Brenneise C V, Dwornik R M, Brenneise E E
Department of Oral Diagnosis and Radiology, School of Dentistry, Creighton University, California.
J Am Dent Assoc. 1989 Dec;119(6):721-3. doi: 10.14219/jada.archive.1989.0257.
Dentin dysplasia, type I, is a rare dental anomaly characterized by abnormal dentin formation affecting the roots of both primary and permanent teeth. Short, conical roots with occlusion of the pulp chamber and canal are produced. Periapical radiolucent areas are common, although no evidence of caries or trauma to the tooth may be seen. Coronal mantle dentin is unaffected, resulting in an apparently normal clinical crown. An abnormality may not be suspected until radiographs reveal pulp and root changes. Orthodontic treatment can be a successful variation of the usual treatment offered to patients, and is discussed in this case report.
I型牙本质发育异常是一种罕见的牙齿异常，其特征是牙本质形成异常，影响乳牙和恒牙的牙根。会产生短而锥形的牙根，伴有牙髓腔和根管闭锁。尽管可能看不到龋齿或牙齿外伤的迹象，但根尖透射区很常见。冠部罩牙本质未受影响，导致临床牙冠外观正常。在X线片显示牙髓和牙根变化之前，可能不会怀疑有异常情况。正畸治疗对于这类患者而言可能是常规治疗的一种成功变通方法，本病例报告对此进行了讨论。
