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Progress in Orthodontics

Table 4 Bond failure rates for upper and lower dental arches*

From: Clinical performance of uncoated and precoated polymer mesh base ceramic brackets

 

No failure

Failure

Failure rate (%)

Log-rank test

Upper

370

10

2.6

0.007

Lower

354

26

6.8

  1. *χ2 = 7.465 on 1 df; P = 0.006
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