Which of the following is a benefit of using a custom impression tray?

• A. Reduced material cost
• B. Improved accuracy and tissue management
• C. Higher patient discomfort
• D. Requires fewer impressions

Answer: (B)

Using a custom impression tray provides a snug, arch-specific fit that stabilizes the impression material and allows a uniform thickness throughout the impression. This stability reduces distortion during removal and helps the material capture fine details, producing a more faithful replica of the teeth and surrounding tissues. It also supports controlled border molding and soft tissue management, letting you guide tissue away from the margins so the prepared areas are recorded accurately. These factors—precise detail capture and better tissue control—directly translate to higher overall accuracy, which is essential for correctly fitting crowns, bridges, or other prostheses.

The other options don’t reflect the primary advantage: while cost, comfort, or the number of impressions can be influenced in practice, they aren’t the main benefit of a custom tray, and the emphasis here is on improving accuracy and tissue management.