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Progress in Orthodontics

Table 2 Comparison between groups A and B of detachment number in the upper arch

From: A 15-month evaluation of bond failures of orthodontic brackets bonded with direct versus indirect bonding technique: a clinical trial

 

Upper

Total upper arch

Upper anterior section

Upper posterior section

Group

   

 A

396-11

198-2

198-9

2.77%

1.01%

4.54%

 B

228-4

114-1

114-3

1.75%

0.88%

2.63%

Total

624-15

312-3

312-12

2.40%

0.96%

3.85%

Chi-squared test

ns

ns

ns

  1. Group A: bonded with the direct technique; group B: bonded with the indirect technique. Detachment number is considered in total and in sections. The number of bonded brackets and bond failure are reported and below the detachment percentage. ns, not significant.
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