rocky mountain orthodonticsTM

Synergistic Solutions for Progressive OrthodonticsTM

800.525.6375 | www.rmortho.com650 West Colfax Avenue, Denver, Colorado 80204P 303.592.8200 F 303.592.8209 E sales@rmortho.com

Liberty Bielle®

Liberty Bielle® Fixed, the newest addition to the RMO® Functional EducationTM System, is a modern Herbst-type appliance. Its unique configurations allow it to rotate 360 degrees, maximizing lateral movement and providing comfort, flexibility for the patient, and treatment efficiency to the doctor.

The Liberty Bielle® consists of an assortment of precisely engineered and manufactured components of the highest quality. These unique components increase the durability of the appliance by minimizing destructive lateral forces and allowing maximum movement of the mandible in many directions.

The Liberty Bielle® is easy to adapt to any standard bracket and tube fixed appliance system. Combined with your edgewise therapy, multiple orthodontic and orthopedic objectives can be achieved simultaneously.

Initial 3 Months

Before and After: Liberty Bielle® Fixed

Features Benefits

Fixed Appliance Fixed version requires no patient complianceEasy assembly and adaptation minimizes chair time

Ball Joint Pivot Design

360 degree movement

Maximized lateral flexibilityEnhanced comfort in movementSuperior results due to higher treatment efficiency (fewer adjustments)

Low Profile DesignGreater patient comfort without bulky componentsReduced cheek irritation (no spring component)

Practical Construction

Increased durability by minimizing destructive lateral forces common in Class II correctionFewer debonding and breakage failures (light forces spread along wire instead of against bracket / tube)No unwanted rotations

rocky mountain orthodonticsTM

Synergistic Solutions for Progressive OrthodonticsTM

800.525.6375 | www.rmortho.com650 West Colfax Avenue, Denver, Colorado 80204P 303.592.8200 F 303.592.8209 E sales@rmortho.com

Part No. Description PkgJ01500 Liberty Bielle Upper Tube Rod 2 eaJ01501 Liberty Bielle Lower Rod 2 eaJ01502 Liberty Bielle Screw 10 eaJ01503 Liberty Bielle Screwdriver 1 eaJ01504 Liberty Bielle Activation Spacer 1.5 mm 10 eaJ01507 Liberty Bielle Fixed Pivot 10 ea

A00228 Arch Hex Screw 5 eaI00034 Hex Wrench 1 ea

K01514 Liberty Bielle Fixed Kit 1 KitLiberty Bielle Upper Tube Rod 2 eaLiberty Bielle Lower Rod 2 eaLiberty Bielle Fixed Pivot 4 eaLiberty Bielle Screw 4 eaArch Hex Screw 4 ea

Liberty Bielle® FixedFrequently Asked Questions

1. What wire sizes are recommended for use with the Liberty Bielle?Liberty Bielle is intended for wires up to .022x.028. Although the appliance is recommended for .018 x.025 and .022x.028, the minimum size is .016x.022.

2. What are the exact slot dimensions in the fixed pivot?Slot dimensions are 0.6 mm x 2.0 mm (0.024” x 0.087”).

3. Is the A00228 Hex Screw the same as RM Locks sold separately?Yes. RM Lock screws have a special tapered end design ideally suited for securing the archwire into the pivot.

4. Once the RM Lock is fully engaged should the wire be stationary or allowed to move?If the RM Lock is engaged and tightened to the wire, it should not move. The screw should be tightened for the tapered section to secure the wire against the back wall of the slot. Any slop in the wire is an indication that the taper of the screw was not tightened far enough or that the wire itself is too small.

5. What material are Liberty Bielle components made of?Standard AISI 316L Stainless Steel.

6. What force is provided to advance the mandible since there is no spring?If the appliance is measured and engaged correctly, the length of the upper rod according to each patient provides advancing force when biting down. The lower rod acts as a hard stop during normal bite position. Activation spacers can be added to further mandibular advancement (1.5 mm).

rocky mountain orthodonticsTM

Synergistic Solutions for Progressive OrthodonticsTM

800.525.6375 | www.rmortho.com650 West Colfax Avenue, Denver, Colorado 80204P 303.592.8200 F 303.592.8209 E sales@rmortho.com

7. How much advancement do you plan for in the initial setup (first month)? Per month?Individual cases should be measured to Ideal Class I position from the start. The disappearance of the posterior malocclusion indicates offset correction. At least 3 months is necessary to observe changes.

8. Can there be any distortion in the wire when engaged inside the pivot and RM Lock?If the pivots are mounted correctly – parallel to the occlusal edge (horizontal) – there should be no distortion in the wire.

9. What prevents the ball screw from becoming loose or coming out?The ball screw is specially designed to fit a rounded hole cavity on the upper and lower rods. The design is unique and allows the rods / posts to move in circular motion without loosening the screw (the ball assembly joint is what prevents the screw from coming out).

If the ball screw is tightened correctly, the rod should move with ease without loosening the screw (imagine ball bone joints in the body – works the same way!)

10. What is the intended range of lateral mobility allowed by Liberty Bielle?Liberty Bielle allows full lateral mobility due to the benefits of incorporating a ball joint design which minimizes destructive lateral forces found in other modern Herbst appliances. The appliance allows range far exceeding what the human bite construction will allow ~ 7-10 mm right and left (Fricton, 2004)

11. What prevents the upper and lower rods from coming apart on a large open jaw?Range of motion of the jaw is measured from occlusal edge to occlusal edge of the central incisors. Minimum normal jaw opening is considered to be about two finger widths at the knuckles of the patient’s dominant hand, or approximately 40 mm (1.57”) (Fricton, 2004).

Under recommended mounting procedures, upper and lower rod lengths are more than enough to accommodate the estimated 1.70” total extension from pivot-to-pivot on a typical open jaw, if measured and cut correctly.

12. Are the RM Lock screws tightened from the occlusal for both upper and lower? Yes. The hex screws should be tightened from the occlusal to allow access by the hex wrench.

References

Fricton J. (2004). Temporomandibular Muscle and Joint Disorders. International Association for the Study of Pain 7(2):1-6.