Dental Which of the following is true regarding DMFT index? A Teeth extracted for orthodontic treatment are considered in missing. B Primary teeth are included in the scoring. C A tooth is considered to be present if the crown is destroyed and only roots are present. D Teeth with secondary caries comes under filled teeth. 💡 Explanation Which of the following is true regarding DMFT index? ✓ Correct Answer: C. A tooth is considered to be present if the crown is destroyed and only roots are present.