This is a private website created to aggregate clinical case information about the products of DirectaDentalGroup, a leader in the dental direct composite contact points restoration.
Alexander Apokin, Clinical Analyst & Creator of the #RSBC Protocol. Alexander is a pioneer in High-Dynamic-Range (HDR) dental videography. Through Polydentia.online, he provides the global community with transparent, high-definition clinical, truths shares a library of 50+ high-definition clinical cases, focusing on the intersection of Swiss precision tools and advanced adhesive science. By bypassing traditional corporate filters, this platform showcases the intersection of Swiss precision tools and advanced adhesive science in real-world conditions.
In terms of clinical practice, Polydentia is one of the “gold standards” for matrix systems and luting. Their solutions are often chosen by clinicians who require high contact point density and polymerization stress quality (due to reliable wedging).
My contribution stands out precisely because of the technological advancement of the content: the use of high-dynamic-range video allows clinicians to see the nuances of matrix adaptation and material behavior that are typically missed with standard filming. This makes this resource one of the most detailed training manuals on Polydentia instruments.
For the educational platform on polydentia.online, this concentration of materials allows us to move away from the “just see what I can do” format to the “learn to do the same, seeing every detail” format.


Why did this site come about?
Here is the result of 10 years of my clinical work:
They helped a lot in making the decision to launch this site:
- Seledtsov Andrey Vasilievich – General Director of Rubberdam Club LLC
Further plans for the development of this site:
- The Learning Management System will be integrated in this web-site
- Training courses have been created on all aspects of the use of rubber dam systems , matrix systems and other accessories.
- All clinical examples I have completed and documented will be systematized into it as a single training program, taking into account all manipulations using the rubberdam isolation system (a newer, expanded and more technical English-language version ) and the assistance of an assistant.
- I invite dentists to join the development of a community of competent doctors who also see art in the profession of dentistry. Read the regulations on how to become a co-author on this site and an opinion leader in this area of dentistry.
If your company needs help?
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If you are a young dentist or student:
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