a decreasing trendP = 0.817
In our study [data shown in Table 1 and Pentacam image shown in Figure 2 ], no significant decrease in K max value was seen in both C3R and control groups in each follow-up (comparing both the groups), but P values showed a decreasing trend ( P = 0.817, 0.308, and 0.112 at the 1 st , 3 rd , and 6 th months, respectively).