A study of the relative effectiveness of an introductory activity to teach intracoronal operative preparations to dental students (n=35) found that in comparison with traditional classroom methods used with 29 students, the leadup activity resulted in more efficient instruction and improved learning. Amount of teacher supervision was also a…

Like rain, an earthquake is a natural occurrence which may be mild or catastrophic. Although an earthquake may last only a few seconds, the processes that cause it have operated within the earth for millions of years. Until recently, the cause of earthquakes was a mystery and the subject of fanciful folklore to people all around the world. This…