Majourau A, Nanda R
Division of Orthodontics, School of Dental Medicine, University of Connecticut, Farmington.
Am J Orthod Dentofacial Orthop. 1994 Sep;106(3):322-8. doi: 10.1016/S0889-5406(94)70053-2.
Rapid palatal expansion (RPE) is recognized as a very successful orthopedic therapy to correct maxillary transverse deficiencies in growing patients. However, the transverse forces delivered during RPE have been 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 height and increased facial convexity. The application of extraoral forces during RPE therapy by the concomitant use of a high-pull chincap is described and clinically illustrated as a method to control the vertical dimension.
快速腭扩展（RPE）被认为是一种非常成功的矫形治疗方法，用于纠正生长发育期患者的上颌横向发育不足。然而，研究表明，在RPE治疗过程中施加的横向力会在表现出骨骼开颌倾向、较大唇间隙或严重II类骨骼型、面下1/3高度较长且面部凸度增加的患者中产生不良的正畸和矫形副作用。本文描述并通过临床实例展示了在RPE治疗期间通过同时使用高位牵引颏兜施加口外力作为控制垂直维度的一种方法。
