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本研究旨在了解青春前期骨骼型下颌前突怎样影响面形和真性(过大的)下颌前突是否在生长方向和生长量上与正常的面形不同。村料和方法本研究由两组日本女孩的连续头颅侧位测量片组成。第一组(正常组)包含22个女孩7—10岁,每年均摄取头颅侧位片连续至10岁。该组全部儿童咬正常或为轻度Ⅰ类错。未接受过正畸或矫形治疗。第二组26个女孩7—10岁,每年均摄取头颅侧位片。全部儿童表现前牙反。在研究之前或研究期间未接受过矫正治疗。有一些患者接受过轻微的矫正治疗,以矫正前牙反。但这种治疗引起的改变对于下颌位
The purpose of this study was to understand how pre-skeletal mandibular prognathism affects both faceted and true (oversized) mandibular processes that differ from normal face shapes in both growth and growth. Materials and methods of the village The study consisted of a series of consecutive cephalometric slices from two Japanese girls. The first group (normal group) consisted of 22 girls aged 7-10 years old, taking the cephalometric slices consecutively to the age of 10 each year. All children in this group bite normal or mild class I malocclusion. Did not receive orthodontic or orthopedic treatment. The second group of 26 girls 7-10 years old, annual intake of cephalometric films. All children showed anterior crossbite. Orthodontic treatment was not performed prior to or during the study. Some patients have undergone minor corrective treatments to correct the anterior crossbite. However, this treatment caused by change for the mandibular position