Barberia 2008.

Study characteristics
Patient Sampling	Method of sampling: consecutive Included conditions: unclear Teeth: primary and permanent molars Sealants: no Surface: occlusal
Patient characteristics and setting	Age: 6 to 14 years Sex: not reported Ethnicity: not reported Country: Spain Setting: attending dental clinic Number of participants/teeth/sites: 320 teeth Prevalence: enamel 0.22, dentine 0.08
Index tests	Category of test: DIAGNOdent Sequence of test(s): index tests performed after reference standard, but examiners were blind to visual examination Examiner training and calibration: not reported Teeth cleaning prior to examination: not reported Tooth drying prior to examination: 2 seconds Threshold applied: 0‐4 healthy, 5‐25 enamel, 26+ dentine Device specifics: "same tip used for all"
Target condition and reference standard(s)	Category: visual Sequence of index test and reference standard: index test then reference standard Training of examiner: no but experienced examiner Blinding to index test: yes Multiple tests: no Site selection: unclear Target condition: no treatment required, potential for remineralisation, restoration required
Flow and timing	Participants with index test but no reference standard: 0 Participants with reference standard but no index test: 0 Time interval between tests: minimal Participants receiving both tests but excluded from results: 0
Comparative
Notes
Methodological quality
Item	Authors' judgement	Risk of bias	Applicability concerns
DOMAIN 1: Patient Selection
Was a consecutive or random sample of patients enrolled?	Yes
Was a case‐control design avoided?	Yes
Did the study avoid inappropriate exclusions?	Unclear
Could the selection of patients have introduced bias?		Unclear risk
Are there concerns that the included patients and setting do not match the review question?			Low concern
DOMAIN 2: Index Test (All)
Were the index test results interpreted without knowledge of the results of the reference standard?	Yes
If a threshold was used, was it pre‐specified?	Yes
If multiple tests were applied were different examiners used for each (in vivo)?
Could the conduct or interpretation of the index test have introduced bias?		Low risk
Are there concerns that the index test, its conduct, or interpretation differ from the review question?			Low concern
DOMAIN 2: Index Test (Green fluorescence)
DOMAIN 2: Index Test (Blue fluorescence)
DOMAIN 2: Index Test (Red fluorescence)
Were the index test results interpreted without knowledge of the results of the reference standard?	Yes
If a threshold was used, was it pre‐specified?	Yes
If multiple tests were applied were different examiners used for each (in vivo)?
Could the conduct or interpretation of the index test have introduced bias?		Low risk
Are there concerns that the index test, its conduct, or interpretation differ from the review question?			Low concern
DOMAIN 3: Reference Standard
Is the reference standards likely to correctly classify the target condition?	No
Were the reference standard results interpreted without knowledge of the results of the index tests?	Yes
Could the reference standard, its conduct, or its interpretation have introduced bias?		High risk
Are there concerns that the target condition as defined by the reference standard does not match the question?			Low concern
DOMAIN 4: Flow and Timing
Was there an appropriate interval between index test and reference standard?	Yes
Did all patients receive the same reference standard?	Yes
Were all patients included in the analysis?	Yes
Could the patient flow have introduced bias?		Low risk