Which instrument is used to trim acrylic resin during denture fabrication?

• A. Acrylic trimming bur
• B. End cutters
• C. Archwire
• D. Beebee crown shears

Answer: (A)

Trimming acrylic resin during denture fabrication requires a tool specifically designed for resin, because you need precise control to remove excess material and shape the denture base without overheating or damaging the acrylic. The acrylic trimming bur is made for this job, allowing careful removal of flash and smooth detailing along the borders when used with a slow-speed handpiece and proper irrigation. End cutters are used to cut wires, not resin. An archwire is an orthodontic component, not part of denture fabrication. Beebee crown shears trim crowns or metal restorations, not acrylic resin.