Ott R W, Lechner K H
Dtsch Zahnarztl Z. 1989 Jan;44(1):30-3.
In an epidemiological study we found bilateral cuspid guidance in only 4, and unilateral cuspid guidance in 3 patients out of 247 patients examined. This suggest that cuspid guidance is a rare form of articulation. In the experimental part of this study the electric activity of the masseter and anterior temporal muscles was measured during empty mastication before and after the canines were treated with build-ups in a patient group with muscular and TMJ problems and matched against the results obtained in a control group of 10 healthy probands. Apart from the mean muscle activity also the path of excursion was recorded. Both values were combined in activity/path diagrams providing information on the muscular response to different forms of occlusion. Existing balancing contacts in mediotrusion, for instance, may produce high activities. With cuspid build-ups allowing correct cuspid guidance the patients with muscular and TMJ problems were symptom-free after just three days. After approx. one year the patients and the probands were recalled for a follow-up check. These and other results are discussed.
在一项流行病学研究中，我们在247名接受检查的患者中仅发现4例双侧尖牙引导，3例单侧尖牙引导。这表明尖牙引导是一种罕见的咬合形式。在本研究的实验部分，对一组存在肌肉和颞下颌关节问题的患者，在犬齿进行垫高治疗前后的空咀嚼过程中，测量了咬肌和颞前肌的电活动，并与10名健康对照者的结果进行了对比。除了平均肌肉活动外，还记录了运动轨迹。这两个值被整合到活动/轨迹图中，以提供有关肌肉对不同咬合形式反应的信息。例如，在正中颌位时现有的平衡接触可能会产生较高的活动。通过垫高尖牙以实现正确的尖牙引导，患有肌肉和颞下颌关节问题的患者仅在三天后就无症状了。大约一年后，召回患者和对照者进行随访检查。对这些及其他结果进行了讨论。
