ENT All are true statements regarding use of sodium fluoride in the treatment of otosclerosis except: A It inhibits osteoblastic activity B Used in active phase of otosclerosis when Schwaz sign is positive C Has proteolytic activity (bone enzymes) D Contraindicated in chronic nephritis 💡 Explanation All are true statements regarding use of sodium fluoride in the treatment of otosclerosis except: ✓ Correct Answer: A. It inhibits osteoblastic activity