International Scholarly Research Notices / 2014 / Article / Tab 1

Research Article

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

Table 1

Mean and standard deviations of of etched (case) and unetched (control) enamel in the four groups.

NumberMinimumMaximumMean ± SD

Group I
 Case160.307.822.33 ± 1.8
 Control160.505.121.96 ± 1.4
Group II
 Case160.907.103.70 ± 1.8
 Control160.706.703.50 ± 1.8
Group III
 Case160.506.623.05 ± 1.7
 Control160.425.222.40 ± 1.4
Group IV
 Case160.706.463.14 ± 1.5
 Control160.578.352.56 ± 1.9