Dental Thermafil GP is sterilized by: A 5.25% NaOCl for 1 min. then rinsing with 70% alcohol . B 5.25% NaOCl for 30 second only C 5.25% NaOCl for 1 min. then rinsed in 50% alcohol. D 5.25% NaOCl for 1 minute only. 💡 Explanation Thermafil GP is sterilized by: ✓ Correct Answer: A. 5.25% NaOCl for 1 min. then rinsing with 70% alcohol .