Indications and use of cone beam computed tomography in children and young individuals in a university-based dental hospital

Table 3 Association between CBCT indications and age group or field of view size

CBCT indications	Primary dentition		Mixed dentition		Permanent dentition			Small FOV		Medium FOV		Large FOV
	0–6 years		7–12 years		13–18 years			≤ 10 cm		11–15 cm		23 × 17 cm
	n	%	n	%	n	%	p	n	%	n	%	n	%	p
Malocclusion and dentofacial anomaly	3	1.6	63	32.8	126	65.6	¹0.017*	15	7.8	5	2.6	172	89.6	¹0.000*
Dental anomaly	0	0	10	76.9	3	23.1	²0.023*	12	92.3	1	7.7	0	0	-
Localization of impacted tooth	1	0.9	40	35.4	72	63.7	¹0.125	85	75.2	13	11.5	15	13.3	¹0.000*
Cysts and other bone pathology	9	6.7	55	41.0	70	52.3	¹0.094	101	75.4	33	24.6	0	0	¹0.000*
Facial trauma	3	16.7	4	22.2	11	61.1	¹0.014*	0	0	17	94.4	1	5.6	¹0.000*
Dental trauma	2	11.1	6	33.3	10	55.6	¹0.294	7	38.9	11	61.1	0	0	¹0.000*
Cleft lip and palate	1	4.8	7	33.3	13	61.9	¹0.913	13	61.9	2	9.5	6	28.6	¹0.652
Temporomandibular joint pathology	3	15.0	5	25.0	12	60.0	¹0.029*	3	15.0	16	80.0	1	5.0	¹0.000*
Localization of foreign object	0	0	0	0	1	100	-	1	100	0	0	0	0	-
Supernumerary tooth	6	7.9	45	59.2	25	32.9	¹0.000*	64	84.2	9	11.9	3	3.9	¹0.000*
Root resorption	0	0	7	58.3	5	41.7	²0.331	12	100	0	0	0	0	-
Implant planning	0	0	0	0	19	100	¹0.001*	16	84.2	3	15.8	0	0	¹0.009*
Endodontic assessment	0	0	8	28.6	20	71.4	¹0.265	25	89.3	3	10.7	0	0	¹0.000*
Periodontal assessment	0	0	1	33.3	2	66.7	-	2	66.7	1	33.3	0	0	-
**Total (N = 668 indications)	28	4.2	251	37.6	389	58.2		356	53.3	114	17.1	198	29.6

¹Pearson’s chi-square test, ²Fisher’s exact test, *Statistically significant = p < 0.05, ** Multiple indications may be selected in a patient

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