Strobex Ultron - Electrosurgery Unit
In some cases, caries, fractures or defective restorations are sub-gingival. Teeth with caries is just below the gingival crest can occasionally be treated by judicious use of electrosurgery or gingivoplasty where hyperplastic or excessive gingival tissue is removed to allow placement of a rubber dam clamp.
This Whaledent Strobex Ultron unit is 15 years old. It has the advantage of foot switch and/or handpiece activation. Reliability has been good with the exception of cracks in the handpiece that required replacing and wire fatigue in the connection to the grounding pad. If you're going to do endo on broken down teeth, electrosurgery (or laser surgery) is an important tool to have.
Update Dec. 04
The unit pictured is no longer being made and parts have been hard to come by. Companies such as Ellman, Parkell, and Macan produce dedicated dental units. However, many of these are being replaced by lasers, which offer better alternatives for gingival sculpting and do not the have injurious effects of electrical energy.
Update Apr 07
I was speaking with a Coltene Whaledent representative a the Amer. Acad. or Endodontics meeting in Phila. He informed me that parts, tips, cables and service are still available for this unit! Contact Coltene Whaledent for further details.