Yes we do have a powerpoint presentation and a worksheet for training our technical support personnel.
The same can be used for training dental students.
Here are some scholarly articles on the theory and the why behind the use of loupes:
Dr Gordon J. Christensen
Magnification in dentistry: useful tool or another gimmick?
The Journal of the American Dental Association vol. 134, Dec 2003
Prof.Laurence J. Walsh
Magnification and its increasing role in clinical practice
Australasian Dental Practice March/April 2007
Sulekha S Gosavi, Siddharth Y Gosavi, Rashmi S Jawade
Posturedontics Reducing the Stress in Dentistry
World Journal of Dentistry;Oct-Dec2012, Vol. 3 Issue 4, p335
Neck health: the three ergonomic criteria for loupes selection
Dr. B. J. Chang
Declination Angle: The Key Factor for Custom Loupes
Oral Health, July 1, 2014