Steven D. Marshall

The effect of resting tongue pressure, lip-cheek pressure, and interdental force on mandibular arch collapse and mesial molar drift: A preliminary 3D finite element study

Relapse of aligned mandibular anterior teeth and the progressive collapse of the mandibular anterior arch are historically significant problems for orthodontists. The etiology of this collapse, and the cause of mesial molar drift, are unknown. However, light continuous (quasi-con...