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October 10-16 2021 is MDR Week. We thank and appreciate our MDR team for their dedication to helping to keep our patients safe. The article below first appeared in the 2020-2021 issue of the Alumni Anchor.

Behind a set of locked metal doors, the Faculty of Dentistry鈥檚 medical device reprocessing (MDR) unit would not look out of place in a science fiction film. The overwhelming impression is of white and steel, apart from the neat stacks of blue sterilization wrap-covered packages of instruments. The walls are dotted with first-aid and eyewash stations and sharps disposal containers.

When the Faculty鈥檚 clinics are in full swing, the MDR team of 10 rotates through four shifts a day, 6:30 to 2:30, 7:00 am to 3:00 pm, 10:00 am to 6:00 pm, and 10:30 to 6:30. On Mondays there is a 1:00 pm to 9:00 pm shift to cover the weekly clinic that cares for new immigrants and refugees to Nova Scotia. Their task is to sterilize the thousands of dental instruments that are used in the dental school鈥檚 clinics each week.

The arrival of COVID-19 has added a new urgency to their work, but their central mission 鈥� even in pandemic-free times 鈥� is to stop the chain of infection.

鈥淲hat we do is so obvious and yet it鈥檚 not,鈥� says Cheryl Mullen, one of the MDR technicians on the team. 鈥淲ithout MDR, the whole system would collapse.鈥�

鈥淭his is what we live for,鈥� says Lisa Crotty, supervisor of the MDR team. 鈥淢aking equipment safe for people to use is the main point of our profession.鈥�

Changing with the times
When the chief medical officer for Nova Scotia closed down dental clinics at the end of March, the Faculty of Dentistry鈥檚 clinic reopened as one of just three emergency clinics in the province.

Working under new protocols, the oral healthcare providers in the clinic were instructed to behave as if every patient were infected with COVID-19. Likewise, in MDR, all staff were trained to assume that every instrument was contaminated with the virus.

鈥淚t鈥檚 at times like these that everyone can see the value in what we do,鈥� says Crotty. 鈥淓ven though we were well prepared for this moment, we had several meetings to address the question of how we could still function and keep everyone safe.鈥�

While the clinic treated emergency patients each morning with a small team of faculty, residents, and volunteers, reserving the afternoons for cleaning and reviewing protocols, MDR operated with rotating teams of two, who went into the Faculty twice a week to process instruments. By working this way, staff numbers in the building were kept to a minimum.

Although standards are normally rigorous, MDR protocols were adjusted to bump up infection control measures even further. The MDR staff normally wear full PPE when they are dealing with soiled instruments, but for the emergency clinic they added higher level hospital-grade masks, goggles, upgraded surgical caps, and disposable plastic shields for use when hand-cleaning instruments. Instruments were hand-dried rather than blow-dried with clean compressed air to minimize the use of aerosols.

鈥淚t鈥檚 at times like these that everyone can see the value in what we do.鈥�

Every instrument has a name and is inspected prior to the sterilization process. The blue sterilization wrap is sealed with heat sensitive tape, so it is obvious when it has been processed in the sterilizer. Importantly, every tray of instruments has a stamp that indicates what sterilizer the tray went into, what sterilization cycle was used, and the date the tray was sterilized. 鈥淲e can track anything,鈥� says Janice McNamara, which is important if the instruments need to be recalled for any reason.

The added precautions taken when the emergency clinic was the only clinic providing care may have increased the number of precautions taken in the MDR unit, but they also made the space eerily quiet. 鈥淭his room is usually noisy with the sterilizers beeping and buzzing, the sound of equipment being washed, and the clinking of metal on metal,鈥� says Crotty. 鈥淲ith only one sterilizer and one piece of washing equipment operating at a time, it felt like a very different place because it was so quiet.鈥�

The upside of working under the strict protocols was the sense of connectedness among the group. Bi-weekly Zoom meetings helped to keep the group feel supported and that it was working as a unit, even though there was little in-person contact.

Crotty also says that the experience has had its rewards. 鈥淚t鈥檚 at these times that we see the value in what we do. It brings us happiness to be part of the reason why the Faculty has the option to keep the clinic open. We鈥檙e very proud of that.鈥�

Getting back to 鈥渘ormal鈥�
As restrictions on dental practices have lifted and the Faculty of Dentistry gained university approval to bring back its students for the current academic year, the MDR unit is returning to a normal schedule, with all the beeping, buzzing, and other noises that it entails. The high level of PPE is here to stay for a while, however, as are the precautionary measures the team is taking to avoid creating aerosols.

鈥淲e鈥檙e excited to be back working together as a team,鈥� says Crotty, 鈥渁nd we鈥檙e even pleased that the pandemic offered us an opportunity to re-evaluate and build on our existing safety protocols.鈥�