Dental According to ADA specification of a tooth-brush, which of the following is false? A Head of the brush should be 2 inches long B 2-4 rows of bristles C 5-12 tufts per row D 80-86 bristles per tuft 💡 Explanation According to ADA specification of a tooth-brush, which of the following is false? ✓ Correct Answer: A. Head of the brush should be 2 inches long