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Table 1: Image-quality scores for scoring method 1 (visualization of 6 bony anatomic structures) and scoring method 2 (subjective impression of the overall quality of the study) for each imaging technique, with left and right sides combined^{^a}
Standard CT Conebeam CT Difference
Score 1^{^b} 
    Reader 1 11 ± 2.8 (3–12) 10.5 ± 3.4 (3–12) 0.5^{^c}
    Reader 2 11 ± 2.9 (3–12) 10.25 ± 3.5 (3–12) 0.75^{^d}
    Difference 0 0.25 0.5c
Score 2^{^e} 
    Reader 1 5 ± 0.45 (4–5) 4 ± 0.7 (4–5) 1^{^d}
    Reader 2 5 ± 0.22 (3–5) 4 ± 0.54 (3–5) 1^{^d}
    Difference 0 0 0
↵a Data are median values ± SD (range).
↵b Score 1: 0- to 12-point scale.
↵c P < .01.
↵d P < .001.
↵e Score 2: 1- to 5-point scale.

	Standard CT	Conebeam CT	Difference
Score 1^{^b}
Reader 1	11 ± 2.8 (3–12)	10.5 ± 3.4 (3–12)	0.5^{^c}
Reader 2	11 ± 2.9 (3–12)	10.25 ± 3.5 (3–12)	0.75^{^d}
Difference	0	0.25	0.5c
Score 2^{^e}
Reader 1	5 ± 0.45 (4–5)	4 ± 0.7 (4–5)	1^{^d}
Reader 2	5 ± 0.22 (3–5)	4 ± 0.54 (3–5)	1^{^d}
Difference	0	0	0