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Table 1 Retention in (Newton) between the two studied groups at various measurement times

From: Retention of bar clip attachment for mandibular implant overdenture

 

PEEK clip

(M ± SD)

Nylon clip

(M ± SD)

P value

T0

42.08 ± 1.52

16.08 ± 0.68

0.000*

T1

19.26 ± 1.15

15.78 ± 0.93

0.000*

T2

19.90 ± 0.73

15.22 ± 0.53

0.000*

T3

17.37 ± 1.07

16.56 ± 0.88

0.055 NS

  1. T0, at time of overdenture insertion; T1, after 1 year of use; T2, after 2 years of use; T3, after 3 years of use; NS, Statistically not significant (p ≥ 0.05)