Dental In deep older plaque A Streptococci and actinomyces are replaced by rod like organism B Streptococci are completely replaced by neisseria C Streptococci actinomyces and veilonella remain prominent D Actinomyces are completely replaced by streptococci 💡 Explanation In deep older plaque ✓ Correct Answer: A. Streptococci and actinomyces are replaced by rod like organism