Seminar Chamfer Margin Showdown


Toronto Implant Academy’s Virtual Presentation

 May 21, 2021 9am – 10:30am EDT

Think Current Screw-in or Cement-in Implant
are Best?
 They Both Expose You and Your Patients to Risk Factors For
Peri-implant Disease 

Course Description

Restoring implants involves the use of high precision parts that have a low tolerance for error.

Many dentists choose to restore dental implants using a screw-in system of installation because they perceive it to be simple and they want to avoid using cement because they think it is problematic.
In actuality, the screw-in system is far from simple. It has inherent problems that render patients susceptible to misfit joints and treatment related cantilevers that increase mechanical loads on these misfit joints and can block access to care.
The screw-in system has the dentist making prosthesis-design compromises because it is based on a limited selection of premade stock parts needed to treat a wide variety of tissue configuration conditions.
The current screw-in system is fraught with deficiencies.
Intra-oral cementation, on the other hand, can reduce or eliminate several risk factors for complications related to the screw-in technique, but it has been plagued by complications related to open and overhanging margins and residual subgingival cement.
What is the answer? Is it just “Pick your Poison” and accept that 67% of your patients will develop Peri-implant disease?
Learn about the alternative on May 21.

What you will learn in the course

1.  Implant survival rates have not improved over 30 years despite huge advancements in technology and experience. Find out how to identify the longstanding root problems of installation related complications that have hampered progress.


2. When restoring a patient using the current Screw-in System of installation, find out how these root causes make it challenging to impossible to optimize the fit of implant parts in the mouth. In addition, when restoring all-on-x type patients, find out how the use of a limited selection of stock parts can force compromise and make it difficult to optimize treatment results. 


3. Find out how the current Cement-in System of installation fails to prevent both poor prosthesis margins and submarginal cement, despite using site-specific custom abutments and prosthetics. However, this system does make it possible to optimize the fit of the implant-abutment connection.


4. Find out how the Reverse Margin™ System uses custom design and a low-pressure installation protocol to help the dentist optimize the fit of implant-connections, while preventing overhanging and open margins and submarginal cement.


5. Watch the Showdown. Find out how the Reverse Margin beats the Chamfer Margin at preventing submarginal cement both in vitro and in vivo and why the Reverse Margin System is the basis of a New Standard of Care.  

Dr. Emil LA svoboda

Dentist, Researcher, Inventor, Implantologist, Writer, Speaker
Honored Fellow, American Academy of Implant Dentistry (
Diplomate, American Board of Oral Implantology / Implant Dentistry (

Tel: 1-888-976-7893
Critical thinking is deciding rationally what, or what not, to believe.