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Annual Session 2021

AS21B61 - Invisible TransForce Orthodontics

Jun 27, 2021 10:20am ‐ Jun 27, 2021 10:40am


Preformed occlusal blocks and lingual wires are designed to simplify construction of Invisible Twin Blocks. Clinical trials confirm consistent correction of Class II malocclusion. Removable or Fixed Twin Blocks may be combined with anterior brackets if required.

Learning Objectives:

  • Construct Invisible Twin Blocks using preformed components.
  • Use aesthetic appliances to correct Class II malocclusion.
  • Combine Twin Blocks with sectional fixed appliances on anterior teeth.



  • William Clark, BDS, DDO, DDSc, FDSRCS (Eng) : Royalties: Henry Schein Orthodontics

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