The effect of treatment of skeletal open bite with two types of bite-blocks.
The effect of treatment of skeletal open bite with two types of bite-blocks.
复制标题
使用两种类型的咬合块治疗骨骼性开牙合的效果。
DOI：
10.1093/ejo/14.6.489
复制
发表时间：
1992
影响因子：
2.6
通讯作者：
Bengt Ingervall
中科院分区：
文献类型：
--
作者：
Robert Kuster;Bengt Ingervall
对两组儿童前牙骨性开的治疗进行了研究。其中一组的孩子在下颌戴上一个可移动的弹簧咬合块一年。咬合块对上下后牙施加侵入力。另一组的儿童用带有排斥磁铁的咬合块治疗3个月。这些咬合块被粘在两个颌骨的后牙上。通过测量咬合力（仅使用弹簧咬合块的组）、颞肌和咬肌活动的肌电图记录以及X射线头影测量来监测治疗效果。在治疗前、治疗期间、治疗结束时以及随访观察时进行记录。在治疗的前几个月，咬合力增加，但随后保持不变。在最大咬合期间咬肌的活动也在用弹簧咬合块治疗的第一部分中增加。在用磁性咬合块治疗的组中，咬肌的静息活动和前颞肌的咀嚼活动增加。治疗对咬合和面部形态的影响在弹簧咬合块组中不如磁性咬合块组显著，弹簧咬合块治疗的覆牙合平均改善1.3 mm。在使用磁性咬合块的组中，覆牙合平均改善3 mm。这被认为是由于下颌骨的前旋和门牙的萌出增加。下颌骨旋转是由于上、下后牙的侵入，也可能增加下颌骨的生长。对用磁性咬合块治疗的病例进行的随访显示，治疗的有益效果有复发的趋势，这可能会被长时间的主动保留所抵消。
The treatment of anterior skeletal open bite was studied in two groups of children. The children of one group wore a removable spring-loaded bite-block in the lower jaw for one year. The bite-block exerted an intrusive force on the upper and lower posterior teeth. The children of the other group were treated for 3 months with bite-blocks with repelling magnets. These bite-blocks were cemented on the posterior teeth of both jaws. The effects of treatment were monitored by measurement of the bite-force (group with spring bite-blocks only), by electromyographic recording of the activity of the temporal and masseter muscles, and by X-ray cephalometry. Recordings were made before, during, and at the end of the treatment, and at a follow-up observation. The bite-force increased during the first months of treatment, but was then unchanged. The activity of the masseter muscle during maximal bite also increased in the first part of the period of treatment with a spring bite-block. In the group treated with magnetic bite-blocks, there was an increase in the resting activity of the masseter muscle and in the chewing activity of the anterior temporal muscle. The effects of the treatment on bite and facial morphology were less marked in the group with spring bite-blocks than in the group with magnetic bite-blocks, with an average improvement of the overbite of 1.3 mm with the spring bite-block therapy. In the group with magnetic bite-blocks, the average improvement in overbite was 3 mm. This was thought to be due to anterior rotation of the mandible and increased eruption of the incisors. The mandibular rotation was a result of intrusion of the upper and lower posterior teeth and possibly also increased mandibular growth. A follow-up of the cases treated with magnetic bite-blocks revealed a tendency for the beneficial effects of the treatment to relapse which possibly could be counteracted by a long phase of active retention.
成年恒河猴咬肌延长后适应性的头影测量分析。
影响因子：
3
作者：
Carlson,DS;Schneiderman,ED
通讯作者：
Schneiderman,ED
DOI：
10.1016/0889-5406(89)90410-1
发表时间：
1989-06-01
影响因子：
3
作者：
KALRA, V;BURSTONE, CJ;NANDA, R
通讯作者：
NANDA, R