Dental Care While Wearing an Essix Retainer 

April 15, 2024 Lee Ann Brady

By Lee Ann Brady, DMD 

One of the most common ways that we temporize a patient who is having maxillary anterior implant dentistry is with an Essix retainer. Some patients will wear it 24 hours a day and others for less. Hopefully they are taking it out to rinse, brush, and floss, but the reality is they are wearing a removable device that covers all of the tooth surfaces for a lot of hours every day, and we’re increasing their risk of caries, decalcification, and gingivitis. 

In addition to discussing the normal oral hygiene to be done at home, in our practice, we typically dispense a product like Clinpro 5000 from 3M or MI Paste from GC America. These are high calcium and fluoride products that provide fluoride treatments inside the Essex retainer. 

  • If a patient is sleeping in the Essix, the instructions are to brush and floss the teeth and then use a toothbrush to spread a little bit of Clinpro or MI Paste on the inside of the retainer before going to sleep. 
  •  If they are not wearing the Essix during sleep, the instructions are the same but to wear the Essix for up to an hour every evening before removing it to go to sleep. 

If the patient’s caries risk is high, I prefer using 10% carbamide peroxide gel instead of Clinpro or MI Paste. This is the active ingredient we us in perio trays to help prevent gingivitis. This is also the means by which patients can whiten their teeth while wearing an Essix retainer. 

To prevent damage to the Essix, instruct patients to rinse it with cold water and, when not wearing it, to store it in the provided container.  

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Toothpaste & Prophy Paste Abrasion

November 25, 2019 Lee Ann Brady DMD

Both dentin and enamel can be worn down at a more than normal pace when exposed to very abrasive toothpastes.

We have learned that this damage is not being caused by the toothbrush, but the material being put on the toothbrush. As the desire to have whiter and whiter teeth has become popular, manufacturers have increased the abrasiveness of toothpaste to more effectively remove the external stains. In addition, tarter control and other newer versions of toothpaste designed to grab market share of consumers can also tend to be more abrasive. 

Ideally, we would like to be brushing with a material that has an RDA (relative dentin abrasivenessof less than 80, but the FDA allows toothpaste to be sold with an RDA up to 200. The original Colgate toothpaste has an RDA in the 70’s. Most Sensodyne have RDA’s below 85, but several of the 2 & 1 tarter control and whitening have an RDA close to the maximum of 200. The abrasiveness can damage restorations, increase wear of exposed dentin and exacerbate sensitivity. At my Scottsdale, AZ practice, we keep a list of the most common toothpastes with their RDA, so we can discuss this with our patients. 

Prophy paste, even the fine, is generally more abrasive then over the counter toothpastes.

In addition, it is applied using a prophy cup going at 20,000 rpm’s with much more pressure. Even though the incidence is much less frequentbeing 2 to 4 times per year instead of every day, this can still be a significant issue. 

A cool little experiment is to take some microscope slides and using your fingers rub prophy paste around on them and then rinse. Look at the slides with light behind them. You’ll be surprised to see a slide is scratched after just one application. This is the same thing that will happen to ceramic restorations. The glaze will be easily scratched. The surface of the crown or veneer will begin to deteriorate. 

Similarly, abrasive prophy paste will increase a patient’s sensitivity if used on exposed roots, accelerate the wear on exposed dentin or cementum, and can damage other restorative materials. The RDA of prophy paste can range from 150 for fine to up over 300 for coarse. Alternatives are to use products like Clinpro 5000 or MI Paste as a prophy product, both of which are low in abrasiveness. In my office, we use a product called Proxyt, from Ivoclar. It is a non-abrasive prophy product and is available in 3 grits and with and without fluoride. All three of the varieties have RDA’s between 7-83 and are safe to use on dentin, cementum, and ceramic. 

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Lee Ann Brady DMD

Dr. Lee Ann Brady is passionate about dentistry, her family and making a difference. She is a general dentist and owns a practice in Glendale, AZ limited to restorative dentistry. Lee’s passion for dental education began as a CE junkie herself, pursuing lots of advanced continuing education focused on Restorative and Occlusion. In 2005, she became a full time resident faculty member for The Pankey Institute, and was promoted to Clinical Director in 2006. Lee joined Spear Education as Executive VP of Education in the fall of 2008 to teach and coordinate the educational curriculum. In June of 2011, she left Spear Education, founded leeannbrady.com and joined the dental practice she now owns as an associate. Today, she teaches at dental meetings and study clubs both nationally and internationally, continues to write for dental journals and her website, sits on the editorial board of the Journal of Cosmetic Dentistry, Inside Dentistry and DentalTown Magazines and is the Director of Education for The Pankey Institute.

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