Skip to main content

Table 5 Secondary caries evaluation

From: Comparing zirconia to anterior strip crowns in primary anterior teeth in children: a randomized clinical trial

Chi-square test

 

Zirconia crowns

Strip crowns

p-value

Recurrent caries

    

At 3 months

No caries present

60 (100.0%)

60 (100.0%)

N/Ab

At 6 months

No caries present

59 (100.0%)

60 (100.0%)

N/Ab

At 12 months

No caries present

58 (100.0%)

56 (93.3%)

0.135

 

Caries present

0 (0.0%)

4 (6.7%)

 

Friedman test

Mean rank

Total cases

Zirconia crown

Strip crown

Baseline

2.48

2.50

2.47

At 3 months

2.48

2.50

2.47

At 6 months

2.48

2.50

2.47

At 12 moths

2.55

2.50

2.60

p-value

0.007a

N/Ab

0.007a

  1. aSignificant using Chi-Square Test @ < 0.05 level
  2. bNo statistics are computed because variable is a constant
Back to article page

BMC Oral Health

ISSN: 1472-6831

Contact us