Dental The Russell periodontal index is calculated by: A Adding all the tooth scores and dividing by the number of teeth examined B Adding all the tooth scores and multiplying by the number of teeth examined C Adding all the tooth scores and dividing by 32 D None of the above methods 💡 Explanation The Russell periodontal index is calculated by: ✓ Correct Answer: A. Adding all the tooth scores and dividing by the number of teeth examined