A Cutting Edge Design
Revolutionary Design for a Hassle-Free Experience
The Keles Keyless Expander (KKE) is a rapid palatal expander that features a built-in activation arm. It stands out from other palatal expanders by eliminating the need for a separate key, by its small size, and ease of use. This design offers numerous benefits, such as decreasing treatment duration and enhancing effective patient-friendly treatment by increasing compliance & comfort.
Quick Facts
No Key!
Patient Friendly
Small Size
Fast Treatment Duration
High Treatment Adherence
Intermittent Force
0.2mm per activation
Brought to you by the inventor of the Keles Slider & Keles Face Mask
Successfully treated over 1,000+ patients
The Keles Keyless Expander (KKE) consists of 9 pieces, its activation mechanism includes an arm (5), a screw (2), a spring (4), and a spring cap. The arm’s base and the screw’s center contain gears. The teeth of the 2 gears interlock since a spring pushes them together (this spring is housed within the spring cap and the arm). When activated with a finger, the arm rotates the screw, moving the two blocks outward, expanding 0.2mm. After the activation, the arm is pushed up, which disengages the teeth of both gears where the arm returns to its resting position and the screw stays stationary.
- The Unidirectional Screw System allows the expander to turn one way, like a unidirectional ratchet/wrench. With this system there is no screw back spiraling/reversing.
- If the doctor wants, the KKE can be reversed with the Reversal Kit
Keyless Design
Features a built-in activation arm that applies intermittent force when activated and expands 0.2mm per turn.
Full Activation: 1 Turn = 0.2mm
The upper restrictor sets the arm’s resting position, and activation completes when the lower restrictor meets the pin.
Upper Restrictor
Lower Restrictor
Maximum Expansion Locking System
When fully expanded, the stopper leans against the block's level change, preventing disassembly—a unique safety feature.
The “Stopper”
Block Level Change
1
PUSH THE ARM STRAIGHT DOWN
2
PULL THE ARM STRAIGHT UP
Can be performed either by the patient or by a guardian/parent.
This is a passive movement that brings the arm to its initial position for the next turn.
4-Arm Design
2-Arm Design
Hybrid Design
Bonded Design
| Keles Keyless Expander | Keles Keyless Expander | Removable Expanders | Traditional Fixed Expanders |
|---|---|---|---|
| Activation Mechanism | Built-in Activation arm | Multiple Stage Expanders | Screw & Key |
| Treatment Duration | Short | Long | Long |
| No Activation Failure ex: - no difficulty locating hole - no backwards turns, - no incomplete turns |
✔ | ✔ | ✖ |
| Patient-Friendly | ✔ | ✖ | ✖ |
| Convenient | ✔ | ✖ | ✖ |
| High Treatment Adherence | ✔ | ✖ | ✖ |
| Comfortable, Compact, & Small | ✔ | ✖ | ✖ |
| Reduced Clinic Visits | <✔ | ✖ | ✖ | Reduced Emergency Calls | ✔ | ✖ | ✖ | No Risk of loosing Appliance/Key | ✔ | ✖ | ✖ |