Dental Which of the following plaque is most harmful and causes spread of Inflammation to the connective tissue leading to bone destruction: A Subgingival epithelial attached B Subgingival unattached C Subgingival plaque D Supragingival plaque 💡 Explanation Which of the following plaque is most harmful and causes spread of Inflammation to the connective tissue leading to bone destruction: ✓ Correct Answer: A. Subgingival epithelial attached