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1. Which air scalers can be used with EDDY?
2. Why does EDDY not fit on KaVo SONICflex 2008 but on the prior model KaVo SONICflex 2003?
KaVo SONICflex is 2003 compatible with EDDY [M3 thread]. KaVo SONICflex quick 2008 has a quick coupling with only one thread gear which is not suitable for EDDY’s plastic thread.
3. Which coupling is necessary to use the W&H ZA-55 air scaler models?
The W&H air scaler models are compatible with all KaVo MultiFlex- respectively Sirona-couplings. In all other cases, the air scaler model has to match the type of coupling of the dental unit.
4. Is EDDY compatible with SIROSONIC L?
Unfortunately it is not compatible with EDDY as it is a ultrasonic device. EDDY is driven in a significant lower frequency range of 5,400 – 6,600 Hz compared to ultrasound (25,000 – 30,000 Hz). EDDY is driven by an air scaler.
5. What dental units are available on the market and which connection is necessary for EDDY?
Dental units with turbine and with micro-motor. Standard is a dental unit with two micro-motors and one turbine. If a dental unit does not have a turbine connection, EDDY cannot be used.
6. Basically, how do I proceed with irrigation with EDDY?
The use of EDDY is described in the IFU and Step by Step Card.
7. Are EDDY tips reusable?
EDDY is a sterile single-use product / not reusable.
8. Are there any restrictions when using EDDY?
Care must be taken to ensure that EDDY is inserted into the root canal only up to 1 mm short of the apex to reduce the risk of damaging the apex area / bleeding and of extrusion of irrigant beyond the apex.
9. Which solutions can be used for irrigation?
Only use irrigation solutions commonly used in endodontics to irrigate the root canal, e.g. EDTA 17 % or NaOCl solution [5.25% max].
10. At which frequency should EDDY be driven?
The frequency of the air scaler should be comprised between 5,400 and 6,600 Hz [Air supply according to air scaler IFU].
11. How to prevent NaOCI solution spillage during irrigation activation with EDDY?
Always use a rubber dam, protect your clothes and use eye protection. Avoid spillage by having the dental assistant hold a saliva ejector (without covering) next to the tooth. Pay attention that the irrigation solution is introduced into the pulp cavity and not sucked directly into the saliva ejector. Patients shall also wear eye protection and protection for their clothes.
12. How could an EDDY fragment be removed from the root canal?
The fragment can be removed by using a Hedstroem file, a K-file or another instrument with similar taper or a paper point (adhesion forces). This is applicable when the fragment is already floating and not in case the fragment is stuck in the apical region.
13. Is it possible to remove a broken EDDY screw thread fragment from the air scaler? If so, how?
Yes, a broken EDDY screw thread segment can be removed from the air scaler by using a screwdriver with flat tip of 2 - 2.5 mm width. The tip should be pushed slowly into the broken segment cross-section with manual pressure, allowing the airscaler to be
unscrewed.
14. What happens with the water supply of the dental unit?
The water inflow can be deactivated quickly and easily. If the water supply has not been stopped manually, some water leakage can be expected.
15. Can EDDY be applied to pregnant patients and in patients with cardiac pacemakers?
Safety and effectiveness in pregnant women and children have not been established. Always also consult the IFU of the air scaler.
16. Why is there only one size?
One size fits all. Due to its high flexibility, EDDY fits basically every canal anatomy.
17. Do you offer EDDY also in shorter length?
No, there is only one EDDY size. In case of short or difficult to reach canals, it is possible
to pre-bend the tip without kinking it.
