Alhilou Ahmed, Beddis Hannah P, Mighell Alan J, Durey Kathryn
Restorative Dentistry, Leeds Dental Institute, Leeds, West Yorkshire, UK.
Oral Medicine, Leeds Dental Institute, Leeds, Leeds, UK.
BMJ Case Rep. 2018 Jun 11;2018:bcr-2017-223942. doi: 10.1136/bcr-2017-223942.
Dentin dysplasia(DD) is a rare autosomal dominant disorder associated with disturbance of the dentin. While the crowns appear clinically normal, on radiography, the pulp spaces appear partially or completely obliterated, with short blunted roots, and multiple periapical radiolucencies affecting the apparently sound teeth. Clinical signs include spontaneous abscess formation or increased tooth mobility which can lead to exfoliation. DD can therefore have a significant impact on the patient's dentition, and treatment is often challenging. Shields' classification of dentin disorders has been recently criticised for failing to consider differential variations and expressions of these disorders. This paper describes a case of a 23-year-old woman with previously undiagnosed DD, who presented with clinical and histological features belonging to several of these diseases, thus highlighting the potential diagnostic challenges faced with Shields' classification.
牙本质发育异常（DD）是一种罕见的常染色体显性疾病，与牙本质紊乱有关。虽然临床上牙冠看起来正常，但在X线片上，牙髓腔部分或完全闭塞，牙根短而钝，多个根尖周透射区影响看似健康的牙齿。临床症状包括自发脓肿形成或牙齿松动增加，这可能导致牙齿脱落。因此，DD会对患者的牙列产生重大影响，治疗往往具有挑战性。希尔兹对牙本质疾病的分类最近受到批评，因为它没有考虑到这些疾病的差异变化和表现。本文描述了一例23岁此前未被诊断出患有DD的女性病例，该患者表现出属于其中几种疾病的临床和组织学特征，从而突出了希尔兹分类法面临的潜在诊断挑战。
