My state senate (republican majority) just introduced a bill to create dental therapists profession couple of weeks ago. With 80+ shortage areas within the state, I think this bill will pass without any serious oppositions. I doubt most practicing dentists in the state are aware of this bill either.
Most of the dentists in MA likely aren't aware of it. A bunch of us dentists just South of you in CT are, as we've been able to successfully prevent Mid Level legislation, through an intensive lobbying effort on the part of multiple members of our State Dental Society to educate and inform our elected reps, especially those on the State Public Health Committee, on the reality of what a Mid Level can do verses what the folks at Pew and Kellogg who have been lobbying for a mid level say that they can do. MA, even though they are in the same ADA District as us in CT, and we have a very amicable working relationship with the leaders in MA, just basically stuck their head in the sand and put very little effort into educating their legislators, and then on top of it, likely for financial gains, the Dean of Harvard Dental School, really went against the what the data shows (kind of a strange thing for one who is trained as an oral surgeon) and put out an opinion piece in favor of mid levels.
Speaking now as someone who's business partner is on the ADA's national Access to Care Task force (so yes I hear PLENTY about this subject while I'm at work), the reality is that the actual "access" issue isn't nearly as bleak as the various folks lobbying for a Mid Level provider make it out to be. What it very often gets down to is its not about the people who claim that they can't find a dentist to see them, it's more often about those people not being able to find a dentist who will treat them for free.
Yes, there are some scenarios where a Mid Level WILL help with access, such as in states with very rural areas like Alaska, parts of the West, and even Northern Maine, but those are the exceptions, not the norm as the lobbying groups want folks to believe.
Again, as I have said before about this, when it boils down to it, if on a procedure basis, a Mid-Level CAN'T do the work any more cost effective than a dentist can, and the midlevel will be getting reimbursed the same rates as a dentist, and the majority of the "access issue" isn't about getting into a dentist but about finding free care, there is no way that widespread implementation of a Mid level provider will help "solve" this perceived problem