Affinity™ Crystal Matrix Impression Material

Affinity™ Crystal Matrix Impression Material

Affinity Crystal is an advanced silicone matrix material you can light-cure through. Designed for easy fabrication of temporary veneers, Affinity Crystal is the only matrix material to utilize branched resin chemistry, resulting in greater procedural efficiency, higher tear strength, and the most predictable results for accurate provisional restorations.


AffinityCrystal matrix impression material is ultra-durable, and easy to place. Its transparency allows the clinician to control flash formation, both interproximal and gingival, by visually verifying seating and adaptation of the filled matrix. Voids and air bubbles in the temporary composite material can also be detected easily.

With a working time of 45 seconds and intraoral cure time that can be as short as 90 seconds (for a maximum procedure time of only 2:15 minutes), Affinity Crystal is far more efficient and accurate than traditional procedures using putty, alginate, and vacuum splints.

  • Advanced silicone matrix material you can light-cure through
  • Prevents formation of interproximal and gingival flash
  • Transparent formula facilitates proper seating and detection of voids and air bubbles
  • Outstanding durability and tear strength
  • Ideal working and setting times
  • More efficient than traditional procedures using putty, alginate, and vacuum splints.

Clinical Technique

Dentistry and photography courtesy of Dr. Len Boksman and Dr. Brad Carson.

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Two mottled centrals with a diastema to be treated with porcelain veneers. Length of #8 to be increased with electro surgery.

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Fill a clear, non-perforated tray with Affinity Crystal.

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Plastic tray and Affinity Crystal on diagnostic stone model and leave to cure (1:30 minutes).

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Affinity Crystal trimmed on labial 5mm past gingival margin and lingually 1mm past anticipated lingual cavo-surface margin.

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Syringe a thixotropic flowable material directly into the facial/internal aspect of the clear matrix. Start at the incisal edge, working toward the cervical.

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Spot etch preps for retention. If there are more than two preps, spot etch alternate teeth.

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Gently place the matrix intraorally and adapt with both light incisal and labial pressure. Light-cure each preparation from the facial side of the matrix for 5 seconds per preparation. Remove the matrix.

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Flash will be minimal, any excess will flow over the cervical margin and can be easily removed with a bladed instrument. Light-cure again for 20 seconds/unit.

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Temporary veneers shown with excess flash peeled off.

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Apply Glisten Provisional Resin Glaze and light-cure.

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Final temporary veneers.


Instructions For Use / SDS

Click here to view the Affinity Crystal Instructions for Use / SDS.

Product Configurations

Affinity Crystal

  • 2-50mL cartridges, instructions/SDS
    • with mixing tips
  • 6-50mL cartridges instructions/SDS
    • with mixing tips
  • 12-50mL cartridges, instructions/SDS
    • without mixing tips


What are the working and set times of both Affinity regular set viscosities and fast set?2019-05-07T15:45:35-04:00

The working time of Affinity Regular Set material is 1:45 mins with a setting time of 2:30 mins.
Affinity Fast Set materials have a working time of 1:10 mins and a set time of 1:45 mins.

How is Affinity different from other impression materials?2019-05-07T15:46:24-04:00

Only Affinity uses branched resin chemistry for 3-dimensional cross-linking resulting in a higher tear strength, refined fillers, and an even distribution of surfactant. Other impression materials use linear resin chemistry with an uneven distribution of surfactant resulting in less accurate impressions that are more prone to tearing of the thin interproximal and sulcus fins.

I really like my light body from another brand. Can I use Affinity Heavy Body (or other Affinity Tray Materials) and my light body together?2019-05-07T15:47:55-04:00

Light and heavy body materials from another brand may be mixed but strict attention must be paid to the working and set times as they need to mimic or exceed Affinity’s.

How can I prevent air bubbles in my wash material?2019-05-07T15:48:11-04:00

Always keep the tip of the mixing tip fully immersed in the Light Body fully as it is syringed around the prep sites.

I’m having difficulty loading Affinity InFlex into Quad-Trays. Are there any tips that will help?2019-05-07T15:48:27-04:00

It is important to work quickly when loading Quad-Trays. Dispense Affinity InFlex in an S-pattern onto the non-prep side after running a bead of material around the periphery of the tray. Immediately turn the Quad-Tray over and repeat on the prep side.

Affinity sets more quickly compared to what I was using before. What can I do?2019-05-07T15:48:40-04:00

If using Fast Set, switch to Affinity Regular Set impression material. Do not attempt to adjust the temperature of the material in order to slow down the set.


Megan Shelton
Affinity Crystal provides consistency and predictability to my workflow for injectable resin veneer and onlay procedures. The clarity is ideal for ensuring complete adaptation and seating in and out of the mouth and to allow for photo polymerization of the resin through the matrix.

– Megan Shelton, DMD

Dr. Elliot Mechanic
Affinity Crystal is easy to trim and duplicates the patient’s dentition and embrasure areas precisely. It’s my matrix material of choice for veneers because it provides enduring water-clear transparency, without turning yellow.

– Bob Margeas, DDS

Dr. Elliot Mechanic
Affinity Crystal silicone matrix material and a clear impression tray allow me to visualize accurate placement provide sharp definition, and a well-fitting provisional restoration that requires very little finishing.

– Dr. Elliot Mechanic

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