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Mattress spring - is free end spring. It used for labial movement of anterior teeth in crossbite | Orthodontic appliances, Crossbite, Orthodontics
Coil Spring Braces: Types, Purpose, How Long They Last During the orthodontic treatment, you may get various attachments including different types of... | By Nikaeen Orthodontics | Facebook
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February's Tip: Peripherals in Straight Wire System Back to Basics Part XII Open Coil Spring - International Association for Orthodontics % %
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