【名词&注释】
大气压力(atmospheric pressure)、全口义齿(complete denture)、急性牙髓炎(acute pulpitis)、医源性损伤(iatrogenic injury)、退行性变(degeneration)、牙髓坏死(pulp necrosis)、牙髓钙化(dental pulp calcification)、牙髓坏疽(pulp gangrene)、牙髓变性(pulp degeneration)、牙髓充血(hyperemic pulpitis)
[单选题]牙齿变色见于
A. 牙髓纤维变性
B. 牙髓网状萎缩
C. 牙髓钙化(dental pulp calcification)
D. 牙髓充血(hyperemic pulpitis)
E. 牙髓坏死与坏疽