Table 1.

Number and type of calcifications observed

Groups	Percentage of rats with major calcifications on the papillary tip (> 90% of the papillary tip calcified)	Percentage of rats with some area of the papillary tip calcified	Percentage of rats with some calcified points on the papillary tip	Percentage of rats without calcifications on papillary tip
1. Negative controls	-	-	-	100
2. EG, AC and 100% lemon juice	-	-	-	100
3. EG, AC and 75% lemon juice	17	-	-	83
4. EG, AC and 50% lemon juice	-	-	50	50
5. EG and AC (positive controls)	33	33	17	17