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Table 3 Mean ± SD of percentage initial and percentage post load RTL1 and percentage difference between initial and post load RTL1 for GIA and GIB

From: Effect of dynamic cyclic loading on screw loosening of retightened versus new abutment screw in both narrow and standard implants (in-vitro study)

% RTL 1 Standard diameter T-test
Retightening New screw t P value
Initial Range 31.35 33.4 31.33 33.33 0.098 0.924
Mean ± SD 32.518 ± 0.872 32.464 ± 0.869
Post load Range 36.7 42.5 36.67 42 0.106 0.918
Mean ± SD 39.362 ± 2.462 39.202 ± 2.316
Paired test P value 0.007* 0.006*  
% Difference Range 10.01 35.57 10.02 34.06 0.052 0.960
Mean ± SD 21.192 ± 9.569 20.886 ± 8.998
  1. *Statistical significant