Description
Gregg Plastic Filling Instruments
A Gregg plastic filling instrument carries soft restorative material to the preparation and shapes it before it sets. Intrace USA offers two Gregg patterns, labelled 2/3 and 4/5, which our supplier lists among its set components. Both are stainless steel and stocked in Atlanta, Georgia.
Reading the 2/3 and 4/5 Labels
Paired numbers on a plastic filling instrument usually describe the two working ends of a double-ended tool. So the 2/3 carries one pair of Gregg figures, and the 4/5 carries another. The supplier names them only by number, without written dimensions. Therefore, compare the two photos to see which end shapes suit the material and cavity sizes you place most.
Choosing Between Them
Start with the step in your restorative routine that needs the most control. For example, some clinicians prefer one pattern for carrying material into a proximal box and another for shaping the surface. Then look at your current tray: if a Gregg instrument already sits there, match its number first. Many offices eventually keep both, because the two patterns complement each other.
Handling Soft Material Cleanly
Plastic filling instruments work best when material slides off the end without dragging. Wipe the working ends frequently during placement, since set residue makes the next increment stick. Also, keep the ends clean before sterilizing, because baked-on material is hard to remove later. A well-kept Gregg instrument stays smooth through many restorations.
US Inspection and Three-Year Promise
Each Gregg pattern passes a hands-on review by Intrace USA staff in the United States. In addition, Gregg 2/3 and 4/5 each hold three years against manufacturing defects; we replace a faulty end or handle. The instruments ship unsterilized; clean them and run a validated autoclave cycle before restorative use.
Steel quality follows ASTM F899. Gregg owners often browse our Diagnostic, Periodontal & Restorative Instruments. For carving after placement, add the Hollenback Carvers. Ordering help lives in our FAQs.
Gregg instruments are meant for trained dental clinicians; our page on care and sterilization and the delivery overview have the details.







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