关于异常的咀嚼周期,下列哪一点是错误的?( )没学
A. 牙咬合接触时,下颌运动无明显的瞬息停止
B. 咀嚼肌所能发挥的最大力
C. 咀嚼周期的形态不稳定
D. 咀嚼运动时,牙所承受的实际压力
E. 咀嚼周期的速度变化甚大
F. 咀嚼运动时,咀嚼肌实际发生之力
G. 咀嚼肌肌电图的放电期与静止期分期明显 更改: 14:力是指:B
H. 牙周膜的最大耐受力
I. 粉碎食物所需要的最小力
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Where does attrition frequently take place in a tooth? ()
A. labial surface, occlusal surface
B. incisal margin, occlusal surface
C. incisal margin, tooth cervix
D. incisal ridge, occlusal surface, proximal surface
E. None of the above.
The function of masticatory movement can be summarized into three stages: ()
A. protruding, retruding, and lateral movements
B. cutting, crushing and grinding movements
C. forward and backward, opening and closing, lateral movements
D. opening, food positioning, chewing movements
E. centric occlusion, small open occlusion, back to centric occlusion
The characteristic() of the chewing cycle is (): ()
A. both procedural and repetitive
B. only repetitive
C. only procedural
D. sometimes procedural, sometimes repetitive
E. neither of them
Which of the following statements is a characteristic of the normal chewing cycle: ()
A. There is no obvious momentary stop of mandibular movements during occlusal contacts.
B. The shape of the chewing cycle is unstable.
C. The speed of the chewing cycle varies a lot.
D. There is no rhythm in the movement.
E. The path is tear-shaped.
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