Based on a 2015 National Labor Relations Board (NLRB) ruling, office manuals or handbooks can't have overly broad prohibitions on employee use of cell phones. Besides which, if you feel you can't treat your staff like adults, that's a bigger problem.
While it is important to understand what is unacceptable conduct for your dental staff, it is equally important to understand what is “acceptable conduct” in a dental practice so you can concentrate on the positive not the negative.
AVOIDING INEFFECTIVE MEETINGS
A very poor way to run an office is for you and your staff to have meetings infrequently and only when there has been a problem. Staff meetings should be something that are useful and routine, not something that are called as emergencies because you’re upset or there have been problems or somebody has made a mistake.