Dental What is the test being done & what sign is it used to demonstrate? A Scraping test, Auspitz sign B Grattage test, Koebner's phenomenon C Scrapping test, Koebner's phenomenon D Grattage test, Auspitz sign 💡 Explanation What is the test being done & what sign is it used to demonstrate? ✓ Correct Answer: D. Grattage test, Auspitz sign