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Table 2 Factors influencing sinus mucosal thickness

From: Factors influencing the sinus membrane thickness in edentulous regions: a cone-beam computed tomography study

Variable

Category (mm)

P value

Sex

Male: 1.80 ± 1.60

0.0078**

Female: 0.76 ± 0.92

Age

< 55 years: 0.78 ± 1.08

0.119

≥ 55 years: 1.29 ± 1.36

Systemic diseases

+: 1.37 ± 1.34

0.24

−: 1.02 ± 1.26

Time after tooth extraction

< 6 months: 1.76 ± 1.47

0.0075**

≥ 6 months: 0.74 ± 1.07

Smoking

+: 1.67 ± 1.58

0.067

−:0.93 ± 1.11

Reason for tooth extraction

per (+): 1.66 ± 1.64

0.020*

per (−): 0.79 ± 0.98

Residual bone height

< 2.5 mm: 0.94 ± 1.24

0.117

≥ 2.5 mm: 1.50 ± 1.33

Septa

+: 2.39 ± 1.80

0.0076**

−:0.91 ± 1.13

Nasal division

+: 1.65 ± 1.58

0.038*

−:0.86 ± 1.20

  1. *p < 0.05; **p < 0.01