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"Powdering is
the 'impression' and the most critical factor in the success of the CEREC
restoration. With the Powder Meister™ you can control this most
important step and produce predictable, consistent results. It's a winner!"
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Electrosurgery |
| Electrosurgery can be one of the most helpful additions to the CEREC technique. The clinician is routinely faced with restoring teeth with defective restorations and/or decay that extend below the gingivae. These areas can be quite difficult to expose to powdering with conventional techniques like packing retraction string. While the overall process of powdering and taking an optical image may be quicker than taking an impression and waiting for it to set, the actual powdering process takes longer than injecting impression material around the preparation. This added time makes it quite difficult to pack one or two pieces of retraction string, remove the string, and then powder before bleeding starts. This difficulty can be totally eliminated with electrosurgery. |
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| Subgingival Margin Before Electrosurgery | Subgingival Margin After Electrosurgery |
 | With the margine exposed with electrosurgery, the mesial cervical segment can be accurately identified and easily drawn. The combination of electrosurgery and good powdering allows for very accurate cervical fits. Note: The use of electrosurgery demands profound anesthesia for patient comfort. It is also important to avoid touching an adjacent metal restoration with the electrosurgery tip. The "sparking" sound that occurs when this happens is quite distracting to the patient. There are many size and shapes of electrosurgery tips available. Pick one that is small enough to slip interproximally without touching an adjacent metal restoration and yet stiff enough to avoid deflection under pressure. |
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