Figure 2.

Fabrication of setup model and thermoplastic appliance for measuring orthodontic force. (a) Impression of maxillary teeth by silicone rubber impression material. (b) Trimmed cast made from high-quality stone. (c) Left maxillary central incisor dissected with diamond disk. (d and f) Adjusted activation (0.5 mm or 1.0 mm) using silicone rubber impression material and fixed with high-quality stone. (g and h) Thermoplastic appliance made with pressure-molding machine. (i) Placement of thermoplastic appliance.