Yang K H
Department of Pedodontics, School of Dentistry, Chonnam National University, Kwangju, Korea.
J Clin Pediatr Dent. 1996 Spring;20(3):189-95.
The twin blocks technique was developed by Dr. William Clark of Scotland during the early 1980s. Twin Blocks are an uncomplicated system that incorporates the use of upper and lower bite blocks. These bite blocks reposition the mandible and redirect occlusal forces to achieve rapid correction of malocclusions. They are also comfortable and the patients wear them full-time--including eating time. Occlusal forces transmitted through the dentition provide a constant proprioceptive stimulus to influence the rate of growth and the trabecular structure of the supporting bone. This feature of Twin Blocks means easier and quicker treatment. The occlusal inclined plane is the fundamental functional mechanism of the natural dentition. Twin Blocks are bite blocks that effectively modify the occlusal inclined plane to induce favorably directed occlusal forces by causing a functional mandibular displacement. Upper and lower bite blocks interlock at a 45 degree angle and are designed for full-time wear to take advantage of all functional forces applied to the dentition including the forces of mastication. The patients who were treated with Modified Twin Blocks received the following benefits: 1) large overjets and deep overbites were corrected. 2) Class II molar relationships were changed into Class I, and 3) the profiles of the patients were improved by anterior displacement of mandible.
双阻板矫治器技术是由苏格兰的威廉·克拉克博士在20世纪80年代初研发的。双阻板矫治器是一种简单的系统，它使用上下咬合板。这些咬合板可重新定位下颌骨并重新引导咬合力量，以快速矫正错牙合畸形。它们佩戴起来也很舒适，患者需全天佩戴——包括进食时。通过牙列传递的咬合力量会提供持续的本体感觉刺激，以影响生长速度和支持骨的小梁结构。双阻板矫治器的这一特点意味着治疗更轻松、更快速。咬合斜面是天然牙列的基本功能机制。双阻板矫治器是通过引起功能性下颌移位来有效改变咬合斜面，从而诱导出方向有利的咬合力量的咬合板。上下咬合板以45度角相互锁扣，设计为全天佩戴，以利用施加于牙列的所有功能力量，包括咀嚼力。接受改良双阻板矫治器治疗的患者获得了以下益处：1）矫正了大覆盖和深覆牙合；2）二类磨牙关系转变为一类；3）通过下颌骨前移改善了患者的面部轮廓。
