Scraping The Walls of The Impression Tray Over time the material gets harder making it difficult to sink your teeth all the way into the material. Once the material is mixed it triggers a hardening process. Shallow dental impressions are usually the result of the person mixing the dental impression material for too long. At times it is close enough which allows us to forge the rest however it will be far from a perfect tray. The second most common shallow dental impression is where all teeth did not sink into the impression material. To avoid shallow molars be sure to position your thumbs on the back of the tray and push evenly into the teeth. Granted we can still make trays from this type of impression, your trays will not cover all of your molars. We receive 2 types of shallow dental impressions with the most common being the front teeth go deep enough, however the molars are not. The impression material was mixed until it was a solid blue and there is no noticeable distortion which is caused when removing the material before it has hardened. Notice the impression goes deeper than the gum lines on all teeth (front and rear). Prior to going into how not to take a dental impression let’s look at what a good dental impressions looks like. Of those dental impressions we receive from customers, roughly 1/29 are not satisfactory. In order to ensure you take the best possible dental impression it is strongly encouraged you read the instructions provided with your kit several times prior to taking the impressions.
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