Dental caries thresholds among adolescents in England, Wales, and Northern Ireland, 2013 at 12, and 15 years: implications for epidemiology and clinical care

Table 2 Dental caries distribution at surface, tooth and child levels amongst 15-year-olds^a,b

Distribution according to CDHS 2013 code	Surface level				Tooth level^c				Child level^c
Distribution according to CDHS 2013 code	Sum	%	Mean/child	S.D	Sum	%	Mean/child	S.D	Sum	%
Sound^d	292,155	95.06	120.83	9.14	58,104	86.44	24.03	4.19	643	26.59
Code AV-visual change in enamel	4356	1.42	1.80	3.32	3266	4.86	1.35	2.35	289	11.95
Code AC-enamel change with cavitation	528	0.17	0.22	0.76	429	0.64	0.18	0.63	60	2.48
Code 2V-visual dentine caries	1319	0.43	0.55	1.50	959	1.43	0.40	1.03	237	5.05
Code 2C-cavitated dentin caries	764	0.25	0.32	1.20	541	0.80	0.22	0.74	192	7.94
Code 3-decay with pulpal involvement	395	0.13	0.16	1.47	105	0.16	0.04	0.35	28	1.16
Filled with recurrent decay	310	0.10	0.13	1.03	219	0.33	0.09	0.52	101	4.18
Filling needs replacement, no decay	61	0.02	0.03	0.24	34	0.05	0.01	0.13	10	0.58
Sound filling	5038	1.64	2.08	3.80	3081	4.58	1.27	2.03	608	29.74
Missing due to decay	2415	0.79	1.00	3.50	483	0.72	0.20	0.70	250	10.34
Total	307,341	100.00			67,221	100.00			2418	100.00

^aCounts and proportions are unweighted
^b2013 Children’s Dental Health Survey included England, Wales, and Northern Ireland
^cCodes at tooth and child level represent the worst code in each tooth and child
^dIncluding sub-clinical decay and lesions seen only on radiographs

ISSN: 1472-6831