PFTE tape is used in dentistry primarily for?

• A. To seal impression trays
• B. To protect surfaces from sticking during procedures
• C. To wrap around wires before bending
• D. To color-code bands

Answer: (B)

PTFE tape takes advantage of a non-stick, low-friction surface. In dental practice, its main role is to protect surfaces from materials sticking to them during procedures. Because the tape provides a smooth, inert barrier, substances like impression materials or adhesives won’t cling to treated surfaces, making removal clean and simple and helping preserve the accuracy and integrity of trays, matrices, or other workpieces. This non-stick property is why it’s used as a separator or protective layer in situations where you want to prevent adhesion, rather than for sealing trays, wrapping wires, or color-coding bands, which rely on other materials or methods.