题目内容
尖牙保护胎的拾型特点是
2022-02-22
A.侧方拾运动时,工作侧只有尖牙形成接触
B.侧方始运动时,工作侧只有尖牙脱离接触
C.侧方恰运动时,非工作侧只有尖牙脱离接触
D.侧方恰运动时,非工作侧只有尖牙形成接触
E.非正中雅时,双侧尖牙形成均匀接触
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