The opioid epidemic has been fueled by soaring numbers of prescriptions written for pain medication. And often, those prescriptions are written by dentists.

"We're in the pain business," says Paul Moore, a dentist and pharmacologist at University of Pittsburgh School of Dental Medicine. "People come to see us when they're in pain. Or after we've treated them, they leave in pain."

Indeed, 12 percent of prescriptions for immediate-release opioids are written by dentists. In 2012, dentists ranked fourth among medical specialties for their opioid prescribing rates, according to data from QuintilesIMS. It has made dentists targets for people "doctor shopping" in order to get opioids.

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"I have dentures," said Shawn Bishop, who is recovering from an opioid addiction at Hope House, a treatment center in Boston. "I had went to get some legitimate work done. And I got some Percocet. I realized that by going to another dentist, I could get some more Percocets."

Bishop, now 59, recounts the times he teamed up with others to play dentists for their opioid pills.

"He would look at our teeth or Mark's teeth in particular," Bishop said. "He would look at his teeth and say, 'Yeah, we need to take this one, this one, and this one.' And Mark will always say, 'Well, I can't do it today. Can we make an appointment for next week?' And then the doctor will say, 'Yeah, I need to write a prescription of Percocets.' He kept bad teeth and toothaches just so he can do that, you know?"

For Bishop and his friends, the enterprise of getting opioid pain pills from dentists grew so routine that, he says, he became a professional at it.

"It was almost like they knew their part to play and we knew ours," he said. "It was like actors in a little sketch there."

Massachusetts has taken the lead in trying to reduce opioid prescription abuse. Last year, Gov. Charlie Baker's office passed a law to prevent drug misuse. Dental schools in the state are also required to teach a set of core competencies that their students are required to meet before graduating. Students will have to demonstrate that they know how to consider nonopioid treatment options.

"At least at the medical school, the dental school, nursing school and pharmacy school level, you don't graduate from those places without having studied this stuff and understanding both the positives and the negatives associated with using it," Baker says. "In addition to that, making sure as a condition of relicensure, you're getting everyone who is writing prescriptions as part of that process."

Now, after decades of criticizing health care providers for undertreating pain and not prescribing enough pain medication, the pendulum is swinging back. Some dentists are getting back up to speed about alternatives to opioids.

"For most dental pains, the nonsteroidal anti-inflammatory drugs (NSAIDS) --that's Advil, Aleve, Naproxen — those agents are every bit as effective as one Vicodin or one Percocet," Moore says. "That's been shown over and over and over again."

This next generation of dentists is not only learning about how to prescribe opioids appropriately, but also about how to think about pain differently. At the Harvard School of Dental Medicine, students are learning how to approach pain a world away from opioids.

"You can approach it from opioid therapy, you can approach it from different neuropathy drugs, you can approach from stretching exercises to meditation," says Kellie Moore, a fourth-year dental student at Harvard. "And just kind of like, exhausting all the options."

Leaning on different methods of pain treatment can yield mixed success, she says: what works with one patient might not work for another.

Dental students are also rethinking what the goal of treating pain is.

"On a scale of 0 to 10, with 10 being the worst, if we can get you to a 4 or 5, could you live with that and still function daily?" says Sam Lee, a fourth-year dental student. "If the answer is yes, then I think it's important to the patient understand that that's what we're going to try to maintain as the new normal for them."

David Keith, an oral surgeon at Massachusetts General Hospital, agrees.

"I think it does us a disservice, making us and the patients assume that they should have a total smiley face and a zero level of pain," he said. "That's not the real world. So we take a tooth out. We do a dental implant. You're going to be sore for a few days, but that doesn't mean you can't go to work."

/ Jessica Cheung/NPR

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Jessica Cheung/NPR

The changing definition of pain is part of a larger change in the profession of dentistry. And Jeff Shaefer, an orofacial pain specialist who teaches at the Harvard School of Dental Medicine, says the role of the dentist is changing as a direct result of the opioid crisis.

"Dentistry is part of the problem and I think that hurts — that we've been overprescribing medication," he says. "Having a standard regimen to give every patient is not appropriate."

Nationally, the profession of dentistry is starting to change as well. This summer, the Commission on Dental Accreditation, which sets accreditation standards for all dental schools, ordered all graduates to be competent in accessing for substance use disorder.

But currently practicing dentists may not be so eager for a change to their profession. Keith, who regularly gives lectures to dentists in the state, has heard their complaints.

"There is a reluctance to add that, as there is reluctance to check blood pressure or check a list of medication their patients are on because it adds time to the day," he said.

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