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Table 2 Means of measures

From: Evaluation of the stiffness characteristics of rapid palatal expander screws

1. Measurement

Kind of measure

Mean value

Length of posterior arms (including screw body)

41.3 mm

Length of anterior arms (including screw body)

32.5 mm

Angle between screw body and posterior arms

146.2°

Angle between screw body and anterior arms

144°

Distance between anterior and posterior arms

19.8 mm