Skip to main content

Table 1 Descriptive statistics of conditions during therapy including ABO scores

From: Clinical effects with customized brackets and CAD/CAM technology: a prospective controlled study

 

Total

Group 1

Group 2

p Values

(1–2)

Effect size

Patients [n (%)]

38 (100)

18 (47.4)

20 (52.6)

  

Sex [n (% of total)]

     

 Male

15 (39.5)

8 (21.1)

7 (18.4)

0.741a

0.097c

 Female

23 (60.5)

10 (26.3)

13 (34.2)

Age at the start of treatment (years)

14.3 [12.4; 22.2]

14.3 [13.1; 18.5]

14.3 [12.4; 22.2]

0.696b

0.044d

Little Irregularity Index

3.6 [0.5; 13.0]

4.7 [0.5; 8.0]

2.7 [1.6; 13.0]

0.051b

0.438d

Treatment time (months)

16.7 [10.1; 35.2]

16.7 [13.0; 30.1]

16.8 [10.1; 35.26]

0.654b

0.084d

Number of brackets lost

1.0 [0; 19]

2.0 [0; 19]

1 [0; 3]

0.035b

0.813d

Number of brackets repositioned

0 [0; 10]

0 [0; 5]

0.5 [0; 10]

0.024b

0.611d

Number of archwires

4.5 [3; 6]

6 [3; 6]

4 [3; 6]

 < 0.001b

1.3d

Number of archwire bends

2.5 [0; 14]

2 [0; 5]

5 [0; 14]

0.093b

0.789d

Number of appointments

15.0 [8; 28]

16.5 [10; 28]

14 [8; 25]

0.082b

0.494d

ABO scores before treatment

46 [30; 62]

46 [30; 62]

48 [32; 62]

0.874b

0.105d

ABO scores after treatment

13 [3; 24]

12 [3; 23]

16 [7; 24]

0.133b

0.442d

ABO score change within treatment

32 [16; 53]

32 [20; 53]

32 [16; 48]

0.806b

0.248d

  1. If not otherwise stated, median and range [minimum; maximum] were reported including effect sizes. The Mann–Whitney U test was applied to compare both groups: group 1 (individualized CAD/CAM system) and group 2 (conventional self-ligating system)
  2. aFisher’s exact test, bexact significance Mann–Whitney U test, cCohen’s w, dCohen’s d