Dentists spend a good deal of their day hunched over their patients. Neck and back issues can easily develop due to how they need to sit in their chairs, arch their necks or twist into awkward positions. Dentists depend on their assistants to help reduce the amount of turning and bending they do so they can remain in a comfortable position while working on their patients. They also need to spend time every day stretching and doing gentle strengthening exercises for their necks and backs to prevent injury.