问题
单项选择题
Periodontal ligament space appears as a radiolucent space between the tooth root and the _________.
A.alveolar crest
B.lamina dura
C.cancellous bone
D. trabecular bone
答案
参考答案:B
Periodontal ligament space appears as a radiolucent space between the tooth root and the _________.
A.alveolar crest
B.lamina dura
C.cancellous bone
D. trabecular bone
参考答案:B