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We will use this opportunity to discuss fabrication of the preformed (i.e., prefabricated) band and loop space maintainer. The preformed band and loop space maintainer is used by many clinicians since the appliance can be completed and placed in a single appointment. The tooth is extracted and the preformed space maintainer is cemented in place at the same visit, after fitting and fabrication of the appliance at chairside. Using preformed space maintainer appliances eliminates all laboratory work and allows placement of appliances at the same appointment when the surgery is done.
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