Reheat-treated Spring NiTi File

Spring Endo File
Hi Plus
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Increased safety and unique flexibility

It is a new concept of endopile designed to dramatically reduce tip fracture without reducing the cutting force and to facilitate removal of the fractured part as fracture occurs at the spring part located outside the root canal even if fracture occurs.

Spring Endo File Video

Spring Endo File Safety Flexibility Cutting Force Increased Durability Spring Endo File Safety Flexibility Cutting Force Increased Durability Spring Endo File Safety Flexibility Cutting Force Increased Durability Spring Endo File Safety Flexibility Cutting Force Increased Durability Spring Endo File Safety Flexibility Cutting Force Increased Durability Spring Endo File Safety Flexibility Cutting Force Increased Durability

Problems of existing products

Often a situation where the tip is broken and gets stuck in the root canal

If the “fracture occurs at the tip”, more than 95% of the cases, the failure to remove the fragment may increase the likelihood of a medical dispute. Existing products without a spring structure often fracture the tip of the cutting edge at the apical end during root canal treatment, and it is often difficult to remove it.It is not easy to prevent tip fracture as the operator cannot detect that the cutting edge is overloaded. In patients with poor mouth opening, both the patient and the surgeon have a hard time treating the posterior teeth. Due to the straightness of the file, a large amount of tooth removal is required. Since there is no structure to buffer the overload applied to the cutting edge, the possibility of tip fracture during repeated reuse increases significantly.

Advantages

Increased safety

Spring structure buffers overload on file

While the load is dispersed towards the spring, the micro vibration of the spring when rotating provides a much easier fragment removal with the file because the force of the fragment being stuck inside the canal is not strong compared to the existing file without spring structure.
Exisiting Endo File
Denflex Spring Endo File

Unique Flexibility

Even with the spring part bent(60-70 degree), it is able to send 100% rotational power

It is useful for the posterior part of patients who cannot open their mouth wide.
Even if the root canal is bent away from the central axis of the tooth, excessive tooth removal is not necessary.

Exisiting Endo File
Denflex Spring Endo File

Optimized for a curved root canal

Cutting Force

Micro-vibration of the spring increases the cutting power.

It improves cutting power by generating micro-vibration.
Due to the micro-vibration, the screw-in phenomenon into the canal of the blade area is significantly reduced

Increased durability

The spring structure buffers the overload applied to the file.

Our Spring Endo File has increased the number of uses compared to general Endo files, and shows improved results compared to general files in Cyclic Fatigue Resistance Test.

Group Cyclic Fatigue Resistance / NCF
Spring File #25 1841 ± 489
Non-Spring File #25 1450 ± 386
Our test shows that it has the possibility of repeated use of more than 15canal, but it is desirable to set the number of use within 10canal per file as the cutting edge becomes dull as the number of uses increases and the cutting performance decreases.
Division Probability of breaking tip
Existing Endo File 100%
Spring Endo File 40%

SPECIFICATION

Product Information

Spring Endo File Hi Plus (Bendable)

CW: Clockwise | CR: Counterclockwise
ISO Size 23MM 25MM
10
DFSEF-B-L2310A2-CW(CR)
DFSEF-B-L2510A2-CW(CR)
15
DFSEF-B-L2315A4-CW(CR)
DFSEF-B-L2515A4-CW(CR)
20
DFSEF-B-L2320A6-CW(CR)
DFSEF-B-L2520A6-CW(CR)
25
DFSEF-B-L2325A4-CW(CR)
DFSEF-B-L2325A6-CW(CR)
DFSEF-B-L2525A4-CW(CR)
DFSEF-B-L2525A6-CW(CR)
30
DFSEF-B-L2330A4-CW(CR)
DFSEF-B-L2330A6-CW(CR)
DFSEF-B-L2530A4-CW(CR)
DFSEF-B-L2530A6-CW(CR)
40
DFSEF-B-L2540A5-CW(CR)
50
DFSEF-B-L2550A5-CW(CR)

Spring Endo File (Standard)

CW: Clockwise | CR: Counterclockwise
ISO Size 23MM 25MM
PATH
DFSEF-P-L2300-SD
DFSEF-P-L2500-SD
10
DFSEF-S-L2310A2-CW(CR)
DFSEF-S-L2510A2-CW(CR)
15
DFSEF-S-L2315A4-CW(CR)
DFSEF-S-L2515A4-CW(CR)
20
DFSEF-S-L2320A6-CW(CR)
DFSEF-S-L2520A6-CW(CR)
25
DFSEF-S-L2325A4-CW(CR)
DFSEF-S-L2325A6-CW(CR)
DFSEF-S-L2525A4-CW(CR)
DFSEF-S-L2525A6-CW(CR)
30
DFSEF-S-L2330A4-CW(CR)
DFSEF-S-L2330A6-CW(CR)
DFSEF-S-L2530A4-CW(CR)
DFSEF-S-L2530A6-CW(CR)
40
DFSEF-S-L2540A5-CW(CR)
50
DFSEF-S-L2550A5-CW(CR)