Plenty of men book this and you will not be the only one on the schedule, any decent practice will not blink at the request. Fair warning on expectations though, I would treat it as muscle work and relaxation rather than a fix for the grinding itself, and if the grinding is the root of it your dentist is the right first stop. On the massage side, buccal massage at SENSO Skin Experts was recommended to me by a colleague and the intake conversation was straightforward, no upselling, hygiene handled properly. It is not the most comfortable forty minutes of your life, which is worth knowing in advance. Book the end of your day rather than lunch, you come out loose and slightly sleepy.