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唇短缩者一般都不能习惯性闭唇,故常称唇功能不良。它不仅影响牙列,也影响容貌。为此,有人提出用积极的唇肌训练方法来改善唇的功能,该法不需要任何装置,效果也肯定,但需相当的毅力和艰苦的努力。前庭盾是一种早已用于唇肌训练的简便装置,既有扩张和增强唇肌的作用,也有内收上切牙的力量。本文目的是用唇面加有圈袢的口腔前庭盾进行唇肌训练,观察其对唇功能不良者的唇形态、唇功能和牙列的影响。材料和方法本研究包括32名儿童,都患有唇功能不良、上唇短缩以及上切牙前突和深覆盖。绝大多数患儿有上切牙间隙,多数患者为安氏Ⅱ类错(牙合)。每组16名,治疗组平均年龄9.6岁,对照组8.8岁。
Lip shortening people generally can not habitually closed lips, so often said lip dysfunction. It affects not only the dentition but also its appearance. For this reason, it has been proposed to improve the function of the lips with a positive lip muscle training method, which does not require any device, and the effect is affirmative, but requires considerable perseverance and hard work. Vestibular shield is a simple device that has long been used for lip muscle training, both to expand and enhance the role of lip muscles, but also the strength of the incisors. The aim of this paper is to train the labial muscles with the oral cavity vestibular shield with a circle of lip and observe the effects on the lip shape, lip function and dentition of the lip dysfunction. Materials and Methods The study included 32 children with lip dysfunction, shortening of the upper lip, and upper incisors and deep covers. The vast majority of children have upper incisors clearance, the majority of patients with Class II malocclusion (occlusion). Each group of 16, treatment group average age 9.6 years, control group 8.8 years old.