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Table 6 Cox regression model for assessment of the effect of type of retainer wire on its survival in the mandible

From: Survival analysis of three types of maxillary and mandibular bonded orthodontic retainers: a retrospective cohort

  

Haz. ratio

95% conf. interval

P value

Lower

Upper

Retainer

Retainium (ref)

1

–

–

–

Orthoflex

1.450

.721

2.913

0.296

Bond-A-Braid

.815

.378

1.757

0.602

Age

.994

.949

1.040

0.800

 

Sex

Female (ref)

1

–

–

–

Male

.826

.409

1.667

0.594

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BMC Oral Health

ISSN: 1472-6831

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