Three-dimensional volumetric evaluation of the different mandibular segments using CBCT in patients affected by juvenile idiopathic arthritis: a cross-sectional study

Progress in Orthodontics

Table 3 Descriptive statistics and statistical comparison with one-way analysis of variance between the following groups: unilateral affected side (Uni-Aff), unilateral unaffected side (Uni-UnAff), bilateral JIA patients (Bil-Aff) and control healthy group (Ctrl)

Volume (mm³)	Uni-Aff (N = 29)	Uni-UnAff (N = 29)	Bil-Aff ^A (N = 48)	Ctrl^A (N = 25)	ANOVA test	Pairwise comparisons (Bonferroni correction)
Volume (mm³)	Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD	P value	Pairwise comparisons (Bonferroni correction)
Hemimandible	22,441.74 ± 4964.13	24,815.70 ± 5148.13	22,670.10 ± 4783.78	25,007.70 ± 4635.16	0.057	–
Condyle	929.46 ± 261.88	1419.39 ± 375.23	1068.54 ± 410.2	1444.47 ± 170.82	0.0012*	Ctrl > Uni-Aff < Uni-UnAff; Ctrl > Bil-Aff < Uni-UnAff
Ramus	4776.31 ± 1360.85	5566.24 ± 1541.79	4812.67 ± 1425.15	5715.44 ± 1407.63	0.037*	Ctrl > Uni-Aff < Uni-UnAff; Ctrl > Bil-Aff < Uni-UnAff
Hemibody	16,674.71 ± 3136.04	17,895.79 ± 3094.57	16,688.80 ± 3109.74	17,847.57 ± 2766.12	0.201	–
Mandible Tot ^a	47,256 ± 5086.37^B		45,340.76 ± 4787.21	49,676.92 ± 4783.38	0.0018*	(Uni-Aff-UnAff) < Ctrl; Bil-Aff < Ctrl

Uni-Aff affected side—unilateral JIA, Uni-UnAff unaffected side—unilateral JIA, Bil-Aff bilateral JIA, Ctrl control group
*p value < 0.05 was considered as statistically significant
^AValues are means ± standard deviations of each patient average value between right hemimandible and left hemimandible
^BValues are means ± standard deviations of each patient average value between unilateral affected side and unilateral unaffected side