DHY 223 - Dental Materials Lab

1. Produce safe practice in the laboratory.
   1. Perform laboratory housekeeping practices.
   2. Appraise emergency equipment, procedures and assess first aid supplies.
   3. Locate material safety data sheets (M.S.D.S.) for dental products
2. Formulate infection control practices.
   1. Categorize the infectious, physical, and chemical hazards in a dental office
   2. Appraise the practice of universal precautions in dentistry.
   3. Prove the types of personal protective equipment (PPE) that must be used for the practice of dentistry in the operatory and laboratory and justify the criteria of selection.
   4. Rank the methods that may be used to prevent cross-contamination during distribution of dental supplies.
   5. Defend the significance of an office exposure control program and protocol for managing exposure to bloodborne pathogens for office personnel and the dental laboratory.
3. Incorporate use of the instruments of measure.
   1. Predict mass on a gram scale
   2. Assess use of a milliliter graduate and ruler
   3. Prove volume using a cubic centimeter graduate.
4. Generate care and use of dental equipment in the laboratory.
   1. The whip mix machine.
   2. The model trimmer
   3. The dental lab engine
   4. The dental lathes for wet and dry use
   5. The Sta-Vac machine
   6. The Triad machine
5. Compare and contrast impression materials and perform the manipulation technique for each product including:
   1. Wax and impression compound
   2. Zinc oxide-eugenol (ZOE)
   3. Agar or reversible hydrocolloid, alginate
   4. Polysulfides, condensation silicones, polyethers and addition silicones
6. Compare and contrast gypsum materials and perform the manipulation technique producing a variety of gypsum products to include:
   1. Materials: dental plaster, stone, and improved stone
   2. Products: study model, cast and die
7. Create an alginate impression on a student partner.
   1. Appraise the aspects of patient preparation for alginate impressions including appropriate tray criteria and use of rope wax if needed.
   2. Perform mixing of the alginate, loading, seating and removal of the tray to obtain acceptable alginate impressions.
   3. Critique the impressions to acceptability of laboratory standards.
8. Generate and trim a study model
   1. Assess the following laboratory procedures: a. use a gypsum product to pour a study model from an impression. b. trim the study model on the model trimmer using appropriate cast cuts for patient consultation and treatment planning
   2. Compare and contrast the two methods of diagnostic cast/study model fabrication.
   3. Critique the completed study model for diagnostic proficiency.
9. Formulate the application and manipulation of dental waxes.
   1. Compare and contrast pattern and processing dental waxes.
10. Formulate the application and manipulation of dental amalgam.
    1. Incorporate acceptable mercury hygiene practices.
    2. Perform by mixing and placing a dental amalgam restoration in a tooth cookie.
11. Compare and contrast the application and manipulation of dental materials used in removal prostheses, bleaching trays and a variety of oral appliances.
    1. Assess the different oral appliances used in the dental profession.
    2. Interpret the different thermoplastic materials used in the fabrication of oral appliances and critique their properties.
    3. Prove the steps involved in fabricating an oral appliance.
12. Compare and contrast the application and manipulation of adhesive and direct polymeric restorative materials.
    1. Evaluate the differences of the microanatomy of enamel and dentin regarding etching and bonding.
    2. Prioritize the properties of restorative resins.
    3. Interpret the differences between flowable and condensable composites.
13. Perform the application of a variety of abrasive polishing materials used in the clinical or laboratory setting.
    1. Produce the steps of amalgam polishing.
    2. Compare and contrast the rate of abrasion for clinical and laboratory procedures.
14. Compare and contrast the application and manipulation of a variety of dental cements.
    1. Critique the properties of Zinc oxide eugenol, zinc phosphate cement, polycarboxylate cement, glass ionomer cement, calcium hydroxide cement.
    2. Prove the mixing process and setting times for the cements stated above.
15. Compare and contrast the application and manipulation of a variety of provisional restorations.
    1. Prove the construction and placement of provisional restorations.
    2. Perform the procedure for the construction and placement of provisional restorations.