10/28/2023 0 Comments Perfect alginate impression![]() The accuracy of the silicon sections enables us to easily locate the patient’s preoperative position.ĩ. Leave enough teeth for the patient to easily find centric and then syringe your bite material into these localised areas. If you are preparing more than one tooth and are concerned about losing the bite, then we recommend that you prepare a few teeth first, evenly spaced around the arch. You need to syringe a good quality silicon bite material into the area of the preparation. When taking the bite please throw away the wax. We can be working in the belief that we have a 2mm gap when the reality is we only have 1mm.Ĩ. Technicians cannot always tell if an opposing arch is distorted. ![]() Remember, an accurate opposing impression is just as important as an accurate working impression. By the time your alginate has sat in the surgery for half a day, been with a courier or in the post for several hours, then waited to slot into the laboratory’s work schedule, it will not have the integrity it had when it first came out of the mouth. Alginate distorts over time, absorbing or losing moisture if not kept in perfect conditions. We always recommend using the same silicon impression materials and techniques for the opposing arch. – Place the tray and use an even, sustained pressure. – Syringe the remaining soft body into the prepared indent. This helps to relieve pressure when the impression is placed. – Prepare a deep indent in the putty giving space for the teeth. – Place the putty in the tray around the whole arch. – Syringe the soft body around the preparation. A good one stage technique would be as follows: ![]() Two stage techniques are considerably more technique sensitive. If the correct pressure relief has not been provided, distortion will occur. ![]() Two stage techniques allow for the compression of an already set material against a flowing material. We get no such help to pick out the margin.Ħ. Remember you can see the contrast of tooth and gum. You really don’t want us guessing where the edge of your preparation is. ![]()
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