ORTHODONTIC APPLIANCES To view more details, please click on the appliance type. Schwarz Aplliances Hawley Retainers with Adams Claps Hilgers Pendex T-Rex Appliance Lower Fixed Expander Hilgers Pendex T-Rex Appliance Ideal for palatal arch expansion and molar distalization. For maximum stability while expanding the arch, a wire is soldered (hence the T-Rex design) onto the mesial of each molar band while the other end of the wire is anchored in the palatal acrylic. The titanium molybdenum T-Rex wires can be utilized in conjunction with .036 springs for continuous, light force against the molars. Once the expansion is accomplished, the T-Rex wires are cut and the pendulum loops are activated to begin distalizing the molars.
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