Effects of Rigid and Nonrigid Connections between the Miniscrew and Anchorage Tooth on Dynamics, Efficacy, and Adverse Effects of Maxillary Second Molar Protraction: A Finite Element Analysis

Figure 11

Stresses of the miniscrew in different models: (a) model 1 with direct anchorage; (b) model 2 with rigid indirect anchorage; (c) model 3 with nonrigid indirect anchorage.

(a)

(b)

(c)