Cohen Howard B
University of Toronto, Faculty of Dentistry.
J Hist Dent. 2002 Mar;50(1):8-10.
This study is an attempt to intervene in the contemporary debate on the interpretation of Greene V. Black's well known principle of "extension for prevention." It is possible to discern two, divergent strains within Black's thought: he contends that his principle should have universal application, at the same time as he seeks to limit its application. The conflict between these two positions may be resolved by arguing that Black's comments are directed at different audiences: Black does not actually believe that extension for prevention should be universally applied, but reserves the judgment not to extend to only the most experienced operators. The remainder, the majority of operators, should behave as if it were a universal principle.
本研究试图介入当代关于格林诉布莱克著名的“预防延伸”原则解释的辩论。在布莱克的思想中可以辨别出两种不同的倾向：他主张其原则应具有普遍适用性，同时又试图限制其应用。这两种立场之间的冲突可以通过论证布莱克的评论针对不同受众来解决：布莱克实际上并不认为预防延伸应普遍适用，而是保留仅不对最有经验的操作者进行延伸的判断。其余的，即大多数操作者，应表现得仿佛这是一个普遍原则。
