Dental Glucose levels in gingival crevicular fluid (GCF) are: A Equal to glucose level in serum B Zero C 3-4 times greater than serum levels D More than 10 times the serum Levels 💡 Explanation Glucose levels in gingival crevicular fluid (GCF) are: ✓ Correct Answer: C. 3-4 times greater than serum levels