At the same time, Wangerin in Germany designed a similar appliance the Intraoral Titanium Mandibular Distraction Device. The device consists of two mini plates for bone fixation connected by a square-shaped distraction cylinder (Wangerin & Gropp, 1994, 1995).
FIG. 3.3.3. Wangerin's intraoral distraction device (Medicon eG, Tuttlingen, Germany).