacademy.com
    21. 21. Classification: a ceramic restoration fabricated by use of a computer aided design - computer aided milling a process of milling a structure using a device that traces the surface of a metal, ceramic or a polymer pattern and transfers the traced spatial positions to a cutting station. C A D -C A M C e r a m ic s C o p y -M il l e d C e r a m ic s M ac h in able C er a m ic s www.indiandentalacademy.com
    22. 22. CAD-CAM  DCS–PRESIDENT -1991  AUTO MILL – 1994  CEREC 2 – 1994  CEREC 3 – 2000  Procera all Ceram System. COPY MILLING  CELAY – 1991  PRO CAM - 1996 COPY MILLING and CAD-CAMCOPY MILLING and CAD-CAM www.indiandentalacademy.com
    23. 23. Types of CAD – CAM Devices:  DIRECT: Fully integrated CAD – CAM devices for chair side restorative approach. CAD & CAM stations are located at the dental office.  INDIRECT: System that consists of several modules with at least, distinctive CAD & CAM stations. www.indiandentalacademy.com
    24. 24. Cercon(Dentsply) and Lava (3M ESPE) Zirconia Core Ceramics CERCON, DCS-PRESIDENT White Colored Core limit their indications from an esthetic standpoint. LAVA Core Relatively Translucent and at the same time may Mask Underlying Discolored Abutments. www.indiandentalacademy.com
    25. 25. CERCON SYSTEM Conventional Waxing Techniques DCS-PRESIDENT & LAVA systemsDCS-PRESIDENT & LAVA systems CAD TechnologyCAD Technology && Different Features and Design Options.Different Features and Design Options. www.indiandentalacademy.com
    26. 26. CEREC SYSTEMS (Seimens, Germany ) Utilizes CAD-CAM technology  CEREC 2 System - 1994.  CEREC 3 SYSTEM -2001 www.indiandentalacademy.com
    27. 27. CEREC 2 SYSTEM CAD - CIM COMPUTER INTEGRATED MILLING The Marginal Fit and Accuracy of restorations is Superior to CEREC OCCLUSAL MORPHOLOGY MACHINED www.indiandentalacademy.com
    28. 28. CEREC 2 OCCLUSAL MORPHOLOGY MACHINEDOCCLUSAL MORPHOLOGY MACHINED www.indiandentalacademy.com
    29. 29. CEREC 3 Network and Multimedia ready combination with an Intraoral Color Video Camera OR Digital Radiographic Unit www.indiandentalacademy.com
    30. 30. Fabrication of restorations Accelerated (24 min.-27% time saving) Rapid occlusal and functional registration is possible and ACCURATE OCCLUSION established Eliminates waiting periods for image adjustment, data storage , matching of two optical impressions in construction of occlusal surfaces with correlation and functional modes. www.indiandentalacademy.com
    31. 31. www.indiandentalacademy.com
    32. 32. FORM GRINDING UNITFORM GRINDING UNIT Greater DetailGreater Detail than Cerec 2than Cerec 2 and fitted with oneand fitted with one CylindricalCylindrical and oneand one TaperedTapered diamond rotatorydiamond rotatory tool andtool and controlled withcontrolled with radio communicationradio communication from the control unit independent of its location.from the control unit independent of its location. The next restoration can be designedThe next restoration can be designed while the first is being milledwhile the first is being milled www.indiandentalacademy.com
    33. 33. Intra Oral 3 Dimensional Scanning Camera Optical impression recorded with Single Exposure from Single Viewing Line, representing the Preparation and Insertion Axes respectively in a Fraction of a second without Reference Markings on the Teeth and is Reproducible. www.indiandentalacademy.com
    34. 34. www.indiandentalacademy.com
    35. 35. www.indiandentalacademy.com
    36. 36. Materials used with CEREC’s:  Dicor MGC*(Machinable Glass Ceramic)(Dentsply): Vita Mark II (Vident www.indiandentalacademy.com
    37. 37. Materials used with CEREC’s: Vita Mark II (Vident): These contain sanidine (KALSi3O8) as a major crystalline phase within a glassy matrix. www.indiandentalacademy.com
    38. 38. Materials used with CEREC’s:  Vita IN-Ceram Blanks (Vita Zhanfabrik): These are third generation blanks from Vita.  The Spinell MgAl2O4.  The Alumina Al2O3.  The Zirconia ZrO2. www.indiandentalacademy.com
    39. 39. Milling process - - - - - - - - - - - Completed ceramic core www.indiandentalacademy.com
    40. 40. CEREC MILLING www.indiandentalacademy.com
    41. 41. www.indiandentalacademy.com
    42. 42. PROCERA SYSTEM (Nobel Biocare,Sweden) Procera Scanner scans the surface of the prepared tooth www.indiandentalacademy.com
    43. 43. Transmits theTransmits the information to ainformation to a computer controlledcomputer controlled design station, wheredesign station, where the Aluminum Oxidethe Aluminum Oxide copings arecopings are fabricated.fabricated. www.indiandentalacademy.com
    44. 44. The dental laboratories which decide to useThe dental laboratories which decide to use the technique of Procera invest in Procerathe technique of Procera invest in Procera Scanner. Using Procera® scanner and aScanner. Using Procera® scanner and a standard PC, the shape of the tooth can bestandard PC, the shape of the tooth can be registered with extremely high precision.registered with extremely high precision. Procera www.indiandentalacademy.com
    45. 45. The coping is then designed on theThe coping is then designed on the computer using the CADD (Computer Aidedcomputer using the CADD (Computer Aided Dental Design) program. This information isDental Design) program. This information is sent via the telecommunications networksent via the telecommunications network to a Procera production unit where theto a Procera production unit where the coping is produced.coping is produced. Procera system www.indiandentalacademy.com
    46. 46. Using a unique software program fromUsing a unique software program from Procera, the dental technician can use a 3DProcera, the dental technician can use a 3D (three-dimensional) technique to create crown(three-dimensional) technique to create crown designs for both teeth and implants.designs for both teeth and implants. The target for the development work that isThe target for the development work that is being done within Procera is to produce abeing done within Procera is to produce a comprehensive CAD/CAM system for allcomprehensive CAD/CAM system for all permanent prosthetics.permanent prosthetics. Procera www.indiandentalacademy.com
    47. 47. The Procera coping has the ability toThe Procera coping has the ability to transmit light without becomingtransmit light without becoming transparent. When combined with Proceratransparent. When combined with Procera AllCeram porcelain, these remarkableAllCeram porcelain, these remarkable esthetic characteristics provide a vitalesthetic characteristics provide a vital natural beauty and perfect shade blending.natural beauty and perfect shade blending. Procera www.indiandentalacademy.com
    48. 48. Procera Allceram – Alumina based ( Nobel Biocare) 99.9 % Aluminum Oxide Densely sintered, high purity alumina core on which low fusing porcelain is built Local dental lab scan the dies and the information is sent to centres via internet enabled oversized dies to be made. www.indiandentalacademy.com
    49. 49. Small defects caused by machining are eliminated during sintering. 0.4 mm cores are used for esthetically critical crowns on anterior teeth and first premolars. Flexural strength is 487-699 MPa Fracture toughness- 4.48 – 6 MPa.m1/2 www.indiandentalacademy.com
    50. 50. Strength is twice that of In-Ceram and five times that of Empress Anterior & Posterior Crowns Veneers Onlays Inlays. www.indiandentalacademy.com
    51. 51. PROCERA-ZIRCONIA BASED Flexural strength TWICE that of Alumina based CAD-CAM Ideal in areas of maximum strength SINGLE UNITS ONLY www.indiandentalacademy.com
    52. 52. YTTRIUM TETRAGONAL ZIRCONIA POLYCRYSTALS (Y-TZP) BASED MOST RECENT Excellent Mechanical Properties and Biocompatibility Early 1990s - Endodontic’ Dowels and Implant Abutments. www.indiandentalacademy.com
    53. 53. Yttrium oxide is a stabilizing oxide added to pure zirconia to stabilize it at room temperature and to generate a multiphase material known as Partially Stabilized Zirconia which gives it its High Initial Strength and Fracture Toughness www.indiandentalacademy.com
    54. 54. Y-TZP cores are Glass Free Do not exhibit SUB CRITICAL CRACK PROPAGATIONSUB CRITICAL CRACK PROPAGATION. Flexural strength ofFlexural strength of 900 to 1200 MPa900 to 1200 MPa DoubleDouble of Alumina-based Materialsof Alumina-based Materials 3 Times3 Times Lithium DiSilicate–based MaterialsLithium DiSilicate–based Materials www.indiandentalacademy.com
    55. 55. Scanning device www.indiandentalacademy.com
    56. 56. Controlled shaping of spacer. Overall design. Constant monitoring of connector cross section. Pontic shaping www.indiandentalacademy.com
    57. 57. Parallel milling with two tools: www.indiandentalacademy.com
    58. 58. High speed milling of copings and bridge frame work. www.indiandentalacademy.com
    59. 59. Completed bridge framework www.indiandentalacademy.com
    60. 60. Cercon can be used in cases of multipleCercon can be used in cases of multiple pontics in a row including posterior teeth.pontics in a row including posterior teeth. Cercon is conventionally cemented withCercon is conventionally cemented with glass ionomer cement or Enamel-dentinglass ionomer cement or Enamel-dentin adhesive bonding system.adhesive bonding system. Fabricated with yttria-stabilized zirconia,Fabricated with yttria-stabilized zirconia, CerconCercon Cercon SMART CERAMICS www.indiandentalacademy.com
    61. 61. cercon CAM or CAD-CAM System cercon eye cercon art cercon heatcercon cleancercon brain cercon hardware
    62. 62. cercon smart ceramics – CAM www.indiandentalacademy.com
    63. 63. Cover the wax up with scan powder
    64. 64. www.indiandentalacademy.com
    65. 65. separating the frame work • the not sintered material shows a chalky consistence • first the frame- work has to be separated from the frame • therefore sandblasting with 50 µm Al2O3 with 1 bar pressure has to be applied onto the gates www.indiandentalacademy.com
    66. 66. Cercon heat www.indiandentalacademy.com
    67. 67. Units are place in the Cercon Heat. The temperature goes up to 13500 C and holds for 2 hours. • Put the crown or the framework with the occlusal side on the furnace tile. • Push the start button and the sintering process begins. • After 6.5 hours the shrinking process is done. www.indiandentalacademy.com
    68. 68. Always use water-cooled turbines for grinding the sintered frameworks www.indiandentalacademy.com
    69. 69. Fit the frame work
    70. 70. The framework should be sandblasted with 110 µm Al2O3 and a pressure of 2,5 bar carefully except for the margins and cleaned with steam water www.indiandentalacademy.com
    71. 71. Veneering with Cercon Ceram KISS www.indiandentalacademy.com
    72. 72. Cercon SMART CERAMICS PFM Bridge restoration with insufficent margins on the teeth 12 to 21. Preparation of the teeth for a zirconia all-ceramic restoration. After the insertion of the Cercon all-ceramic bridge. www.indiandentalacademy.com
    73. 73. Cercon SMART CERAMICS Teeth 13 and 12 with multiple and extensive insufficent composit restorations. Set-up of the teeth 13 and 12with quartz fiber posts, composit and preparation. One week after the insertion of the Cercon all-ceramic crowns. www.indiandentalacademy.com
    74. 74. Cercon Zirconia is unique among dentalCercon Zirconia is unique among dental ceramics in that it exhibits a physical propertyceramics in that it exhibits a physical property calledcalled “transformation toughness.”“transformation toughness.” WhenWhen stress is applied to the material, it goesstress is applied to the material, it goes through an instantaneous phasethrough an instantaneous phase transformation that acts as a clamp to preventtransformation that acts as a clamp to prevent crack development. This phenomenon is ofcrack development. This phenomenon is of great importance in fatigue situations such asgreat importance in fatigue situations such as those caused by chewing forces onthose caused by chewing forces on restorations.restorations. Cercon www.indiandentalacademy.com
    75. 75. Manufactured using a computer controlledManufactured using a computer controlled milling machine, these restorations aremilling machine, these restorations are machined to precise tolerances, withmachined to precise tolerances, with outstanding fit and marginal integrity, andoutstanding fit and marginal integrity, and of course STRENGTH!of course STRENGTH! Cercon www.indiandentalacademy.com
    76. 76. CELAY* System MikronaTechnologies Switzerland. www.indiandentalacademy.com
    77. 77. Introduction:  The Celay* is a well hand operated system that represents an interesting alternative to CAD – CAM system for the dental laboratory.Marginal accuracy seems to be good ,a little better than the Cerec 2 system. www.indiandentalacademy.com
    78. 78. Ceramic Blanks: www.indiandentalacademy.com
    79. 79. Procedure: www.indiandentalacademy.com
    80. 80. LavaTM Crowns & Bridges www.indiandentalacademy.com
    81. 81. • The processing of Zirconia effects the clinical requirements for a dental restorations • Excellent marginal fit. • Good compatibility with oral tissues. www.indiandentalacademy.com
    82. 82. Marginal Fit Greenbody state Exact and reproducible sintering parameters Homogeneity of the material No deformation during sintering process 2 µm Sintered Material www.indiandentalacademy.com
    83. 83.  Colored with liquid chemistry  Developed together with Zirconia  8 different shades  Characterized by different absorption spectra matched to the Vita Classic  Real different colors instead of dilution of same coloring components Staining Lava FrameLava Frame Shade LiquidShade Liquid FS 1FS 1 FS 2FS 2 FS 3FS 3 FS 4FS 4 FS 5FS 5 FS 6FS 6 FS 7FS 7 Translation inTranslation in VITA ClassicVITA Classic ColorsColors A1A1 B1B1 B2B2 C1C1 A2A2 A3A3 A3,5A3,5 A4A4 B3B3 B4B4 C2C2 C3C3 C4C4 D2D2 D3D3 D4D4 www.indiandentalacademy.com
    84. 84.  Mechanical/chemical bonding  Coefficient of thermal expansion adjusted to the core material  No pretreatment of surfaces necessary Interface ZrO2 - Veneering SEM Picture Lava Ceram™ on Lava™ Internal measurement polycrystalline Lava™-ZrO2 Lava Ceram ™ Veneering porcelain Good wetting behavior at interface www.indiandentalacademy.com
    85. 85. www.indiandentalacademy.com
    86. 86. LavaTM Zirconia  Precise fit  Most important to doctors1  Exceptional marginal fit2,3,4  Proven strength  Proven High Strength – 1440 MPa 3-pt bend test5  100% survival rate in 5-yr clinical study6  Natural Esthetics  Natural translucency  Patented substructure system available in 8 shades 1 Key Group Study, October 2006, “Accuracy of fit” listed as #1 out of 16 possible attributes. 134 total doctor responses 2 A.J.T. SHANNON, F. QIAN, P. TAN, and D. GRATTON, University of Iowa, Iowa City, USA, 2007 3 A. Piwowarczyk, H.-C. Lauer (2006), Determining the marginal fit of CAD/CAM bridge frameworks, Pan European Federation Conference (PEF; CED) #0254 4 F. Beuer, T. Fischer, K.-J. ERdelt, H.-U. Aggstaller, K. Spiegl, W. Gernet; (2005) IADR #1336 and In vitro Study Marginal fit of Lava restorations; F. Beuer, T. Fischer, K.-J. ERdelt, H.-U. Aggstaller, K. Spiegl, W. Gernet, industrial report (2006) 5 3M ESPE Internal 3 pt- Bending Test – ISO 6872, July/September 2005 6 3-unit posterior bridges, Start 2000, P. Pospeich, University of Homburg, Homburg µ Mean Marginal Gap: Vertical Gap2 PFM PFM Lava Zirconia www.indiandentalacademy.com
    87. 87. Lava™ Zirconia: Esthetics 8 Shades Available in 8 shades--matched to VITA® Classic Shade Guide  Patented substructure shading system VITA is a registered trademark of VITA Zahnfabrik. Uniform coloring of the framework Minimal influence to translucency Minimal reduction in strength www.indiandentalacademy.com
    88. 88. Possible Indications withPossible Indications with the Lava™ Systemthe Lava™ System Crowns (anterior andCrowns (anterior and posterior)posterior) 3- and 4-unit bridges3- and 4-unit bridges 5- and 6-unit bridges5- and 6-unit bridges Inlay bridges*Inlay bridges* Maryland bridges*Maryland bridges* Cantilever bridges*Cantilever bridges* * Tests have proven: Lava™ Zirconia shows a sufficient strength for this indication. However, this type of indication overall can have a higher failure risk due to decementation and secondary caries regardless of manufacturer. Please refer to national and regional dental associations for more information. www.indiandentalacademy.com
    89. 89. Quelle: Universität Frankfurt/Main Zahnarzt: P. Weigl Zahntechnik: E. Krenz www.indiandentalacademy.com
    90. 90. Quelle: Universität Frankfurt/Main Zahnarzt: P. Weigl Zahntechnik: E. Krenz www.indiandentalacademy.com
    91. 91. Quelle: Universität Frankfurt/Main Zahnarzt: P. Weigl Zahntechnik: E. Krenz www.indiandentalacademy.com
    92. 92. Quelle: Universität Frankfurt/Main Zahnarzt: P. Weigl Zahntechnik: E. Krenz www.indiandentalacademy.com
    93. 93. Quelle: Universität Frankfurt/Main Zahnarzt: P. Weigl Zahntechnik: C. Fischer www.indiandentalacademy.com
    94. 94. Quelle: Universität Frankfurt/Main www.indiandentalacademy.com
    95. 95. Zahnarzt: Dr. S. Rinke Zahntechnik: ZTM P. Finke
    96. 96. Zahnarzt: Dr. S. Rinke Zahntechnik: ZTM P. Finke
    97. 97. Zahnarzt: Dr. S. Rinke Zahntechnik: ZTM P. Finke
    98. 98. Zahnarzt: Dr. S. Rinke Zahntechnik: ZTM P. Finke
    99. 99. restauration with cercon and cergo www.indiandentalacademy.com
    100. 100. Cercon Link Cercon link Attachment for bridge framework on divergent posts www.indiandentalacademy.com
    101. 101. Fixing the Cercon Link www.indiandentalacademy.com
    102. 102. Fitting and veneering the primary part www.indiandentalacademy.com
    103. 103. Wax – up secondary part www.indiandentalacademy.com
    104. 104. Cercon Link bridge fixed in the mouth www.indiandentalacademy.com
    105. 105. www.indiandentalacademy.com
    106. 106. www.indiandentalacademy.com
    107. 107. New materials and techniques in dentalNew materials and techniques in dental ceramics will continue to play a role inceramics will continue to play a role in the provision of esthetic restorations.the provision of esthetic restorations. The dentist needs to update himselfThe dentist needs to update himself about the recent advances in dentalabout the recent advances in dental ceramics to ensure that correct choice isceramics to ensure that correct choice is made for each patientmade for each patientwww.indiandentalacademy.com
    108. 108. Thank you For more details please visit www.indiandentalacademy.com www.indiandentalacademy.com

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