Comparison of two clinical approaches based on visual criteria for secondary caries assessments and treatment decisions in permanent posterior teeth

Table 5 Comparison between explanatory variables and the indications of restorations replacement (outcome) assessment by FDI and CARS criteria

Explanatory variables	Unadjusted PR (95%CI)	p	Adjusted PR (95%CI)	P
Variables related to the patient (3rd level)
Sex (ref.: male)			*
Female	1.41 (0.83–1.64)	0.206
Age (ref.: up to 30 yrs-old)			*
More than 30 yrs-old	1.01 (0.56–1.82)	0.978
DMF-T (quant. variable)	1.04 (1.00–1.08)	0.034	1.04 (1.00–1.08)	0.031
Caries activity (ref.: no)
Yes	1.35 (0.81–2.27)	0.251	1.62 (0.97–2.72)	0.067
Variables related to the restored tooth (2nd level)
Type of teeth (ref.: Molars)			*
Premolars	1.19 (0.75–1.88)	0.452
Dental arch (ref.: upper)			*
Lower	0.92 (0.61–1.41)	0.717
Number of surfaces restored (ref.: 1 surface)
2 surfaces	2.30 (1.42–3.72)	0.001	2.05 (1.25–3.37)	0.005
3 or more surfaces	2.60 (1.47–4.59)	0.001	2.19 (1.21–3.98)	0.010
Dental material (ref.: amalgam)
Composite resin	1.66 (1.05–2.64)	0.031	1.42 (0.87–2.30)	0.157
Variables related to the clinical evaluation (1st level)
Diagnostic method (ref.: CARS)
FDI system	5.23 (3.07–8.93)	< 0.001	5.22 (3.05–8.91)	< 0.001
Order of examinations (ref.: 1st examination)
2nd examination	1.02 (0.69–1.51)	0.904	0.95 (0.62–1.44)	0.809

PR = prevalence ratio; 95%CI = 95% confidence intervals; DMF-T = decayed, missed and filled permanent teeth
^*Variables not included in the final model

ISSN: 1472-6831