. 2024 Jul 10;24:770. doi: 10.1186/s12903-024-04522-0

Table 1.

RMS of the tooth surface changes after VBR using different software

		3Shape (n=20)	Meshmixer (n=20)	EasyRx (n=20)	P value 1
Incisors	Mean (SD)	0.071 (0.015)	0.061 (0.016)	0.074 (0.020)	χ^r2= 11.17 P= 0.004*
Incisors	Median (IQR)	0.068 (0.058, 0.084)	0.057 (0.049, 0.070)	0.072 (0.060, 0.086)	χ^r2= 11.17 P= 0.004*
Canines/ premolars	Mean (SD)	0.083 (0.025)	0.084 (0.035)	0.169 (0.124)	χ^r2= 22.30 P <0.001*
Canines/ premolars	Median (IQR)	0.075 (0.063, 0.097)	0.076 (0.065, 0.094)	0.101 (0.088, 0.239)	χ^r2= 22.30 P <0.001*
Molars	Mean (SD)	0.111 (0.036)	0.140 (0.053)	0.240 (0.183)	χ^r2= 20.80 P <0.001*
Molars	Median (IQR)	0.099 (0.093, 0.130)	0.127 (0.101, 0.182)	0.162 (0.121, 0.303)	χ^r2= 20.80 P <0.001*
Overall	Mean (SD)	0.112 (0.021)	0.120 (0.037)	0.235 (0.160)	χ^r2= 22.05 P <0.001*
Overall	Median (IQR)	0.106 (0.093, 0.128)	0.114 (0.089, 0.146)	0.177 (0.129, 0.279)	χ^r2= 22.05 P <0.001*
P value 2		χ^r2= 15.18 P <0.001*	χ^r2= 30.70 P <0.001*	χ^r2= 30.70 P <0.001*
Post-hoc comparisons	Incisors vs. canines and premolars Incisors vs. molars Canines and premolars vs. molars	1.00 0.002 0.005	0.008* <0.001 0.03	0.008 <0.001 0.03**

SD Standard Deviation, IQR Interquartile range

P value 1: Comparison between the three study groups, P value 2: comparison between different segments within each group

χ^r2: Friedman test was used.

^*Statistically significant at p value <0.05

^**statistically significant differences between different segments within each group after Bonferroni adjustment