Facial-oral Flow Defects

Working time exceeded, flowability already impaired +

Select material with sufficient working time and pay attention to storage temperature. Working times are reduced due to higher temperatures of the product, while intra-oral setting times might be longer if the temperature of the product is lower.

Impression tray does not suppirt the flow of impression material +

Use rigid trays with correct size. If necessary, apply facial/oral, occlusal or dorsal stops.

Too fast tray insertion +

Insert the tray slowly, taking at least 5 seconds, to reduce flow defects.

Tray repositioning after seating +

Stabilize the tray after seating, avoid any movements. When taking an impression of the upper jaw, you can easily find support on the chin or cheek bone of the patient. With impressions of the lower jaw it is recommended to support the tray on the mandibula. Patients should close their mouth as much as possible without biting down on the tray to avoid deformation of the mandibula and, thus, errors in the impression. Do not try to correct the position of the tray after insertion.