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LM-Activator™ 2 HIGH is thicker in the region of second premolars and molars. It is suitable for skeletal and dentoalveolar Open Bite cases.

A model with incisal reinforcement for increased durability, REINFORCED, is available. Reinforced model is recommended for patients over 8 years of age only.

Available in two lengths

  • The SHORT model with a shorter molar section when the second molars have not yet erupted.
  • The LONG model with a longer molar section when the second molars have erupted or are about to erupt.


LM-OrthoSizer™ is a tool for aiding the selection of the appropriate LM-Activator™ size. The size is indicative and LM-Activator™ should always be fitted to ensure the correct size.