The item can be under 131 Celsius, not too much time, pls try to do it by disinfectant. Usage:It is used during the taking picture of illness teeth, it help dentists to find the exact position to take pictures to make the illness teeth complete show in the pictures. Applied for or smaller dental films and wireless imaging plates (digital sensor). During taking picture, it's better to put the film in the exactly position for making the ill tooth image displayed in the middle of the film. Reduces Patient's Discomfort and Allows for Better Accuracy and Ease of X-ray Taking Procedure. Specifications: Name:dental locator Colour:As shown in color Material:plastic Package Contents: 1 * dental locator Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.