Open Daily: 10am - 10pm | Alley door pickup 10am - 7pm 3038 Hennepin Ave Minneapolis, MN
612-822-4611

  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Twin Block Functional Therapy

Twin Block Functional Therapy

Siddiqui, Zahida Fatima

Paperback

Medical Reference

ISBN10: 6208118751
ISBN13: 9786208118754
Publisher: LAP Lambert Academic Publishing
Published: Jul 26 2025
Pages: 112
Weight: 0.35
Height: 0.27 Width: 6.00 Depth: 9.00
Language: English
The Twin Block is a removable, two-piece orthodontic appliance designed to correct Class II Division 1 malocclusion by posturing the lower jaw forward, typically worn full-time to leverage growth during the pubertal spurt. Through its interlocking inclined bite blocks, it encourages approximately 6 mm of mandibular growth while modestly restraining maxillary development-known as the headgear effect-and achieving significant overjet reduction ( 5-6 mm) alongside improved molar relationships. Skeletal changes include enhanced SNB and reduced ANB, while dental effects involve upper molar distalization ( 1 mm), lower molar advancement ( 4-5 mm), and modest lower incisor proclination ( 2-3 ). Patients also typically experience improved facial convexity, chin projection, and airway dimensions, contributing to functional and aesthetic benefits. Treatment is most effective when started around the peak adolescent growth phase and averages 10-14 months of active correction followed by several months of retention and possible transition to fixed braces-a protocol with compliance rates hindered by 25-35% dropout or appliance breakage.The Twin Block is an evidence-based, patient-friendly alt.

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