answers at last!

This clinic session has been very informative. I have been working at a office with on-the-job-training and wondered about light positioning, what angle is best? What is the best way for angulation with instruments in the mouth for cleanings as well as chair positioning and why I have developed neck muscle pain ever since starting work in the dental profession. I hope that the muscle pain will in time relieve itself. It would make range of motion and sleeping much more comfortable. I wish I had more instruction in helpful hints of posture and patient positioning when I started work so I could have enjoyed assisting more.