Chapter 47 Laboratory Materials and Procedures CUSTOM TRAYS Student Name:

Chapter 47 Laboratory Materials and Procedures CUSTOM TRAYS Student Name: Date: 1. List 3 criteria for creating custom impression trays. 120 13 2. Define a custom tray. 12 3. a) What are the varieties of materials that can be used to make a custom tray. 13 b) List three reasons or procedures that would require the use of a custom tray. 13 1. 2. 3. 4. List 4 types of impression materials used in conjunction with a custom tray. 14 1. 2. 3. 4. Medix School-Health Care Career Training- Dental Assisting Program : Term I 5. a) State the reason for using a tray adhesive. 12 b) How long should the adhesive be allowed to dry before placing the final impression material? 6. List the two forms of final impression material that are placed in the custom tray.

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