Handling Materials: Acid Etch
SBA-MCQ


Choose the Single Best Answer (SBA) to the questions below:

1. What acid is normally used to etch teeth in restorative dentistry?








2. What strength of this acid is normally used to etch teeth in restorative dentistry?









3. When etching enamel, approximately how long should the acid be in place?








4. What is 'conditioner' ?








5. When etching dentine, approximately how long should the acid be in place?








6. When washing the acid off a tooth, approximately how long should you spray water for?








7. What is the point of the water spraying?






8. How deep is the micro-porous layer created by etching the enamel (in micrometers) ?







9. How much general surface enamel is removed by etching (in micrometres) ?







10. How dry should enamel be after etching, and before placement of a bonding resin?







11. What is the appearance of correctly etched enamel?







12. Why is etch usually presented as a gel instead of a solution?







13. Why is the etch gel coloured?






14. How should you protect adjacent teeth from being etched?







15. How should the patient be protected from the acid when it is being washed off?









16. How should the pulp be protected from etch in a very deep cavity?








17. What type of enamel / restoration bond is created when an acid-etch technique is used?




Educational aims of this juce


This page aims to let you assess your knowledge of the Acid Etch Technique with Single-Best-Answer (MCQ) questions like:
What is 'conditioner' ?
How deep is the micro-porous layer created by etching the enamel?
What type of enamel / restoration bond is created when an acid-etch technique is used?
Your answers are scored as you go - no waiting until the test is finished!

This page contains verifiable CE / CPD




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