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Table 6 Comparison of differences between the tooth-borne and bone-anchored groups after subtracting changes due to growth (control group)

From: Comparison of two maxillary protraction protocols: tooth-borne versus bone-anchored protraction facemask treatment

Variables Tooth-borne protraction facemask Bone-anchored protraction facemask   
Sagittal Mean SD Mean SD p value Sig
 OLp–A pt. 0.72 1.29 0.74 1.23 0.98 NS
 OLp–B pt. −2.28 1.43 −2.31 2.15 0.93 NS
 OLp–Pg −2.07 2.11 −1.21 3.05 0.32 NS
 Wits 2.19 2.74 2.31 2.40 0.89 NS
 OLp–Is 2.12 1.22 0.87 2.43 0.03 *
 OLp–Ii −3.40 2.33 −2.48 2.26 0.23 NS
 Overjet 5.53 2.00 3.35 2.45 0.003 *
 OLp–Ms 1.35 1.53 1.19 1.78 0.67 NS
 OLp–Mi −1.31 0.55 0.20 2.93 0.06 NS
 Molar relationship 2.53 1.55 1.18 1.99 0.02 *
Vertical (mm)       
 OLparallel–A pt 1.15 2.00 −0.40 1.40 0.004 *
 Is–NL −0.52 1.50 1.34 2.80 0.01 *
 Ii–ML 0.09 2.18 0.60 1.72 0.49 NS
 Overbite −1.49 2.90 −0.45 2.23 0.21 NS
 Msc–NL 0.80 1.56 1.09 1.86 0.63 NS
 Mic–ML 0.66 1.36 0.89 1.38 0.62 NS
Angular (°)       
 SNA 0.39 1.74 1.29 2.13 0.15 NS
 SNB −2.19 1.51 −1.32 1.99 0.13 NS
 ANB 2.58 1.80 2.17 2.41 0.95 NS
 SNL–ML 2.76 1.39 −0.25 2.90 0.007 *
 SNL–OL −1.73 3.90 −1.04 3.33 0.33 NS
 SNL–NL 0.72 2.72 −0.66 2.15 0.87 NS
 Is–SNL −0.19 7.35 −4.42 5.67 0.04 *
 Ii–ML −4.33 7.68 −2.23 3.84 0.09 NS
  1. NS not significantly different
  2. *Significantly different at p < 0.05