Dear Patients and Colleagues:


We sincerely hope that your family is healthy and safe as we cope with the COVID-19 outbreak. 

We have finally reopened our doors to take care of your dental needs. During our temporary closure we donated 100's of masks and cases of gloves to our medical peers to bridge them during supply chain backups. During our closure, we have been busy as an office and profession to learn about this virus and develop a plan to implement the safe return to work.

At Johnstone Periodontics, Cleaner Air in the surgical office is our highest priority. Because of this, we have instituted a number of strategies to improve the air quality and reduce the chance of bio-aerosols circulating in our office.  

  1. We have installed “Purevac“ high volume evacuation tips for all surgical and hygiene rooms. This enables a one-handed approach to evacuate the patient's oral cavity of aerosols, splatter, fluid, and debris, while also providing retraction, visibility, and illumination to the treatment area.  This system helps to eliminate over 90% of aerosols created during dental procedures.
  2. We have installed a custom plexiglass shield in our front desk reception area. Our acrylic hygiene sneeze guard allows us to operate safely, not only to protect our frontline administration team but also to protect and reassure our patients keeping adequate physical distance in our reception area.  No metal surfaces are used, meaning a shorter life span for any contaminating virus.
  3. We have gone completely paperless!! We have acquired advanced digital e-signing pads which will enable us to wipe down and disinfect them after every use.
  4. We have ordered eight additional Surgically Clean Air Purifiers in addition to our large surgically clean air unit we have had for the past 8 years. These medical grade air purification systems utilize a multi-stage air purifying technology, including proprietary HEPA-RX filters and UV lights to work together to clean, purify and re-energize the indoor air. The six stage filtration system works to remove particulate matter from the air – including potentially infective droplet nuclei. This reduction (dilution) or complete elimination of viruses, fungal and bacteria (99.9%) breaks the cycle of airborne disease transmission and reduces patient anxiety. “It’s like hand sanitizer for your indoor air”. This filtration system removes dust and pollen that cause allergies, kills bacteria and viruses that make people sick, eliminates odors and irritating volatile organic chemicals (VOC) and, re-energizes stale indoor air to facilitate breathing. This system leaves everyone feeling more revitalized.
  5. We have purchased a ULV Fogger Sprayer to disinfect and sterilize each and every room daily and nightly. The ULV (ultra-low volume) fogger, also called cold fogger, does not use heat. The Ultra-Low Volume treatment is the latest technique of light fumigation for internal areas. The treatment involves emitting tiny droplets of specially formulated chemical preparation into the open areas. The active molecule is hypochlorous acid (HOCl). Hypochlorous acid is a powerful oxidant and is 100 times more efficient at killing bacteria than chlorine bleach or sodium hypochlorite (NaOCl). It also kills the COVID-19 virus! Hypochlorous acid is safe and natural. It is found in our blood as one of the most powerful biological oxidants generated by our white blood cells against invading pathogens. This is just an added measure we have added to the practice in keeping you and our staff safe!
  6. We have hired a COVID screener/greeter. This person ensures that there is physical distancing when you arrive and does a full COVID screening prior to your appointment. The COVID screener/greeter will ask you screening questions, have you saniztize your hands, have you put on shoe coverings and keep you safely distanced from other patients utilizing our two waiting rooms and/or eight operatories. After each patient, the COVID screener/greeter disinfects every surface, door handle, chair, doorbell and consent form that has or may have been touched.

As surgical professionals, we are compelled to make every effort to reduce the possible transmission of disease and route of infection. At Johnstone Periodontics we have taken necessary precautions in protecting our patients and staff from the transfer of infection by reducing the levels of bio-aerosols within our office. We look forward to seeing your smiling faces soon!

***We encourage you to watch a short video on how we are keeping you safe located on our main page to the right of the screen*** 

Toronto, ON Periodontist
Dr. Andrea Johnstone & Associates

Dr. Johnstone and her Associates are board certified Periodontist who provide comprehensive periodontal care including periodontal surgical procedures, dental implants, teeth expressbone grafting and periodontal surgery asleep.

Toronto Periodontal Care

Periodontal treatment is necessary when conditions affect the health of your gums and the regions of your jaw bone which hold your teeth in place.

Implants with ease

Dental implants are designed to provide a foundation for replacement teeth that look, feel, and function like natural teeth, with easy outpatient procedures.

Periodontal Therapy Asleep

We offer a full range of anesthetic options for our patients, including Nitrous Oxide, Conscious IV Sedation and General Anesthesia. Our primary goal is your comfort.


Vitamindrip is an IV recovery treatment that helps facilitate faster recovery after surgery. A high-concentration of fortifying vitmamins are delivered directly into the bloodstream.

We hope you find this web site useful and invite you to contact us with your questions at any time.