To the Editor The finding by Blackburn et al¹ that “children with early preventive care visits from dentists were more likely to have…greater expenditures than children without preventive dental care” is stunning. This finding calls into question more than 25 years’ efficacy studies. What isn’t immediately obvious is that the findings and interpretation are likely to be spurious.

中文翻译：

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儿童早期预防性牙科保健的好处

致编者Blackburn等人^1的发现“与没有预防性牙科护理的儿童相比，有早期牙科护理就诊的儿童更有可能……支出更大”。这一发现对超过25年的功效研究提出了质疑。立刻发现的结果和解释可能是虚假的，这并不是立即显而易见的。