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Table 5.4 continued<br />

Author<br />

Year,<br />

reference<br />

Country<br />

Sample, n<br />

Age (years)<br />

at start<br />

Teeth<br />

tested,<br />

Caries<br />

prevalence<br />

at<br />

start<br />

Obs<br />

time<br />

(yrs)<br />

Drop-out<br />

Explained<br />

Diagnostic<br />

criteria<br />

Examiner<br />

(n)<br />

Reliability<br />

Petti et al<br />

2000 [77]<br />

Italy<br />

3 primary<br />

schools<br />

in Rome<br />

caries-free<br />

only included<br />

(39% of total<br />

sample)<br />

n: 314<br />

Age: 6–7<br />

Primary<br />

and permanent<br />

Mean<br />

dft: 1.6<br />

DMFT: 0.6<br />

Increment<br />

Mean new<br />

dmft: 0.5,<br />

Mean new<br />

DMFT: 0.2<br />

2 3 WHO<br />

1987<br />

BW<br />

3 examiners<br />

Yes<br />

Pienihäkkinen<br />

1987 [44]<br />

Finland<br />

Institutionalised<br />

Hungarian<br />

children<br />

1. Xylitol<br />

group<br />

2. F and control<br />

group<br />

n: 276<br />

Age: 7–12<br />

Permanent<br />

Mean<br />

D en MFS:<br />

1.8<br />

Increment<br />

Mean new<br />

D en MFS:<br />

2.0<br />

2 30<br />

Analysed<br />

WHO<br />

No BW<br />

(fibre<br />

optics)<br />

7 examiners<br />

at<br />

start,<br />

3 thereafter<br />

Yes<br />

Pienihäkkinen<br />

1987 [45]<br />

Finland<br />

Institutionalised<br />

Hungarian<br />

children<br />

(n=350)<br />

1. Xylitol group<br />

2. F and control<br />

group<br />

n: 276<br />

Age: 7–12<br />

Permanent<br />

Mean<br />

D en MFS:<br />

1.8<br />

Increment<br />

Mean new<br />

D en MFS:<br />

2.0<br />

2 19 WHO<br />

No BW<br />

(fibre<br />

optics)<br />

7 examiners<br />

at<br />

start,<br />

3 thereafter<br />

Yes<br />

262<br />

Karies – diagnostik, riskbedömning och icke-invasiv behandling

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