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  • Dental retainers designed for retention of matrix bands intended to contour and confine dental restorative materials. These retainers typically consist of metallic (typically stainless steel) devices that hold the matrix band during the restorative procedure; the retainer\'s shape and mechanical characteristics should match the characteristics of the matrix band used in the procedure (e.g., Tofflemire, Nystroem). Matrix band dental retainers are used temporarily during the restorative procedure; procedures using matrix bands without requiring retainers (i.e., retainerless matrix bands) are also available.
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