Ryan Millet's name and photo are among 13 names that appear on Facebook screen shots provided to CBC News in December. His photo appears in the screenshots as well.
He has chosen not to participate in the restorative justice process set out by Dalhousie University.
Tuesday afternoon, before the start of the hearing, Millet's lawyer Bruce MacIntosh said the university is looking at having an external person from the senate overseeing the disciplinary committees. MacIntosh said it's not clear whether that will happen.
MacIntosh said the process is unacceptable and he wants his client completely cleared.
"We keep getting rules written as we're going along. It's simply not acceptable," he said. "But at the end of the day, if the committee does its job properly tonight, then all of that will at least be behind this for Ryan and that's what we're going upstairs for now."
Millet did not speak going into the hearing.
MacIntosh said he not only wants his client's suspension lifted, but Millet's reputation restored.
"This will go as far as it has to go until Ryan Millet's suspension is not just lifted, but his reputation cleared," he said.
"Various governing authorities across the country have said it's nothing to do with conviction, the mere fact that he's been listed and identified, will now cause them to investigate him again. That is totally unacceptable. If he's cleared here tonight, then we'll look for the next step to make sure that he can go on and be the good dentist that I know he wants to be."
The hearing is expected to take several hours.