Effect of different palatal vault shapes at room temperature. Obtained data were record- ed in millimeters. Statistical analysis A statistical software program (SPSSFW, 9.0; SPSS Inc, Chicago, III) was used for statisti- cal analyses. Data obtained at the first and sec- ond distance measurements were compared with Kruskal-Wallis analysis of variance test. Signifi- cant differences between groups were compared using Mann-Whitney U test with Bonferroni cor- rection. A 95% confidence level was used. rEsuL ts Mean, standard deviation and P values of data (mm) obtained from 7 marked regions in sagittal sections of test specimens 24 h after polymeriza- tion and after 30 days of water storage are pre- Table 2. Mean, standard deviation and P values of linear measurement data (mm) obtained from resin/stone cast interfaces in 7 marked regions in sagittal sections of test spe- cimens, 24 h after polymerization and after 30 days of water storage (confidence level: 95%, P<.05). Sagittal sections Region meaTsimureeomfent NOF WOF ROF Groups Mean St. Dev. P Groups Mean St. Dev. P Groups Mean St. Dev. P 1 2 3 4 5 6 7 24 h (after polymerization) 30 days (water storage) 24 h (a.p.) 30 days (w.s.) 24 h (a.p.) 30 days (w.s.) 24 h (a.p.) 30 days (w.s.) 24 h (a.p.) 30 days (w.s.) 24 h (a.p.) 30 days (w.s.) 24 h (a.p.) 30 days (w.s.) U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U 0.183 0.196 0.158 0.144 0.113 0.111 0.153 0.118 0.138 0.133 0.060 0.088 0.116 0.093 0.141 0.082 0.055 0.080 0.097 0.053 0.055 0.082 0.027 0.042 0.072 0.017 0.018 0.012 0.005 0.013 0.047 0.018 0.027 0.013 0.008 0.015 0.077 0.023 0.033 0.028 0.090 0.112 0.083 0.143 0.073 0.084 0.077 0.067 0.095 0.034 0.055 0.066 0.058 0.058 0.140 0.034 0.032 0.050 0.092 0.035 0.037 0.083 0.020 0.033 0.113 0.036 0.032 0.021 0.008 0.019 0.078 0.036 0.031 0.028 0.014 0.017 0.078 0.034 0.018 0.029 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U DEP ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U 0.131 0.087 0.100 0.136 0.109 0.050 0.079 0.045 0.070 0.083 0.048 0.040 0.036 0.085 0.050 0.044 0.037 0.040 0.021 0.033 0.010 0.039 0.008 0.020 0.013 0.013 0.010 0.003 0.010 0.003 0.003 0.006 0.020 0.001 0.008 0.005 0.011 0.038 0.030 0.004 0.164 0.08 0.070 0.151 0.098 0.050 0.140 0.019 0.060 0.116 0.047 0.030 0.088 0.147 0.060 0.102 0.022 0.080 0.040 0.049 0.020 0.082 0.014 0.050 0.021 0.023 0.020 0.006 0.022 0.007 0.006 0.016 0.020 0.005 0.021 0.008 0.022 0.054 0.030 0.008 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U V ROUNDED U 0.153 0.144 0.129 0.136 0.097 0.100 0.118 0.128 0.106 0.121 0.067 0.060 0.080 0.095 0.070 0.100 0.068 0.040 0.020 0.073 0.020 0.030 0.050 0.020 0.010 0.028 0.010 0.002 0.010 0.007 0.020 0.027 0.010 0.002 0.017 0.005 0.050 0.030 0.010 0.010 0.100 0.064 0.070 0.109 0.077 0.060 0.080 0.077 0.144 0.121 0.064 0.060 0.070 0.093 0.100 0.100 0.083 0.050 0.020 0.097 0.040 0.060 0.102 0.020 0.020 0.053 0.020 0.005 0.016 0.010 0.060 0.051 0.010 0.005 0.027 0.008 0.070 0.026 0.020 0.009 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 >0.05 74 European Journal of Dentistry