State-of-the-Art Hygiene Therapy  

August 10, 2024 Stephen Malone DMD

By Stephen K. Malone, DMD and Michael Costa, DDS, MHS 

We all know that the instrumentation options for dental hygiene services have come a long way since the first dental hygienist scaled teeth in 1906.   Early in the 20th century, the only technology a hygienist had was a set of sharp metal instruments and a spinning brush of gritty pumice. In the 1950s, ultrasonic technology was invented which helped disrupt calculus, but hygienists still had to follow up with scalers and polishers. Similarly, since the days of first scientific articles regarding oral micro-organisms in the 1870’s, our knowledge has increased exponentially regarding the role of oral biofilm not only in oral diseases, but whole-body health.   

In 2021 our office staff attended continuing education courses with legendary periodontist, Dr. Sam Low. Dr. Low introduced our practice to new technology that would help elevate our hygiene practice by improving biofilm removal, increasing patient ownership of personal oral hygiene practices, decreasing damage to root surfaces and restorations, and providing a gentler patient experience.   

The instrumentation is provided though a unit called a Prophylaxis Master – which is a combination of two different treatment modalities.  The hygienist first uses the Airflow unit to remove soft biofilm and young calculus.  The airflow handpiece delivers a combination of water, air and fine erythritol powder to lift and suction away the biofilm as well as stains.  Once the biofilm, young calculus and surface stains are removed, the hygienist moves to the integrated Piezo scaler to gently emulsify the remaining calculus. There are several different tips for both units to access deep pockets and implant surfaces safely. 

Scientific research has demonstrated this system is the gentlest and most efficient way to eliminate bacteria around cosmetic work and titanium implants, on enamel and root surfaces, and even on soft tissues. 

The GBT Protocol 

To get the most out of our investment, we implemented the “GBT” protocol, which is recommended by EMS, the company that manufactures the Prophylaxis Master. The 8-step GBT protocol is as follows:  

  1. Assess the teeth, gingiva, periodontal tissues, and any implants and peri-implant tissues. 
  2. Use disclosing solution to identify areas of biofilm accumulation. The color will also guide the hygienist to remove the biofilm with Airflow handpiece, after which calculus is easier to detect. 
  3. Show the patient the colored biofilm to raise awareness. Spend time educating the patient and emphasizing the importance of prevention. 
  4. Removal of biofilm, early calculus and stains with the Airflow. Airflow Plus powder is safe to use on teeth, root surfaces, gums, tongue, and palate. It can also be used to clean dental implants, restorations, orthodontic appliances, and clear aligners. 
  5. Use Airflow Plus powder with the Perioflow® nozzle to remove biofilm in >4 to 9mm pockets, root furcations, and on implants. 
  6. Remove the remaining calculus, using the minimally invasive EMS PIEZON® PS instrument supra and subgingivally in up to 10mm pockets and clean >10mm pockets with a mini curette. Use the EMS PIEZON® PI MAX instrument around implants up to 3mm subgingivally and on restorations. 
  7. After checking to make sure all biofilm and calculus has been removed, diagnosing for caries, and applying fluoride for a fresh and smooth feeling. 
  8. Schedule the patient’s recall visit based on risk assessment. 

What Our Patients Love About It  

  • Patients trust the thoroughness of the therapy because they can see the disclosed biofilm before it is removed and its absence after it is removed.  
  • The therapy is more comfortable than traditional methods. The water is warmed, and there is minimal root surface sensitivity compared to traditional hand and ultrasonic instrumentation.  
  • This technology gently reaches into places where traditional instruments couldn’t remove stains and tartar.  
  • The education patients receive from our hygienists highlights the value of the therapy.  
  • We have found that this is a superior stain and calculus removing technology.  
  • The erythritol powder that is mixed with warm water is pleasant tasting.  

 What Our Hygienists Love About It  

  • Less hand instrumentation means less body fatigue.  
  • There is superior stain removal and visual evidence that the biofilm is completely removed.  
  • Patients don’t complain about sensitivity or “poking.”  

 What Doctors Love About It 

  • Patients are happier.  
  • Hygienists are happier.  
  • It eliminates patient complaints about hygienists who are either “too aggressive” or “not aggressive enough” with instrumentation.  
  • It prevents damage to cosmetic and implant restorations, as well as root and enamel surfaces.  

Note: We are not paid to promote EMS or Guided Biofilm Therapy. We honestly think this is the best way we can efficiently, comfortably, and thoroughly provide the comprehensive care our patients deserve—and we thought we should share our great experience 

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Stephen Malone DMD

Dr. Stephen Malone received his Doctorate of Dental Medicine Degree from the University of Louisville in 1994 and has practiced dentistry in Knoxville for nearly 20 years. He participates in multiple dental study clubs and professional organizations, where he has taken a leadership role. Among the continuing education programs he has attended, The Pankey Institute for Advanced Dental Education is noteworthy. He was the youngest dentist to earn the status of Pankey Scholar at this world-renowned post-doctoral educational institution, and he is now a member of its Visiting Faculty.

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The Effect of Rubber Dam Isolation on Bond Strength to Enamel 

March 13, 2024 Christopher Mazzola, DDS

Christopher Mazzola, DDS 

This is an example of a clinical study that can help us in our everyday practice of dentistry. Although the findings do not surprise us, keeping the findings in mind will guide us in decisions we make when performing treatments our patients are counting on to be long lasting. 

Dr. Markus Blatz is co-founder and past President of the International Academy for Adhesive Dentistry (IAAD) and Chairman of the Department of Preventive and Restorative Sciences and Assistant Dean for Digital Innovation and Professional Development at the University of Pennsylvania School of Dental Medicine in Philadelphia. He and a research team from the University of Coimbra, in Portugal, studied the effect of rubber dam isolation on bond strength to enamel. Their goal was to test two hypotheses. 

Hypothesis 1: Rubber dam isolation improves sheer bond strength independent of the adhesive system used. 

Hypothesis 2: A highly filled 3-step etch and rinse adhesive will provide higher bond strength values than an isopropyl-based universal adhesive. 

For their tests, they used OptiBond FL from Kerr for the 3-step etch and rinse adhesive and Prime & Bond Universal Adhesive for the isopropyl-based universal adhesive. 

The mesial, distal, lingual, and vestibular enamel surfaces of thirty human third molars were prepared (total n = 120 surfaces). A custom splint was made to fit a volunteer’s maxilla, holding the specimens in place in the oral cavity. Four composite resin cylinders were bonded to each tooth with one of two bonding agents (OptiBond FL and Prime & Bond) with or without rubber dam isolation. Shear bond strength was tested in a universal testing machine and failure modes were assessed. 

Both hypotheses were supported by the results reported in the Journal of Esthetic and Restorative Dentistry in November of 2022. 

  • With the rubber dam in place, both of the adhesives performed better than without the rubber dam in place, resulting in approximately twice as much shear bond strength with the rubber dam. 
  • The 3-step OptiBond FL system resulted in a more resilient bond than the Prime & Bond Universal adhesive. The OptiBond FL group with rubber dam presented the highest mean bond strength values. Fracture modes for specimens bonded without rubber dam isolation were adhesive and cohesive within enamel, while rubber dam experimental groups revealed only cohesive fractures. 

For the benefit of our patients, we shouldn’t cut corners that will impact the longevity of a restoration. My thoughts are that whenever we have basic pure enamel bonding it should be under a rubber dam, using a total etch, 3-step adhesive system. But considering dentin likes to be moist, we may need to make other clinical judgments.  

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Christopher Mazzola, DDS

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