A dental restorative formula selector including a formula matrix is disclosed. In an embodiment of the invention, a system for delivering security solutions is provided that includes at least one of the following: a radio frequency identification device, an identification mechanism, and an RF reader. A towline is connected at one end to the extraction machine and is configured for being supported by the operator at an opposite end thereof such that movement of the operator in the forward direction of travel causes tensioning of the towline. The device includes a plurality of separatorcomb elements extending around at least a portion of the opening of the recess, the separatorcomb elements being configured so as to engage with the fibers to separatecomb them simultaneously to, or after the application of, the product onto the fibers by the applicator portion.