ODL Lab Converting a Fixed TPA/FBP to Removable – Lingual Sheaths and Distal Lock Bands (Goshgarian)

I. Introduction
Dr. Amanda from StraightSmile Solutions highlights a favorite hybrid appliance: the TPA (transpalatal arch) with a fixed bite plate (FBP).
It’s ideal for mixed-dentition Class II cases with deep bites where teeth are erupting unpredictably.
A lab modification makes the entire unit removable; a game changer for bite checks.

II. What the Appliance Does
Helps level the curve of Spee on the lower arch.
Holds the upper first molars back, preserving “E-space” (about 1-1.5mm of Class II correction).
You can leave it in for 5-7 months, then easily remove it to check progress.

III. The Removable Modification; Lingual Sheaths + Distal Lock Bands
The appliance uses Goshgarian lingual sheaths with distal lock bands.
The whole anterior bite plate and TPA section can be pulled out as a unit while the bands stay cemented on the molars.
After checking the bite (tap, tap, grind), you can reinsert the unit; no need to debond bands.

IV. Additional Benefits and Customization
You can cut off the anterior bite plate if the deep bite is resolved, but you still need to hold E-space.
The design is thick and locks teeth in place; you could even add a groove to make it a “Rickinator” for other mechanics.
Bands can also have soldered brackets for future braces.

V. Important Clinical Note
Cementation technique is critical. If you cement it without proper draw, the removable unit won’t come out.
Don’t bend the appliance when pulling it out.

VI. The Bottom Line
This hybrid TPA/FBP with lingual sheaths and distal lock bands gives you the best of both worlds: fixed bite control with removable convenience.
Ask your lab for “Goshgarian lingual sheaths with distal lock bands.”
Great for early Class II deep bite correction without committing to full braces or Invisalign MA.