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Table 3 Surface roughness and water contact angle with respect to surface type

From: Orthodontic bonding procedures significantly influence biofilm composition

 Bovine incisor
(BI)
Etching
(ET)
Primer
(PR)
Transbond XT
(AD)
Multiple
Comparisons
Surface roughness (μm)1.61 ± 0.223.50 ± 0.300.32 ± 0.040.11 ± 0.00AD < PR < BI < ET
Water contact angle (degree)56.61 ± 2.5030.08 ± 2.9446.59 ± 1.5172.47 ± 1.62ET < PR < BI < AD
  1. The Kruskal-Wallis test was used to determine differences among the four groups and multiple comparisons were performed using the Mann-Whitney tests with the Bonferroni correction at a significant level of α < 0.05.
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