Sirona Cerec Inlab 4.1

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• Sirona Cerec Inlab 4.1

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• The system uses CAM/CAM technology, which means
  that the whole production of prosthetic work is
  controlled by computer
• Starting optical impression (scanning directly in
  the mouth with cerec AC unit with bluecam)
  instead of classical impression, designing
  anatomically shaped tooth, milling and finishing
  work.

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USED FOR

• Production of ceramics crowns
• Production of bridges
• Production of veneers
• Production of zirconium frameworks

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WHY?

• perfect fit (24 microns sensitivity)
• biocompatible material
• minimize the number of patient visits -
  productions crowns and brigdes and laminates in
  one visit
• top quality material
• absolute accuracy - long lifetime of work

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• individual part of my work

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the 3D impression of work for the upper jaw
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the lower jaw
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selection of teeth and the type of job
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bite registration
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finished bite registration
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determination of occlusal plane
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trimming of stubs
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draw margin-we can use manual or auto
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draw margin
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rotation model

• for determination of correct axis of the tooth

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right
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wrong-because there are many undercuts-red color
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• setting parameters
• http//td.sirona.com/pdf5C6375922.pdf

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ANTERIOR BASIC SHAPE CROWNThere we choose shape
of crown for example adult, juvenile, asian
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SPACER Possibility for setting the space for the
fastening material below the restoration-cement.
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OCCLUSAL MILLING OFFSET Apply or remove material
in the occlusal direction over the entire
occlusal surface.
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PROXIMAL CONTACTS STRENGTH Set the thickness of
the approximal contacts.
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OCCLUSAL CONTACTS STRENGTH Set the thickness of
the occlusal contacts.
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MINIMAL THICKNESS RADIAL Set the minimum wall
thickness in the horizontal direction. The
software tries not to fall below this thickness
when calculating the restoration suggestions.
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MINIMAL THICKNESS OCCLUSALSet the minimum wall
thickness in the occlusal direction.
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MARGIN THICKNESS

• Reinforce restoration margins with additional
  material. Simplifies handling of the
  restoration Prevents splitting of the material
• The additional material can be milled off
  manually before inserting the restoration.
• Can be switched on and off

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REMOVE UNDERCUTS Undercuts within the
preparation margin are blocked out in the
restoration bottom.
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after setting the parameters followed by
automatic selection of teeth shape
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design
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FOR MODELING WE USE
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APPLY MATERIAL
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REMOVING MATERIAL
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SMOOTHING
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control points of contact
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Finished work
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now we must choose the material which will be
used for milling finished work
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TYPES OF MATERIAL

• Esthetic ceramics-luminosilicate glass
• Structural ceramics
• A)low glass content
• B)no glass content
• -polycrystalline-alumina, zirconia

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ceramic block
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next step is milling in this device
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milling
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finished workfor example veener and zirconium
framework
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FINISHED WORK IN MOUTH