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ePaper created 2017-11-24, 11:00:53 | version 1.38.0
interview feature | EDDY, a sonic tip produced by VDW. chlorite, I use 95 per cent ethanol to dry the canal. I do not use citric acid and chlorhexidine, but prefer EDTA to remove the smear layer. How did you activate the irrigant before you began using EDDY? I tried all activation tools before EDDY, as irrigation activation has been one of my favourite methods ever since I was introduced to it. Before EDDY, I used pas- sive ultrasonic activation and still use it sometimes in my Italian practice. Now, I use EDDY for most of my cases. How important is it to have a flexible tip? EDDY is quite different from passive ultrasonic tips. With EDDY, one can combine two different things. First, one has an activation protocol that some studies have shown is at least as good as passive ultrasonic activation. Second, one has a gentle mechanical ac- tion on the canal walls. This is why I love EDDY. One can work on the wall and the shear stress seems to be impressive when using it. It is also very safe. What do you think about the polyamide material from which EDDY is made? It works very well. It is a very good material for working after shaping, as one cannot damage the ca- nal wall. Also, the possibility of tip fracture is low if one works inside the canal. How did you learn about EDDY? I tried everything in terms of activation. The manu- facturer asked me to test it before its impending launch in Italy and I was happy to do so. At first, I tried it with great care—and it instantly proved to be effec- tive. I inspected the walls of the canal and was im- pressed by the level of the cleanness of the walls. canals. I do not use a shaping instrument, but just one file for length determination and then continue with EDDY. One can also remove debris and the smear layer easily by activating the solution through the device. Every dentist will appreciate how EDDY works under the microscope. How does EDDY work, and how long does the activation need? I use EDDY in the same way as passive ultrasonic ir- rigation, applying three to four cycles of 30 seconds for each canal. I help the EDTA to contact the dental surface with EDDY for 15–20 seconds. After this, I ac- tivate every sodium hypochlorite rinse for 30 seconds. The number of cycles depends on the kind of canal. If I think that there is some necrotic tissue or a compli- cated anatomy, I use more than three cycles. If it is an easy case, I still use three cycles of activation. Would you recommend EDDY? Absolutely. It is a great solution, being inexpensive, easy to use and effective. One can effectively promote the contact of the irrigant with the dental tissue. This is one of the main ways in which the irrigating solu- tion should work. One can achieve a very impressive shear stress so that is one of the best ways to activate the solution and clean the canal. EDDY requires an air scaler. Should this be an obstacle to making the switch to this device? Honestly, buying an air scaler is not a high-cost in- vestment. As a general practitioner, one can use an air scaler for a number of applications, including proph- ylaxis, endodontics, periodontics and minimally inva- sive therapy. Personally, I use it for bone surgery. It is not as expensive as a piezoelectric surgery unit or a laser. I think that the cost benefits of EDDY and an air scaler are fantastic. With EDDY, one can work in all canals, and some- times I like to work only with the tip in large and wide Thank you very much for the interview. roots 4 2017 33