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. 2021 Apr 19;21:199. doi: 10.1186/s12903-021-01487-2

Table 2.

Descriptive statistics and statistical comparison between T0 and T1 differences by means of Student t-test for paired groups

Mean of IPR digitally planned (T0) (mm) Mean of IPR performed (T1) (mm) T1–T0 95% CI p values
Upper arch 0.62 ± 0.63 0.62 ± 0.63 0.00 − 0.16 to 0.16 NS
Lower arch 1.92 ± 1.93 1.93 ± 1.97 0.01 − 0.18 to 0.12 NS

NS not significant, CI confidence interval