Treasure P, O'Neill N M
University of Otago, Dunedin, New Zealand.
Dent Update. 1990 Dec;17(10):431-3.
The high prevalence of anomalies of number or form of teeth supports the principle that the developing dentition should be screened radiographically at least once. However, there is considerable controversy, as to when and how to screen, and increasing concern about risks from unnecessary radiation. This study presents a case of late discovery of supplemental premolars in a 14-year-old boy. Screening would have detected the supplementary teeth earlier; however, management of the patient would not have been significantly affected.
牙齿数量或形态异常的高发生率支持这样一个原则，即发育中的牙列至少应进行一次影像学筛查。然而，关于何时以及如何进行筛查存在相当大的争议，并且人们越来越担心不必要辐射带来的风险。本研究报告了一例14岁男孩补充前磨牙发现较晚的病例。筛查本可更早发现这些额外牙齿；然而，对该患者的治疗并不会受到显著影响。
