Table 1.

Incidence of oral neoplasm in control and experiment animal groups (n = 5).

Group	Treatment	No. of tumor	Mean tumor volume (mm3)	Tumor burden (mm3)
D	DMBA 6 weeks alone	18	26.92 ± 20.11	92.86 ± 63.68
A	DMBA 6 weeks + 6% celecoxib	9	48.57 ± 20.86	72.85 ± 28.59
B	DMBA 6 weeks + RMRE	10	23.74 ± 21.34	35.76 ± 18.49*
C	DMBA 6 weeks + Lovastatin	10	42.25 ± 25.42	99.42 ± 98.71
OL	Oil 14 weeks	0	—	—

*Significantly different when compared with group D (P < .05) by Student's t-test.