system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Gustafson's method used for age estimation of the tooth includes all except -
assistant
The correct answer is  Gustafson's method includes :

(i) Attrition, 
(ii) Paradentosis,
(iii) Secondary dentin formation,
(iv) Cementum apposition,
(v) Root resorption and
(iv) Transparency of the root.