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Table 4 Residual bone height (RBH), initial torque value (ITV), implant stability quotient (ISQ), treatment period, and failure by stage of implant placement

From: Immediate implant placement following tooth extraction with simultaneous lateral sinus augmentation: a retrospective clinical study after at least 1 year of loading

  

Group

 

Variable

Overall (n = 35)

1-Stage (non-submerged) (n = 17)

2-Stage (submerged) (n = 18)

p

RBH

    

 Mean ± SD

5.62 ± 1.68

6.06 ± 2.11

5.19 ± 1.02

.1381

 Range

3.1-9.6

3.1-9.6

3.3-7.4

 

ITV

    

 Mean ± SD

30.14 ± 5.07

30.88 ± 5.66

29.44 ± 4.50

.2222

 Range

15-35

15-35

20-35

 

 15

1 (2.9)

1 (5.9)

0 (0.0)

.3423

 20

1 (2.9)

0 (0.0)

1 (5.6)

 

 25

8 (22.9)

3 (17.6)

5 (27.8)

 

 30

11 (31.4)

4 (23.5)

7 (38.9)

 

 > 35

14 (40.0)

9 (52.9)

5 (27.8)

 

ISQ

    

 Mean ± SD

76.68 ± 7.41

81.94 ± 4.45

72.00 ± 6.32

<.0011

 Range

60-90

75-90

60-85

 

Final impression (days)

    

 Mean ± SD

180.47 ± 51.11

170.13 ± 53.70

189.67 ± 48.33

.2012

 Range

86-346

86-302

131-346

 

Success or failure

    

 Success

34 (97.1)

16 (94.1)

18 (100.0)

.4863

 Failure

1 (2.9)

1 (5.9)

0 (0.0)

 
  1. Values are either frequency with percentage in parentheses or mean ± standard deviation
  2. 1P values were derived from independent t test
  3. 2P values were derived from Mann-Whitney’s U test
  4. 3P values were derived from Fisher’s exact test
  5. Shapiro-Wilk’s test was employed for test of normality assumption