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Table 2 Correlation between mean changes of bone thickness and potential influencing factors; r value (P value)

From: Alveolar bone remodeling during maxillary incisor intrusion and retraction

 ΔB1ΔB1/B1 at T0ΔB2ΔB2/B2 at T0ΔB3ΔB3/B3 at T0
B1 at T0− 0.288 (0.099)− 0.341* (0.048)− 0.183 (0.301)− 0.286 (0.102)0.093 (0.601)− 0.075 (0.674)
B2 at T0− 0.214 (0.225)− 0.333 (0.055)− 0.327 (0.059)− 0.435* (0.010)− 0.085 (0.631)− 0.281 (0.107)
B3 at T0− 0.051 (0.775)− 0.144 (0.417)− 0.152 (0.391)− 0.238 (0.176)− 0.196 (0.268)− 0.403* (0.018)
θ at T0− 0.078 (0.662)− 0.163 (0.357)− 0.139 (0.433)− 0.194 (0.270)− 0.324 (0.062)− 0372* (0.030)
U1 to FH− 0.386* (0.024)− 0.303 (0.081)− 0.279 (0.111)− 0.191 (0.280)− 0.359* (0.037)− 0.265 (0.130)
U1 to Palatal plane− 0.428* (0.011)− 0.339* (0.050)− 0.428* (0.012)− 0.248 (0.157)− 0.448* (0.008)− 0.354* (0.040)
U1 labial surface to palatal plane− 0.522** (0.002)− 0.395* (0.021)− 0.372* (0.030)− 0.239 (0.174)− 0.432* (0.011)− 0.389* (0.023)
Bone labial surface to palatal plane− 0.479** (0.004)− 0.408* (0.017)− 0.366* (0.033)− 0.314 (0.070)− 0.405* (0.018)− 0.404* (0.018)
ΔB110.917*** (< 0.001)0.838*** (< 0.001)0.742*** (< 0.001)0.667*** (< 0.001)0.617*** (< 0.001)
ΔB1/B1 at T00.917*** (< 0.001)10.861*** (< 0.001)0.873*** (< 0.001)0.689*** (< 0.001)0.741*** (< 0.001)
ΔB20.838*** (< 0.001)0.861*** (< 0.001)10.938*** (< 0.001)0.818*** (< 0.001)0.771*** (< 0.001)
ΔB2/B2 at T00.742*** (< 0.001)0.873*** (< 0.001)0.938*** (< 0.001)10.762*** (< 0.001)0.832*** (< 0.001)
ΔB30.667*** (< 0.001)0.689*** (< 0.001)0.818*** (< 0.001)0.762*** (< 0.001)10.875*** (< 0.001)
ΔB3/B3 at T00.617*** (< 0.001)0.741*** (< 0.001)0.771*** (< 0.001)0.832*** (< 0.001)0.875*** (< 0.001)1
Intrusion amount0.243 (0.166)0.223 (0.205)0.186 (0.292)0.213 (0.226)0.392* (0.022)0.386* (0.024)
Retraction amount0.155 (0.380)0.128 (0.472)− 0.004 (0.983)0.005 (0.978)− 0.185 (0.294)− 0.125 (0.483)
  1. *P < 0.05, **P < 0.005, ***P < 0.001, statistically significant; Pearson’s correlation coefficient