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Table 5 For detect differences of survival rate, success rate, marginal bone loss, and stability among length of implants

From: Retrospective clinical study of ultrawide implants more than 6 mm in diameter

Length (mm)

7.0

8.0

10.0

12.0

P value

N

Mean

SD

N

Mean

SD

N

Mean

SD

N

Mean

SD

Survival rate

6

100 %

0.00

21

100 %

0.00

23

100 %

0.00

8

87.50 %

0.35

NS

Success rate

6

100 %

0.00

21

95.24 %

0.22

23

95.65 %

0.21

8

87.50 %

0.35

NS

Primary stability

6

77.33

9.77

21

72.14

10.10

23

75.52

9.27

8

65.25

7.40

+

Secondary stability

6

84.42

3.50

17

76.85

8.59

17

78.97

8.45

7

69.43

9.48

+

Marginal bone loss

 12 months

5

0.00

0.00

21

0.02

0.10

21

0.00

0.00

7

0.08

0.20

NS

 24 months

4

0.00

0.00

16

0.00

0.00

16

0.03

0.09

6

0.25

0.60

NS

 Marginal bone lossa

6

0.00 %

0.00

21

4.76 %

0.22

23

4.35 %

0.22

8

12.50 %

0.35

NS

  1. NS nonsignificant
  2. aAbove annually 0.2 mm until final follow-up date
  3. +Kruskal-Wallis test is significant at the 0.05 level (two-tailed)