The Additional Information of Bitewing Radiographs in the Detection of Established or Severe Dentinal Decay in 14-Year Olds: A Cross-Sectional Study in Low-Caries Population

Table 4

The distribution of subjects according to the sum of yield surfaces in relation to the clinical findings.

Subjects	N	Yields per subject	Yield 1*	Yield 2**	Yields 1 and 2***
			n (%)	n (%)	n (%)
DMFS = 0^a	161	0	85 (52.8)	136 (84.5)	84 (52.2)
		1	44 (27.3)	18 (11.2)	39 (24.2)
		2	20 (12.4)	6 (3.7)	14 (8.7)
		3	5 (3.1)	1 (0.6)	10 (6.2)
		4	4 (2.5)	—	8 (5.0)
		≥5	1 (0.6)	—	6 (3.7)
DMFS > 0^b	202	0	85 (42.1)	145 (71.8)	83 (41.1)
		1	47 (23.3)	44 (21.8)	39 (19.3)
		2	36 (17.8)	8 (4.0)	27 (13.4)
		3	18 (8.9)	5 (2.5)	22 (10.9)
		4	8 (4.0)	—	9 (4.5)
		≥5	8 (4.0)	—	22 (10.9)

Stat. Sign. independent samples Mann-Whitney U test nonparametric.
∗A statistically significant difference in the distribution of yield one between DMFS = 0 and DMFS > 0 subjects 𝑃=.005.
∗∗A statistically significant difference in the distribution of yield two between DMFS = 0 and DMFS > 0 subjects 𝑃=.005.
∗∗∗A statistically significant difference in the distribution of yields one and two between DMFS = 0 and DMFS > 0 subjects 𝑃=.004.