TABLE 2.

Inter and intra‐class correlation coefficient between measured and ratio parameters

	Measured parameters					Ratio parameters
	Overall (n = 80)	UHTV (n = 20)	LHTV (n = 20)	URCV (n = 20)	LRCV (n = 20)	Overall (n = 40)	UTVR (n = 20)	LTVR (n = 20)
Inter‐observer	0.992 CI [0.986–0.996]	0.889 CI [0.581–0.972]	0.972 CI [0.893–0.993]	0.741 CI [0.023–0.935]	0.897 CI [0.61–0.974]	0.942 CI [0.842–0.974]	0.775 CI [0.048–0.928]	0.942 CI [0.83–0.978]
Intra‐observer	0.975 CI [0.937––0.99]	0.942 CI [0.856–0.977)	0.875 CI [0.682–0.951]	0.975 CI [0.937–0.99]	0.958 CI [0.894–0. 9983]	0.925 CI [0.858–0.96]	0.889 CI [0.748–0.96]	0.827 CI [0.57–0.931]

Abbreviations: UHTV, upper hard tissue volume; LHTV, lower hard tissue volume; URCV, upper root chamber volume; LRCV, lower root chamber volume; n, number of measured parameters; CI, 95% confidence interval; UTVR, upper tooth volume ratio; LTVR, lower tooth volume ratio.