Impression Coping Meaning
Impression coping definition: A dental component that takes impressions for a dental implant by accurately positioning and measuring your patient’s implant.
Impression Coping Types
There are two impression coping types:
- Closed Tray: An easier approach that avoids locking the impression in the patient's mouth. After removing the impression, the coping remains in the mouth. When the material sets, unscrew the post from the implant and place it back into the impression to capture its position accurately.
- Open Tray: A more accurate method, especially for multiple implants or partially or fully edentulous patients. The impression coping is attached to the implants, with a retaining screw extending through an opening in the tray, and embeds itself into the impression material. Before removing the impression, unscrew the coping through the tray's opening so the coping stays within the impression when removed for precise replication of the implant positions.
Taking Impressions with an Impression Coping
Impression coping is vital to the dental implant procedure. When taking an impression, placing the impression coping onto the implant fixture or abutment allows the impression material to capture the implant's location accurately.
Typically, a transfer cap is placed over the implant or new fixture. This cap aids in transferring the position to a surgical guide, which in turn helps create a cleaner and more accurate dental crown installation, enhancing the efficiency of the process.
Once the impression is set and cast, impression coping guarantees replicating the implant abutment or fixture head’s exact position, providing a reliable template for the final restorative work.
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