Table 2.

In Vitro Cellular Proliferation Study

Treatments	6 h	24 h	48 h	72 h
BSS	100 ± 4.06	100 ± 3.45	100 ± 3.14	100 ± 2.25
Reg P. –Ab	88.7 ± 4.32	65.7 ± 3.87	51.3 ± 3.65	30.1 ± 3.14
Reg_P +Ab	78.3 ± 4.98	58.3 ± 4.01	42.7 ± 3.49	21.3 ± 2.68
Dil_P –Ab	92.7 ± 5.32	82.7 ± 4.87	58.3 ± 2.87	50.1 ± 2.98
Dil_P +Ab	85.5 ± 3.24	75.6 ± 2.54	51.1 ± 4.21	45.7 ± 3.65

Reg P., regular proparacaine (0.5%); Dil. P, diluted proparacaine (0.05%); +Ab treated with antibiotics; −Ab not treated with antibiotics. At 6 h, viability was significantly affected, P < 0.01 (in Reg. P); and at 24, 48, and 72 h, the cellular viability was significantly affected, P < 0.001 (in Reg. P and Dil. P).