71.下列何種疾病患者牙齒之放射線影像，呈現比正常牙齒較大的牙髓腔（large pulp chamber )?
(A)副甲狀腺功能過旺（hyperparathyroidism )
(B)副甲狀腺功能不足（hypoparathyroidism )
(C)甲狀腺功能過旺（hyperthyroidism )
(D)低隣酸鹽酶症（hypophosphatasia )

疾病 Dental X-ray ...