Dec 06, 2021  
2021-2022 College Catalog 
    
2021-2022 College Catalog
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DLT 206LB - Dental Ceramics Lab

2 Credits, 6 Contact Hours
0 lecture periods 6 lab periods

This is the Lab portion of DLT 206 . Introduction to porcelain fused to metal techniques. Includes prescriptions and work authorizations; porcelain fused to metal restoration designs and preparation requirements; design, wax-up, and finishing of porcelain fused to metal substructure; metal conditioning; and building ceramic restorations. Also includes porcelain furnace operation, contouring fired porcelain, finishing, and soldering.

Prerequisite(s): DLT 104LB , DLT 104 , DLT 108 , DLT 202 , DLT 203 , and DLT 203LB  
Corequisite(s): DLT 206  
Information: Consent of program director is required before enrolling in this course.


Course Learning Outcomes
  1. Demonstrate the ability to perform all steps involved in the fabrication of porcelain fused to metal crowns and bridges.
  2. Demonstrate the ability to perform all steps involved in the repair of PFM substructure both pre and post porcelain application.

Performance Objectives:
  1. Interpret prescriptions and work authorizations for porcelain fused to metal restorations.
  2. Perform asepsis procedures of incoming impressions and restorations.
  3. Design metal substructures for porcelain fused to metal restorations.
  4. Create wax patterns for porcelain fused to metal restorations.
  5. Discuss functional characteristics of vitreous ceramics.
  6. Describe areas of possible porcelain failure and corrections in the substructure.
  7. Demonstrate how to wax pattern fabrication for porcelain fused to metal.
  8. Perform metal finishing of metal frameworks.
  9. Demonstrate how to condition metal surfaces to maximize ceramo-metal bonding.
  10. Discuss how to layer ceramics to correct contour.
  11. Demonstrate how to fire porcelain fused to metal restorations.
  12. Construct, fabricate, and finish porcelain margins.
  13. Prepare and contour fired porcelain.
  14. Expand and add on porcelain to correct for shrinkage.
  15. Prepare, stain, and glaze porcelain fused to metal restorations.
  16. Demonstrate how to polish exposed metal.
  17. Construct a soldering matrix.
  18. Perform pre-soldering repairs to porcelain fused to metal substructures.
  19. Perform post-soldering repairs to porcelain fused to metal bridges.
  20. Describe the process of dental porcelain and identify material comprising dental porcelains.

Outline:
  1. Prescriptions and Work Authorizations
    1. Interpretation of dental prescriptions and work authorizations
    2. Infection control and disinfecting procedures
    3. Impression evaluation
    4. Gypsum materials selection, manipulation, and safety procedures
  2. Porcelain Fused to Metal Restoration Designs
    1. Full crowns
    2. Splints
    3. Span bridges
    4. Cantilever bridges
    5. Pontics
    6. Connectors
    7. Hygienic considerations
    8. Limitations of vitreous dental ceramics and fracture avoidance
  3. Porcelain Fused to Metal Restoration Preparation Requirements
    1. Margin design metal support and porcelain shoulders
    2. Articulation and occlusal clearance
    3. Abutment parallelism and draw
  4. Design and Wax-Up of Porcelain Fused to Metal Substructure
    1. Coping thickness
    2. Metal support of porcelain
    3. Metal lingual and occlusion
    4. Porcelain butt joint
    5. Pontics and connectors
  5. Metal Finishing of Porcelain Fused to Metal Substructure
    1. Coping thickness
    2. Metal support of porcelain
    3. Metal lingual and occlusion
    4. Porcelain butt joint margins
    5. Pontics and connectors
  6. Metal Conditioning to Enhance Ceramo-Metal Bonding
    1. How porcelain bonds to metal
    2. Contouring
    3. Surface treatment
    4. Degassing
    5. Air abrasion
    6. Cleaning
  7. Building Ceramic Restorations
    1. Opaque
    2. Body
    3. Incisal
    4. Internal characterization
    5. Stains and glazes
  8. Porcelain Furnace Operation
    1. Porcelain furnace operation and safety
    2. Programming
    3. Firing cycles
    4. Atmosphere in furnace
    5. Furnace calibration
  9. Contouring Fired Porcelain
    1. Aesthetics
    2. Occlusion and contacts
    3. Porcelain adds to correct for shrinkage
  10. Finishing Porcelain Fused to Metal Restorations
    1. Polishing exposed metal
    2. Final seating
  11. Pre-and Post-Soldering
    1. Burnout, torch, techniques, and safety procedures
    2. Matrixes and foils
    3. Fluxes
    4. Solder selection
    5. Solder flow
    6. Soldering in a porcelain furnace


Effective Term:
Full Academic Year 2017/18



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