Skip to main content

Table 2 Clinical parameters of patients with FOA or Invisalign® before and during orthodontic treatment

From: Braces versus Invisalign®: gingival parameters and patients’ satisfaction during treatment: a cross-sectional study

Clinical parameter

FOA

Invisalign®

p-value

API (%) - before treatment

19.6 ± 7.0

16.3 ± 9.6

0.068

API (%) - during treatment

37.7 ± 21.9

27.8 ± 24.6

0.108

Relative difference

18.1 ± 17.2

11.5 ± 17.2

0.170*

SBI (%) - before treatment

7.2 ± 4.4

6.6 ± 3.2

0.503

SBI (%) - during treatment

15.2 ± 7.6

7.6 ± 4.1

≤0.001

Relative difference

8.0 ± 6.6

1.0 ± 1.0

≤0.001*

GI - before treatment

0.29 ± 0.24

0.27 ± 0.25

0.910

GI - during treatment

0.54 ± 0.50

0.35 ± 0.34

0.072

Relative difference

0.25 ± 0.30

0.07 ± 0.12

0.001*

  1. Values represent descriptive mean ± standard deviation
  2. *Adjusted for age