© 1998 – 2025 National Dental Assisting Examining Board 29 5.7.5.2. Select and assemble a matrix system and wedge(s) for prescribed restorative procedures 5.7.5.3. Assist with placement and removal of matrix system and wedge(s) 5.7.6. Apply and remove matrix systems and wedge(s) 5.7.6.1. Select and prepare equipment and supplies 5.7.6.2. Apply matrix system and wedge(s) following procedural steps and evaluate according to criteria 5.7.6.3. Correct application or placement errors for matrix system or wedge(s) 5.7.6.4. Remove matrix system and wedge(s) following procedural steps and assess adjacent tissues 5.7.7. Assist with preparation and placement of permanent restorative materials 5.7.7.1. Describe the properties of and explain the rationale for the use of amalgam and permanent, direct restorative materials 5.7.7.2. Prepare equipment and supplies and assist with amalgam placement, finishing and adjustment procedures, observing mercury hygiene best practice management 5.7.7.3. Describe permanent, direct restorative materials and their polymerization 5.7.7.4. Prepare equipment and supplies and assist with placement, finishing and adjustment of permanent, direct restorative materials 5.7.7.5. Provide verbal/written, pre-operative, operative, post- operative and home care information/instructions 5.7.8. Assist with the preparation and placement of temporary restorative materials 5.7.8.1. Explain the rationale for using various types of temporary restorative materials 5.7.8.2. Prepare equipment and supplies and assist with preparation, placement, finishing and adjustment of temporary restorative materials 5.7.8.3. Provide verbal/written, pre-operative, operative, post- operative and home care information/instructions 5.7.9. Assist with vital and non-vital tooth whitening techniques 5.7.9.1. State indications and contra-indications for whitening of vital and non-vital teeth 5.7.9.2. Describe vital and non-vital tooth whitening materials and techniques 5.7.9.3. Describe the side-effects which may result from tooth whitening 5.7.9.4. Prepare equipment and supplies and assist with vital and non-vital tooth whitening 5.7.9.5. Provide verbal/written, pre-operative, operative, post- operative and home care information/instructions 5.7.10. Assist with placement of dental implants
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