bond-instructions-tnDo not use hydrofluoric acid (HF) etching, and do not use phosphoric acid to clean the restoration.

  1. Inspect the design of the restoration to verify a tight fit with minimal cement gap.
  2. Clean the polished restoration in an ultrasonic cleaner or steam cleaner.
  3. Blow dry the restoration gently with an air syringe.
  4. Trial fit the restoration.
  5. Adjust the restoration if needed.
  6. Finish and polish the restoration.
  7. Sandblast / air abrade the bonding surface with aluminum oxide (Al203) <50μm at 2 bars (30 psi).
  8. Clean the restoration with alcohol and dry. Verify that the surface is free of contamination, including milling debris, milling fluids, saliva, grease, acetone, fit checker, etc.
  9. Bond the restoration to the tooth with a light or dual-cured adhesive resin cement. Depending on cement, apply the appropriate primer or bonding agents. If no primer is recommended, apply silane to the bonding surface of the restoration according to the instructions provided with the silane.
  10. Always follow the instructions for resin based materials provided with the cement selected.

Light-curing should be used with thin veneers as dual-curing composites may cause a slight yellowing after curing. A microbrush glued to the veneer or a stick (adhesive) can be used as a retention tool. Fixing the veneer with a finger allows more uniform distribution of pressure during the adhesive cementation.

To download a PDF with current bonding instructions for just about all dental materials, click on the impage to the right or the download link below:

pdfcrystalultra-bonding-instructions-2014.pdf281.49 KB

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Crystal Ultra Specs

Physical Property Measurement
 Vickers Hardness (200 p)  710 MPa **
 Modulus of Elasticity 
(Young Modulus)
 10,000 MPa **
 Flexural Strength  175 MPa **
 Compressive Strength  480-500 MPa **
 Density  1.89 g/cm3
 Chemical Solubility  1.29 μg/cm3
 Water Absorption  16.94 μg/mm3
 Water Solubility  0.04 μg/mm3
 Biocompatibility  Confirmed
 Ceramic Filler  70.02% (wt)
 Color Stability  Confirmed
 Shade Consistency  Confirmed
 Surface Finish  Smooth
 Bond Strength  27-37 MPa