International Scholarly Research Notices / 2014 / Article / Tab 2

Research Article

Clinical Evaluation of Etched Enamel Discoloration following Immediate and Delayed Exposure to Colored Agents

Table 2

The results of the Sign test for Comparison of of etched and unetched enamel in the four groups.

Group IGroup IIGroup IIIGroup IV

Exact significant (2-tailed)0.8040.2100.077*0.077*
Exact significant (1-tailed)0.4020.1050.038*0.038*

Statistical significant.