Dental In general, what species are predominant in supragingival tooth-associated attached plaque? A Gram-negative rods and cocci B Gram-negative filaments C Gram-positive filaments D Gram-positive rods and cocci 💡 Explanation In general, what species are predominant in supragingival tooth-associated attached plaque? ✓ Correct Answer: D. Gram-positive rods and cocci