Spark Erosion Duluth MN

Electric Discharge Machining (EDM, Spark Erosion)

spark erosion machine, advanced dental technology

The technology of Electric Discharge Machining (EDM), also known as Spark Erosion, has its origins from around World War I. The technology was refined during World War II, but was not applied to dentistry until recently with the increased popularity of dental implant tooth replacement solutions. EDM offers several important advantages to implant dentistry:

  1. Restorations can be built from the implant level rather than from the abutment level. This means that the emergence profiles (how the crown looks as it emerges from the gum line) are optimized, allowing for improved restoration esthetics.
  2. Building restorations from the implant level also means that because there are few abutment parts to purchase, restorations can be produced for less money. Ultimately, this means the patient can get a better restoration for less out-of-pocket expense.
  3. EDM also helps to offset the inevitable inaccuracies that occur during metal casting and the fusing of porcelains to metal substructures. This results in the more frequent use of passively fitting, screw-retained restorations. Screw retained restorations are more reliably recoverable should the restoration need maintenance. A better passive fit also means fewer maintenance problems; fewer episodes of screw loosening and screw breakage. With EDM, the mating surface of the implant restorations can reach a surface finish of 2-5 microns.

 Spark Erosion Machine at Dental Implant and Reconstructive Center

Implant Restoration fit before EDM

 Dr doug erickosn uses a Spark Erosion Machine at Dental Implant and Reconstructive Center

Implant Restoration fit after EDM


Photo demonstrating the use Electric Discharge Machining (EDM)

Electric Discharge Machining (EDM) brochure

  • Click here to view our brochure for more details about EDM.

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Curious About The Advanced Technology We Utilize?

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Call us: 218-722-8118