Extend™ LTR

Current Issue , Product Profile

Reliance introduces a new addition to its lingual retention line

Extend™ LTR

One of the many difficult decisions you will face on a daily basis is how to achieve long-term retention when the patient is out of your control. Reliance has two excellent options (Retainium and Ortho FlexTech) when a case calls for a lingual retainer that is bonded on every tooth. These wires provide a proven retention method that is far better than relying on patient compliance with a removable retainer. However, they have one drawback — hygiene.

Dentists’ and dental hygienists’ biggest complaint about fixed retainers is neither they — nor the patient — can adequately cleanse around wires bonded to every tooth. They maintain, rightly so, that the wires bonded to every tooth are a catch-point for calculus and debris. The good news is not every case necessitates a retainer to be bonded on every tooth. In fact, a six bonding pad retainer would be overkill in many Class I “minor movement” cases.

Reliance is proud to introduce our newest addition to our lingual retention line — Extend™ LTR. We have improved a popular lab-generated retainer wire to allow for chairside wire selection and placement — no lab lead time and no lab costs. The ideal case where Extend will be utilized is a patient that had little anterior crowding and NO facial torquing. Neither of these issues can be stabilized with a cuspid-bonded lingual retention device.

Extend is fabricated from a nickel-free (.027) TMA wire. A bendable or shapable super-elastic wire, TMA has some give or flexibility without changing the formed/shaped characteristics. This feature allows Extend a slight amount of flexion without deforming under mastication forces. Ideal for holding cuspid width, Extend is not only flattened at the cuspid segment of the wire, but also incorporates 20° angulated bonding pads to allow the proper wire-lingual surface adaptation.

For the remaining anteriors, Extend must be adapted to the lingual sides of each tooth. A bird-beak plier should be used for slight adaptation bends; while more extensive bends can be achieved with a three-prong plier without work hardening the wire. Available in five sizes: 18 mm, 20 mm, 22 mm, 24 mm, 26 mm.

The Extend arch measuring device makes chairside size selection accurate and simple. With the numbered side facing up, seat the contact point of the measuring device at the midline. The first number to fully clear the distal edge of the cuspid will be the number to correspond with the designated wire size.

Extend arch measuring device

Chairside steps are as follows:

  1. Adapt Extend on a study model.
  2. Prophy the cuspids.
  3. Sandblast the cuspids.
  4. Etch the cuspids.
  5. Apply one coat of Assure Plus, and air-dry.
  6. Place a small amount of LCR paste in the middle of the cuspids; place wire plus light cure.
  7. Apply the final coat of LCR to fabricate a custom pad of composite; smooth with a resin-saturated sponge pellet as needed plus light cure.

This information was provided by Reliance Orthodontic Products, Inc.