DENTCA Crown and Bridge

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DENTCA Crown and Bridge A1 | SprintRay Store

Use Case(s)

  • Crowns
  • Bridges
  • Temporary restorations

Comparable(s)

  • SprintRay Crown
  • SprintRay OnX
 

Instructions For Use


DENTCA Crown and Bridge is a light-curable polymerizable resin to fabricate, by additive manufacturing,
temporary crowns or bridges. The fabricated temporary crowns or bridges are an alternative to
preformed temporary crowns or bridges.
The fabrication of temporary crowns or bridges with DENTCA Crown and Bridge requires digital models
of crowns or bridges, a stereolithographic additive printer, and curing light equipment.


Intended Use for Canada customers
DENTCA Crown and Bridge is a light-curable polymerizable resin to fabricate, by additive manufacturing,
temporary crowns or bridges to be used for less than 30 days. * The fabricated temporary crowns or
bridges are an alternative to performed temporary crowns or bridges.
The fabrication of temporary crowns or bridges with DENTCA Crown and Bridge requires digital models
of crowns or bridges, a stereolithographic additive printer, and curing light equipment.
*The device is registered in Canada as class II which is used for less than 30 days.

  1. Digital crown or bridge model file with minimum thickness 2mm around the occlusal and
    shoulder area; STL format file
  2. Stereolithographic additive printer and its operation software;
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  3. Curing light equipment
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Specific Manufacturing Considerations

  1. Digital crown or bridge model file
    1. File format: STL file
    2. File size: less than 100 MB of each file
    3. File size should be upload-able in the 3D printer operation software.
  2. Stereolithographic additive printer
    1. Hardware
      1. Laser wavelength: 385 nm or 405 nm
      2. Light source
        ▪ Stereolithographic (SLA) method; laser with 25 mW < X < 250 mW
        ▪ Digital Light Processing (DLP) method; high power LED or lasers
      3. Build Volume: > 70 x 50 x 150 cm (Least fit one arch)
      4. Laser spot size (XY resolution): < 160 micron
      5. Build Speed: 1 – 1.5 cm/hr at 50 micron and 1.5 - 4 cm/hr at 100 micron
      6. Build Path: line drawing path or surface layer drawing path
    2. Features of Operations Software
      1. STL File Import
      2. Automatic Rotation and Placement
      3. Layer Slice for path inspection
      4. Auto and manual generation of supports
    3. Printing Parametersmceclip0.png
    4. Environmental Conditions
      1. Temperature: 18-30°C
      2. Relative Humidity: 30-90%
    5. Cleaning Kit
      1. Rinse bath and tubs, flush cutter, paper towels, squeeze bottle for IPA, Scraper
    6. Recommended Printer
      1. Zenith U Printer, MoonRay S100 and SprintRay Pro Printers, Asiga Max, Pro2 and Pro 4K Printers, Ackuretta DENTIQ (formerly known as FreeShape 120) and SOL Printers, WhipMix VeriBuild and VeriEKO Printers
  3. Recommended Curing light equipment (Post Curing Units)
    1. Flood Type Curing Equipmentimage.png
    2. Accessories
      1. USP Grade Glycerin
      2. Transparent glass container and 2 glass plates
      3. Heat protective gloves and silicone coated stainless steep tong
      4. thermocouple
  4. Notification
    1. The device specifications have been validated using the software, printers, and process parameters specified in this document. Any other printers, operation software and post-printing processes will be outside of the device specifications and the FDA clearance. Users shall follow this document to use the device.

Warnings:


DENTCA Crown and Bridge contains polymerizable monomers which may cause skin irritation (allergic contact dermatitis) or other allergic reactions in susceptible persons. If contact with skin, wash thoroughly with soap and water. If skin sensitization occurs, discontinue use. If dermatitis or other symptoms persist, seek medical assistance. Avoid inhalation or ingestion. High vapor concentration can cause headache, irritation of eyes or respiratory system. Direct contact with eyes may cause possible corneal damage. Long-term excessive exposure to the material may cause more serious health effects. Monitor air quality per OSHA standards.


Eye Contact: Immediately flush eyes with plenty of clean water for at least 20 minutes, and consult a physician. Wash the contacted area thoroughly with soap and water.

Inhalation: In case of exposure to a high concentration of vapor or mist, remove person to fresh air. Give oxygen or artificial respiration as required.


Ingestion: Contact your regional poison control center immediately.


BURN HAZARD: GLYCEROL BATH CAN REACH TEMPERATURES OF 90 oC (~200 °F) AND LEAD TO SEVERE BURNS. Only trained users should perform the glycerol curing step with caution and appropriate PPE. We also recommend placing a warning label on the window of the cure unit to alert all lab users to the potential hazard.

 

Precautions:

  1. When washing the printed crown and bridge with solvent or grinding the crown and bridge, it should be in a properly ventilated environment with proper protective masks and gloves
  2. Store DENTCA Crown and Bridge at 15 -25°C(60 - 77°F) and avoid direct sunlight. Keep container closed when it is not in use. Product shall not be used after expiration date.
  3. Expired or unused DENTCA Crown and Bridge should be completely cured or polymerized prior to disposal

 

Adverse Reactions:

  1. Direct contact with the uncured resin may induce skin sensitization in susceptible individuals
  2. Proper ventilation and personal protective equipment should be used when grinding crowns and bridge resins as the particulate generated during grinding may cause respiratory, skin, or eye irritation

 

Procedure to Fabricate Temporary Crown and Bridges


Printing Preparation

  1. Select the shade based on prescription. (Recommended to use the
    different resin tank for the different shade.)
  2. Open the 3D printer cover and fill the resin tank of the printer with fresh DENTCA
    Crown and Bridge resin  up to the required filling line by manufacturer. (When filling the resin
    into the resin tank, gloves and mask should be used.)
  3. Close the printer cover.

 

Printing

  1. Load the crown or bridge model file to be printed in printer operation software which
    printer manufacturer recommended.
  2. Use the printer operation software tool to rotate the model in order to locate the model in
    proper position to the build platform.
  3. For the crown or bridge model, rotate the tip of teeth to face the build platform
  4. Generate support sticks on the model using the recommended setting by printer provider. If
    the support is not enough, add supports on the model. (Avoid the support structures on the
    connection area between teeth.)
  5. Use layout tools to move the denture teeth to be evenly distributed
  6. Start printing.

Cleaning

  1. Detach the printed model from the build platform.
  2. Use a small flush cutter to remove the support sticks from the denture teeth.
  3. Wash the model with isopropyl alcohol.
  4. Use air blowing to dry the printed object or dry it at room temperature under ventilation
    system or open area.

Crown and Bridge Post Curing

  1. Smooth the support marks using a bur after washing the teeth with water and drying. 
  2. The printed one should be cured by soaking into the glycerin container for the required
    curing time under recommended post curing unit. (Glycerin temperature should be greater
    than 60°C and it is recommended the glycerin to be replaced every 80 hrs of running or
    every three months whichever first.) (For Dentalfarm PHOTOPOL A5408D, pre-heating the
    curing unit with glycerin for 2 hours before post-curing is required.)
  3. Take out the printed one from curing oven using coated tong (Be careful of hot glycerin!)
  4. Rinse the cured crowns and bridges with a water.
  5. Polish the crowns and bridges with wet polishing sand by conventional method if needs

 

We can help with that!

If you're experiencing difficulties or have questions about any of your SprintRay products, submit a support ticket or contact us at 800-914-8004

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