A. Majourau et R. Nanda, BIOMECHANICAL BASIS OF VERTICAL DIMENSION CONTROL DURING RAPID PALATAL EXPANSION THERAPY, American journal of orthodontics and dentofacial orthopedics, 106(3), 1994, pp. 322-328
Rapid palatal expansion (RPE) is recognized as a very successful ortho
pedic therapy to correct maxillary transverse deficiencies in growing
patients. However, the transverse forces delivered during RPE have bee
n shown to create undesirable orthodontic and orthopedic side effects
in patients exhibiting skeletal open bite tendency, large interlabial
gap, or severe Class II skeletal patterns, with long lower facial heig
ht and increased facial convexity. The application of extraoral forces
during RPE therapy by the concomitant use of a high-pull chincap is d
escribed and clinically illustrated as a method to control the vertica
l dimension.