STRAIN IN MANDIBULAR ALVEOLAR BONE DURING MASTICATION IN RABBIT
STRAIN IN MANDIBULAR ALVEOLAR BONE DURING MASTICATION IN RABBIT
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DOI：
10.1016/0003-9969(77)90096-6
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发表时间：
1977-01-01
影响因子：
3
通讯作者：
JONGH, HJD
中科院分区：
文献类型：
--
作者：
WEIJS, WA;JONGH, HJD
三元件玫瑰花应变计被粘合到活体兔子的下颌牙槽骨的侧面。在咀嚼的舌侧动力冲程期间，下颌的该区域两侧同时受到压力。提上睑肌 EMG（肌电图）的静默期有时会产生应变强度的短暂降低。通过摩尔负载，咀嚼干草和颗粒在主动侧分别产生320μ应变和280μ应变的峰值压缩应变和拉伸应变。在平衡方面，对应的值为75和100μ应变。在咀嚼胡萝卜的过程中，菌株的大小减少了一半。咬合在颌骨两侧分别产生60μ应变和100μ应变的压缩应变和拉伸应变。咀嚼时平衡的下颌一半和咬合时的两半下颌可能会受到矢状面中的弯曲剪切力，从而产生观察到的应变。
Three-element rosette strain-gauges were cemented to the lateral aspect of the mandibular alveolar bone in living rabbits. During the lingually directed power stroke of mastication, this area of the jaw was stressed on both sides simultaneously. Silent periods in the EMG [electromyographs] of levator muscles sometimes produced a transient decrease of strain magnitude. Chewing of hay and pellets produced peak compressive and tensile strains of 320 and 280 .mu.strain, respectively, at the active side, by molar loading. On the balancing side, corresponding values were 75 and 100 .mu.strain. During carrot chewing, strains were half as large. Biting produced compressive and tensile strains of 60 and 100 .mu.strain, respectively, on both sides of the jaw. The balancing half of the mandible in chewing and both halves in biting may be subjected to bending-shearing forces in the sagittal plane, which produce the strains observed.