Table 2.

Number of cone beam computed tomography (CBCT) and panoramic radiography (PR) machines per million population nationally

Modality	Year	Number of machines	Population size	Number of machines per million population	95% CI	Ratio of machine uptake
CBCT	2014	232	23,577,900	10	(5.52, 20.99)	2.80
	2020	707	25,459,700	28	(25.37, 43.29)
PR	2014	1,681	23,577,900	71	(51.10, 112.56)	1.69
	2020	3,059	25,459,700	120	(96.90, 158.90)