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Table 1 Study group: difference of means between T0 and T1 for all the considered variables

From: Maxillary molar distalization with aligners in adult patients: a multicenter retrospective study

Variable T0 T1 Difference of means 95 % CI Significance
Mean SD Mean SD (T1–T0) Lower Upper P value
SN^GoGn 32.80 7.16 32.35 6.43 −0.45 −1.20 0.30 N.S.
SNA 81.00 4.08 80.70 4.44 −0.30 −1.12 0.52 N.S.
SNB 76.45 2.76 76.95 3.45 0.50 −0.19 1.19 N.S.
ANB 4.45 2.91 3.75 2.95 −0.7 −1.29 −0.11 0.023*
SPP^GoGn 26.10 6.08 26.20 5.75 0.10 −1.05 1.25 N.S.
17mcPtV 14.99 3.41 12.47 2.84 −2.52 −3.24 −1.79 0.0000006517****
17ccPtV 13.87 3.09 11.75 2.69 −2.12 −2.76 −1.48 0.000001402****
17praPtV 16.25 2.58 14.74 2.31 −1.50 −2.07 −0.94 0.00002191****
17vmraPtV 18.24 2.67 16.57 2.48 −1.67 −2.31 −1.03 0.00003057****
16mcPtV 24.91 3.93 22.65 3.97 −2.25 −4.21 −0.29 0.027*
16ccPtV 23.17 3.80 21.14 3.24 −2.03 −2.72 −1.35 0.000005878****
16praPtV 24.39 3.33 22.54 2.58 −1.84 −2.86 −0.82 0.001***
16vmraPtV 26.66 3.27 25.17 3.02 −1.48 −2.40 −0.57 0.003**
11raPtV 45.14 4.58 44.34 4.15 −0.81 −2.35 0.73 N.S.
11ccPtV 49.86 5.13 48.54 5.11 −1.31 −2.83 0.21 N.S.
11iePtV 53.50 5.82 51.28 5.87 −2.23 −3.76 −0.70 0.007**
17mcPP 20.39 3.19 19.91 2.43 −0.49 −1.59 0.62 N.S.
17ccPP 16.66 2.83 16.15 2.22 −0.51 −1.40 0.39 N.S.
17praPP 4.86 3.55 3.58 1.98 −1.28 −3.09 0.53 N.S.
17vmraPP 3.70 1.82 3.59 2.20 −0.11 −0.90 0.68 N.S.
16mcPP 23.15 2.68 22.53 2.59 −0.62 −1.44 0.19 N.S.
16ccPP 19.36 2.39 19.06 2.32 −0.31 −1.11 0.49 N.S.
16praPP 6.72 1.60 6.17 2.01 −0.55 −1.45 0.34 N.S.
16vmraPP 5.53 1.93 4.73 2.10 −0.80 −1.67 0.06 N.S.
11raPP 5.64 2.50 5.00 2.34 −0.63 −1.69 0.43 N.S.
11iePP 28.98 2.98 28.62 2.85 −0.36 −1.28 0.57 N.S.
11ccPP 20.39 7.95 19.24 2.49 −1.15 −4.59 2.29 N.S.
17mcOP 1.28 0.99 0.99 0.89 −0.29 −0.80 0.23 N.S.
17ccOP 4.06 1.74 4.07 1.46 0.01 −0.72 0.74 N.S.
17praOP 16.82 2.29 16.95 1.81 0.13 −0.82 1.09 N.S.
17vmraOP 16.97 3.70 17.42 1.96 0.44 −1.27 2.25 N.S.
16ccOP 3.21 0.96 3.16 0.78 −0.05 −0.55 0.46 N.S.
16praOP 15.86 2.06 16.10 2.11 0.24 −0.43 0.90 N.S.
16vmraOP 17.50 1.93 17.97 2.10 0.48 −0.41 1.36 N.S.
11raOP 21.66 2.77 21.72 2.93 0.06 −1.41 1.54 N.S.
11ccOP 9.20 1.47 8.63 1.34 −0.57 −1.33 0.20 N.S.
17^PP 79.17 6.84 76.53 5.13 −2.64 −5.37 0.06 N.S.
16^PP 84.64 7.82 83.00 4.54 −1.64 −4.67 1.39 N.S.
11^PP 109.60 6.70 106.70 6.66 −2.87 −5.06 −0.69 0.013*
  1. *P < 0.05; **P < 0.01; ***P < 0.001; ****P < 0.0001
  2. For each variable, there is a number indicating the FDA code for the considered tooth; then in small letters, the anatomic point considered (mc mesial cusp, cc center of the crown, pra palatal root apex, vmra vestibulo-mesial root apex, ie incisal edge, ra root apex); then in capital letters, the plane to which the distance from that point is measured (PtV line passing trough the Pt Ricketts point, perpendicular to palatal plane; PP palatal plane; OP occlusal plane). The italic values highlight the significance of the amount of the distalization movement. N.S. Not Significant