Three-dimensional analysis of miniscrew position changes during bone-borne expansion in young and late adolescent patients

Progress in Orthodontics

Table 5 Correlation between the miniscrew axis angle longitudinal difference measured in the frontal view and the peri-suture cortical thickness measured in the frontal view at the anterior, middle or posterior zone and the homolateral measured alveolar bending

	CRVTHANT		CRVTHMED		CRVTHPOST		ProcAlv/NF
	r	P value	r	P value	r	P value	r	P value
Frontal view
Left anterior miniscrew—angle to occlusal plane	0.046	0.867	− 0.072	0.791	0.068	0.805	0.203	0.528
Right anterior miniscrew—angle to occlusal plane	0.242	0.367	0.387	0.139	− 0.021	0.943	− 0.371	0.235
Left posterior miniscrew—angle to occlusal plane	− 0.251	0.348	− 0.0839	0.758	− 0.209	0.438	− 0.017	0.959
Right posterior miniscrew—angle to occlusal plane	− 0.16	0.555	− 0.34	0.198	− 0.607	0.013*	0.229	0.473
Right anterior miniscrew—head to occlusal plane distance	0.067	0.805	− 0.103	0.703	− 0.147	0.586	0.388	0.212
Left anterior miniscrew—head to occlusal plane distance	0.344	0.192	0.48	0.060	0.28	0.294	− 0.010	0.974

	ANTPTH		ANTNTH		ANTTOTHEI		MEDPTH
	r	P value	r	P value	r	P value	r	P value
Frontal view
Left anterior miniscrew—angle to occlusal plane	0.245	0.444	− 0.368	0.24	− 0.217	0.499	− 0.032	0.905
Right anterior miniscrew—angle to occlusal plane	− 0.343	0.275	− 0.287	0.366	− 0.783	0.004*	0.1	0.712
Left posterior miniscrew—angle to occlusal plane	− 0.736	0.006*	− 0.708	0.01*	− 0.343	0.275	0.343	0.194
Right posterior miniscrew—angle to occlusal plane	0.029	0.928	− 0.311	0.326	0.336	0.286	− 0.047	0.862
Right anterior miniscrew—head to occlusal plane distance	0.010	0.976	0.096	0.767	0.365	0.243	0.021	0.938
Left anterior miniscrew—head to occlusal plane distance	− 0.245	0.443	0.087	0.788	− 0.128	0.691	0.207	0.442

	MEDNTH		POSTNTH		POSTPTH		POSTTOTHEI
	r	P value	r	P value	r	P value	r	P value
Frontal view
Left anterior miniscrew—angle to occlusal plane	− 0.073	0.788	0.362	0.169	0.124	0.648	− 0.059	0.831
Right anterior miniscrew—angle to occlusal plane	0.053	0.848	0.279	0.294	0.258	0.336	− 0.006	0.987
Left posterior miniscrew—angle to occlusal plane	0.267	0.317	0.517	0.040*	0.409	0.116	− 0.097	0.719
Right posterior miniscrew—angle to occlusal plane	0.047	0.863	0.028	0.917	− 0.026	0.922	0.044	0.872
Right anterior miniscrew—head to occlusal plane distance	− 0.131	0.629	0.355	0.177	0.298	0.262	− 0.146	0.59
Left anterior miniscrew—head to occlusal plane distance	0.152	0.574	− 0.068	0.802	0.010	0.713	− 0.117	0.667

r: Pearson correlation coefficient, or Spearman’s rank correlation test coefficient; P value: P value of Pearson correlation test, or P value of Spearman’s rank correlation test coefficient. *statistically significant
CRVTHANT, suture thickness of the anterior area measured in the coronal view; CRVTHMED, suture thickness of the middle area measured in the coronal view; CRVTHPOST, suture thickness of the posterior area measured in the coronal view; ProcAlv/NF, alveolar inclination to nasal floor; ANTPTH, palatal cortical thickness in the anterior area measured in the sagittal view; ANTNTH, nasal cortical thickness in the anterior area measured in the sagittal view; ANTTOTHEI, total bone height in the anterior area measured in the sagittal view; MEDPTH, palatal cortical thickness in the median area measured in the sagittal view; MEDNTH, nasal cortical thickness in the median area measured in the sagittal view; POSTNTH, nasal cortical thickness in the posterior area measured in the sagittal view; POSTPTH, palatal cortical thickness in the posterior area measured in the sagittal view; POSTTOTHEI, total bone height in the posterior area measured in the sagittal view