The second edition of this classic textbook should be required reading for undergraduate and graduate students alike. It prepares readers for the daunting task of identifying and accessing the information they need in the dental literature, reading it from a critical vantage point, and applying formal rules and measurements to assess the soundness of the author’s conclusions. The author introduces issues of logic, statistics, measurement, research design, and argument and explores their specific application in dental research reports. Featuring new chapters on scientific rhetoric and a guide to the dental literature, as well as significantly expanded chapters on statistics, this completely revised edition is ideal for anyone who wishes to become a more discerning reader of dental literature.