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Case Study: Cap Guard Goes to the Dentist

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Case Study: Cap Guard Goes to the Dentist

About Cap Guard

Cap Guard and Kid’s Cap Guard offer face shield solutions and are part of the strategy to reduce transmission of COVID-19 in the community setting.  The innovative and patent-pending Cap Guard face shield provides a barrier that protects both parties engaged in communication while permitting full visibility of facial expressions and lip movement.

Many epidemiologists support the use of face shields as a face covering.  Eli N. Perencevich, M.D., M.S., Professor of Internal Medicine and Epidemiology at the University of Iowa Carver College of Medicine, recently gave an interview in which he said, “…face shields are both source control and protecting yourself from the droplets (respiratory) landing anywhere on your face.”   William Schaffner, M.D., an infectious disease specialist and Professor at Vanderbilt University School of Medicine states, “A face shield provides a barrier for anything going out, but also for things going in.” Another supportive observation comes from Amesh A. Adalja, M.D., an infectious disease expert and senior scholar at the John Hopkins Center for Health Security. Dr. Adalja feels face shields have the potential to be more effective than face masks alone because “…people are much less likely to touch their face when wearing a face shield. They can also be taken off and cleaned. In many ways, they’re a much more attractive option.”

Sourced and manufactured in the United States, Cap Guard is 100% recyclable, re-usable, and can be easily sanitized by hand washing with antibacterial soap. The optically clear and scratch-resistant shield mounts with live hinge clips to caps or visors that can convey a logo, mascot, or imagery. For further information visit

About Mark Cannon, DDS, MS

Dr. Mark Cannon is the senior partner and founder of Associated Dental Specialists of Long Grove. Forming the practice in 1981, he has the privilege of caring for many second-generation patients. Dr. Mark L. Cannon received his Doctorate of Dental Surgery from the University of Nebraska and attended Northwestern University for his Masters of Pediatric Dentistry. He completed his residency at Children’s Memorial Hospital and received his Diplomate status by the American Board of Pediatric Dentistry. He is a faculty member at the Northwestern University Dental School as a Professor of the Feinberg School of Medicine, Department of Otolaryngology- Division of Dentistry and is the Research Coordinator for the Pediatric Dental Program at the Ann and Robert Lurie Children’s Hospital of Chicago.

Dr. Cannon is a past president of the Illinois Society of Dentistry for Children, and a member of the International Association of Pediatric Dentistry. He has presented to state and local dental societies many times over the years and is a frequent keynote speaker at many national and international meetings. These organizations include the I.A.D.R./A.A.D.R., the American Academy of Pediatric Dentistry, the American Society of Dentistry for Children, Academy of Dental Materials, World Congress of Biological Materials, International Association of Pediatric Dentistry, Pediatric Dental Association of Asia, Australasian Academy of Pediatric Dentistry, World Congress of Preventive Dentistry, Korean Academy of Pediatric Dentistry, Mexican Academy of Pediatric Dentistry and the European Academy of Pediatric Dentistry. In addition, Dr. Cannon is also a guest lecturer at Sao Paulista State University, UNESP, in Aracatuba, Brazil, and at the University of Illinois, Chicago, Department of Pediatric Dentistry.

Of additional note, Dr. Cannon has been involved in microbiome and hologenome research, especially with the use of polyols to produce positive biofilm changes. The research has also concentrated on the epigenetic effect of microbiome shifts, the end products of bacterial metabolism, and the neurologic consequences of the microbiome shifts, such as, with Autism Spectrum Disorder. Dr. Cannon is associated with the Kilee Patchell-Evans Autism Research Group directed by Dr. Derrick MacFabe. For further information visit

Problem posed to Cap Guard’s Team

The first recorded COVID-19 case in Illinois occurred on January 24, 2020, when a Chicago woman who had just returned from Wuhan, Hubei, China tested positive. She was the second case in the U.S., and when her husband became infected, the couple became the first recorded case of human to human transmission in the United States. Cases continued to grow and in March, Illinois Governor J.B. Pritzker issued a disaster proclamation which eventually led to a shelter in place order that closed all businesses and schools through April 7, 2020, then extended to April 30, 2020, and then extended again until May 29, 2020.

When Dr. Cannon’s pediatric dental practice re-opened after several months of being closed, new policies and procedures needed to be implemented to ensure staff and patient protection from transmission of COVID-19. Safety procedures were spearheaded by Dr. Cannon. In years prior, face shields had been worn at Associated Dental Specialists of Long Grove, but they proved disadvantageous when procedures required the use of loupes or magnifiers. “Wearing loupes often prevented Dentists from using face shields,” said Dr. Cannon. “And the wrong face shield still prevents the comfortable wearing of loupes.” In addition, being a pediatric dental practice, face shields were observed to increase anxiety in children. However, Dr. Cannon felt strongly that full-face shields needed to be utilized in the COVID-19 era to effectively protect his staff from transmission during a dental procedure. When asked about the efficacy of face shields for protection, Dr. Cannon responded, “Face shields cover the entire face and more keeping the debris away from your eyes and off the surface of face and mask. It is indispensable.” Thus, Dr. Cannon sought to find the perfect face shield; one that would allow the unobstructed wearing of loupes or magnifiers, provide full facial protection, and somehow find a way to ease the anxiety of children undergoing dental procedures.


Solution afforded by the Cap Guard face shield

            Dr. Cannon and the staff at Associated Dental Specialists of Long Grove trialed the Cap Guard face shield. Sourced and manufactured in the United States, its 100% recyclability, and ability to be easily washed and sanitized were features that proved most attractive. Since the Cap Guard shield attaches with live hinge clips to any cap or visor brim with an apex several inches from one’s face, there is ample room for the use of loupes or magnifiers. “The hygienists were the first to rave about Cap Guard,” said Dr. Cannon. “Cap Guard allows us to use our favorite loupes.” Efficacy of protection also drove the evaluation by Associated Dental Specialists. “Indeed, the amount of debris that you find on the shield after every procedure is frightening, even with all the extra protections from aerosol,” observed Dr. Cannon.

Results and Conclusion from implementing the Cap Guard face shield

“We now, of course, use face shields for every procedure,” said Dr. Cannon. “I don’t see us ever going back to not wearing face shields. We see the debris that accumulates on our face shields with every patient we see, and we all wonder how that debris affected us before the pandemic.” Dr. Cannon’s administrative staff also wear Cap Guard resulting from its success throughout the practice. Dr. Cannon, after decades in pediatric dentistry, found a way to connect Cap Guard to his patients, “Being a pediatric office, Cap Guard allows us to have fun with the caps and to build team spirit. Being able to wear a fun hat helps to put children at ease. It can be a great way to break up any tension and reduce anxiety.” Dr. Cannon offered the following in summation of the success of Cap Guard, “Face shields, Cap Guard in particular, show how much you care about your patients and team members. You are also taking care of yourself – your own health. Plus, you can build team spirit with special caps. What a great idea!”

For further information visit