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Table 1 Results for the main effects of comparisons 1-3

From: Analysing the potential of hydrophilic adhesive systems to optimise orthodontic bracket rebonding

Comparison

Main effect(s)

SBS

p-value a

ARI

p-value a

Enamel fractures

p-value b

Pairwise comparisons

Part 1 - Conventional orthodontic bonding systems

Group (4 levels)

< 0.0001

0.2734

0.0054

Statistically significant differences are indicated in Fig. 2a-c.

Part 2 - Strength enhancing orthodontic bonding systems

Primer (2 levels)

0.0014

< 0.0001

0.0046

Statistically significant differences are indicated in Fig. 3a-c.

Rebonding (2 levels)

< 0.0001

0.0043

0.8798

Primer*Rebonding

0.2675

0.0003

0.1629

Part 3 - Comparison of different rebonding systems

Group (7 Levels)

< 0.0001

< 0.0001

0.0008

Statistically significant differences are indicated in Fig. 4a-c.

  1. a The p-values for the main effects were obtained from a linear regression model
  2. b The p-values for the main effects were obtained from a logistic regression model with Firth’s bias correction.