Dental Extensive formation of hard tissue on dentin walls, often in response to irritation or death and replacement of odontoblast, this process is called as A Calcific metamorphosis. B Calcific degeneration. C Pulp polyp. D None. 💡 Explanation Extensive formation of hard tissue on dentin walls, often in response to irritation or death and replacement of odontoblast, this process is called as ✓ Correct Answer: A. Calcific metamorphosis.