Agreed, having had a previous career to medical training/residency, many a time I long for the work life balance and enjoyment of life outside work that residency/medical training/medicine in general can snuff out, and this is coming from someone who constantly is trying to do things with my partner, friends, family, and personal time outside of studying, prepping for clinics, on-call, and just the general stress of the job. Try it out, see where this masters takes you, you will more than likely be pleasantly surprised with how life and your perspective may change. But if it never leaves your mind, the dentistry dream, then do what you must to get there.