Specialty M4® Herbst

The Specialty M4(R) Miniscope Herbst is the most popular Herbst mechanism in the market. The M4 allows up to 40 degrees of lateral movement and a maximal incisal opening of up to 64mm.

The M4 Miniscope can be activated without removing from the mouth, and the telescope will not come apart. This low-profile Herbst mechanism offered increased appliance strength and patient comfort. We recommend using the Specialty M4 with Applecore screws and pivots.


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Available in 3D Printing?

  • Yes

Anchorage Types

  • Bands
  • ROCS
  • Crowns

Expansion Options

  • 12mm RPE Screw
  • Mini-Expander
  • Click Screw



  • Lower Lingual Arch (no loops)

Optional Add Ons:

  • Lower Lingual Arch with Loops
  • Transpalatal Arch
  • Quad Helix
  • Occlusal Rests
  • Archwire Tubes
  • Lingual Seating Lugs
  • Vertical Slits (ROCs or Crowns)
  • Vent Holes (Crowns)
  • Debonding Holes (Crowns)

Quick Reference Guide

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Brackets & Arch Wire Tubes

The Herbst can be fabricated with brackets and/or added archwire tubes.

This allows fixed appliances (partial or full) to be used simultaneously with the Herbst.

Specialty Miniscope Herbst Specialty Appliances

Expansion With Class II Appliances

The Herbst is oftentimes fabricated with an upper expansion screw.

The traditional 12mm RPE screw typically provides enough expansion to balance out the lateral dimensions while the Herbst is worn.

Specialty Miniscope Herbst Specialty Appliances

FAQs About Herbst & MARA Appliances