2024 Endodontic Forum

Prague, Czech Republic

May 10-11, 2024

WCLI 2016 APAC Symposium

Join us in Prague to learn how and why the world’s leading endodontists have integrated YSGG laser technology to further elevate their endodontic procedures.

The World Clinical Laser Institute (WCLI) has been holding forums & symposiums focused on laser applications in periodontology, implantology, endodontics, restorative dentistry, pain therapy, and other dental disciplines for more than a decade. In 2024, WCLI is holding its first forum that is focused on laser education for endodontic professionals.

This event will include fascinating presentations from world renowned endodontists, sharing their own unique experiences with YSGG technology in endodontic applications, along with social and networking opportunities to relax and make new friends while learning about new groundbreaking dental technologies. In addition to enlightening presentations by endodontists from the globe, both a periodontist and a general practitioner will present on how laser technology is providing unique clinical benefits in their field, which endodontists can also learn and employ to advance their practices. WCLI forums & symposiums have stood out amongst a world of dental conventions, consistently providing the most advanced dental clinical knowledge & insights! In 2024, this WCLI forum will be even more special with a specific focus on endodontics. We look forward to seeing you there!

Why Attend?

Learning is Fun!

Learning is Fun!

While WCLI has been consistently providing high quality laser training courses, WCLI is more than an educational association of dentists seeking clinical knowledge and techniques relating to the most advanced technologies in dentistry. As the largest organization of its kind, WCLI is a closely knit network of thousands of dental professionals who share a passion for improving the patient experience, elevating their clinical results to the highest level, and building the best possible practice they can.

At WCLI’s 2024 Endodontic Forum in Prague, dental professionals and endodontic specialists will learn from world renowned endodontic professionals sharing their own experiences, challenging cases and innovative techniques utilizing the unique YSGG laser technology. Above all else, the WCLI Endodontic Forum is a great place to meet new colleagues and forge lasting friendships with mentors and colleagues from around the globe. Experience the latest advancements in dentistry that are making a difference in the endodontic world.

It’s a full weekend of education and fellowship. Register today-don’t miss out!

Event Registration

WCLI 2024 Endodontic Forum

Prague, Chech Republic

May 10-11, 2024

Hotel Information

Prague Marriott Hotel Prague Marriott Hotel

Event Information

  • DOCTORS: Early Bird US $425

    (Register on or before November 30, 2023)

  • DOCTORS: General Registration US $650

    (Register on or after December 1, 2023)

  • RDH/Office Staff/Student: General Registration US $275

Prices including lunches, coffee breaks and Gala Dinner.

Cancellation Policy – Refunds less a $150.00 cancellation fee will be given for cancellations received in writing to [email protected] prior to April 30, 2023. Following this date, no refunds will be given, but a credit
will be issued to use towards another event within one year.


Dr. Marga Ree

Dr. Marga Ree - Netherlands

Marga Ree, DDS, MSc obtained her degree in dentistry from the University of Amsterdam in 1979 and completed her residency in endodontics in 2001. She is a popular speaker for dental and endodontic conferences, and has given over 300 presentations and hands-on courses in 30 countries all over the world. She is the primary author of many articles published in national and international journals and has contributed to several books on endodontics and restorative dentistry. From 1980 till 2020 she maintained a private practice in Purmerend, which for the last twenty years was dedicated to endodontics. She is presently working at a multidisciplinary dental practice in Amsterdam.
Dr. Carlos Boveda

Dr. Carlos Boveda - Venezuela

Carlos Boveda, DDS, CAGS,PhD., Director, Department of Endodontics Centro de Especialidades Odontológicas, Caracas, Venezuela

Dr. Boveda received his DDS degree in 1990 from Universidad Central de Venezuela and his postgraduates certificates in Endodontics in 1991 from Hospital “Carlos J. Bello”, Cruz Roja Venezolana and in 1993 from Universidad Central de Venezuela. He had served from 1992 to present as Invited Professor and from 1995 to 2002 as Committee member of the postgraduate Endodontics program at the Faculty of Dentistry, Universidad Central de Venezuela. Since 1991, he has run a practice limited to Endodontics at Centro de Especialidades Odontológicas in Caracas, has been an invited professor at numerous universities in and outside of Venezuela, authored several articles and chapters of books, and has presented more than 100 invited lectures internationally. He received his PhD title in Dentistry from Universidad Central de Venezuela in 2022.

Dr. Justin Kolnick

Dr. Justin Kolnick - USA

Dr. Kolnick is not only an accomplished endodontist, but is also a world authority on laser-assisted endodontics and frequent lecturer at international endodontic conferences across the globe. Dr. Kolnick attended dental school at the University of the Witwatersrand in Johannesburg, South Africa. In 1982, he graduated from the postdoctoral endodontic program at Columbia University in the City of New York. Dr. Kolnick has been committed to endodontic education, first as an Associate Clinical Professor in Endodontics at Columbia University and then as an Attending at Westchester Medical Center and an Associate Clinical Professor in Endodontics at New York Medical College. Although he no longer holds these positions, he continues to lecture extensively on a local, national and international level and has published several articles on endodontics.

Dr. Witkowski

Dr. Grzegorz Witkowski - Poland

Dr. Grzegorz Witkowski was born in 1979 in Poland. He studied at the Medical University of Warsaw and graduated in 2003. Member of the European Society of Endodontics, Polish Association of Endodontics, and American Association of Endodontics. Dr. Witkowski is a recognized international speaker and author of many articles regarding advanced endodontics, lasers in endodontics, cbct, CAD/CAM solutions, and the use of the microscope in everyday practice. His passion is dental microscope photography and videography. From 2004 works in a private clinic in Olsztyn, Poland, focusing on endodontics (mainly retreatment), CAD/CAM, and laser dentistry. In 2015 he founded a Polish lecture team Dental Masters Group with a main focus on teaching advanced endodontics, prosthodontics, and restorative dentistry. In 2018 he opened one of the most advanced private dental training centers in Poland where he and his team of lecturers organizes local and international programs and KOL meetings. Every Year they train approximately 500 – 600 dentists in the Center. He also became the first Polish Gold Member of the biggest international endodontic group Style Italiano Endodontics. He is an owner of a professional video studio for recording educational dental videos. In 2020 he started a project with new online programs called DMG TV where he invites other lecturers to speak about different topics. Up to now, he performed more than 80 live-streaming dental programs and counting.

He is the author of the book Endodontic Procedures published with Quintessence Publishing Poland in 2022. The book covers clinical protocols for everyday practices and helps dentists to understand how to perform predictable endodontics.

Dr. Grzegorz Witkowski is well renowned international based lecturer with more than 16 years experience in lecturing. He was lecturing in countries such as Moldova, Czech Republic, Albania, Belgium, Poland, Latvia, Guatemala, Hungary, Croatia, Azerbaijan, Russia, Slovakia, Bulgaria, Romania, Uzbekistan, Ukraine, Italy, Finland, Turkey, Germany, and others. His lectures cover all subjects regarding clinical endodontics (including advanced retreatment) and implementation of microscope and laser technology in dentistry as well as post endodontic direct and indirect restorations and their biomechanics.

Dr. Fernando Meza - USA

Dr. Meza is a graduate of Vanderbilt University, where he received his B.A. in Psychology in 1997. In 2002, he received his D.M.D. from the University of Connecticut School of Dental Medicine. After graduating from dental School, Dr. Meza went on to receive his specialty training from Temple University School of Dentistry, where he obtained his Certificate in Endodontics. During his residency program, Dr. Meza conducted research using the Biolase Er,Cr,YSGG laser to investigate its effectiveness in disinfecting root canals. The promising results of his research led to a publication in the Journal of the American Dental Association (JADA July 2007, Volume 138 – Research).

Dr. Meza is originally from El Salvador. He is fluent in Spanish. He grew up in Northern Virginia attending Fairfax County Public Schools including Langley High School. After his graduate and professional studies, he returned to Northern Virginia where he has been practicing endodontics since 2004. Dr. Meza practices full time in his private endodontic office but is committed to education and advancing the field of endodontics. He has taught dental students and residents as Clinical Assistant Professor at the University of Maryland Dental School from 2005 until 2017 and now continues to teach and train dentists on the Waterlase iPlus in the full scope of endodontics.

Dr. Issac Kably Mizrahi

Dr. Isaac Kably Mizrahi - Mexico

Dr Kably received his dental surgeon degree in the Universidad Tecnológica de México and attended the
postgraduate program at New York University College of Dentistry where he obtained his Endodontics
Certificate. Dr. Kably has been a private practitioner in endodontics for over 20 years, and he also received his mastership and MSc in lasers in dentistry from AALZ in Germany where he now lectures in booth programs internationally. He recently received the WCLI Mastership as well. 

Dr. David Kim

Dr. David Kim - USA

Dr. David Kim received his dental degree (D.D.S.) from the University of Maryland Dental School, and completed his periodontology training and Doctor of Medical Science (D.M.Sc.) in oral biology from the Harvard School of Dental Medicine. Currently, as an Associate Professor at the Harvard School of Dental Medicine, he is also the Director of the Postgraduate Program in Periodontology and the Continuing Education at the Harvard School of Dental Medicine.

Dr. Kim’s clinical and research interests have been on the use of innovative concepts, technologies and biomaterials to enhance intraoral soft and hard tissue formation, especially by incorporating the tissue engineering concept to repair and regenerate soft and hard tissue volume for patients requiring dental implants to replace missing teeth.  He has conducted several research projects utilizing laser in treating periodontal diseases as well as treating peri-implantitis and they have been published in peer review journals.

Dr. Kim is a past recipient of the Joseph L. Henry Award recognizing excellence in research and clinical training from Harvard. In addition, he received Balint Orban Research Award, Award for Outstanding Teaching and Mentoring in Periodontics, and Teaching Fellowship from the American Academy of Periodontology.  He is a diplomat of the American Board of Periodontology and maintains a clinical practice in Boston, Massachusetts, USA.

Dr. Marina Polonsky - Canada

Dr. Marina Polonsky graduated from the University of Toronto, Canada in 1999, with the Dean’s Gold Medal of Achievement and maintains a private general practice in Ottawa, Canada, with focus on multi-disciplinary treatment utilizing lasers of different wavelengths.

Dr. Polonsky holds a Mastership with WCLI (World Clinical Laser Institute), Master of Science in Lasers in Dentistry degree from RWTH University in Aachen, Germany. She is a recipient of Mastership Certificate with ALD (Academy of Laser Dentistry) and is a recognized member of the ALD Speaker Bureau. Dr. Polonsky is a founder of the Canadian Dental Laser Institute (CDLI), an organization dedicated to providing quality continuing education in Laser Dentistry in Canada. CDLI is the only ALD affiliated international study club in Canada.

Dr. Polonsky is actively involved in the educational aspect of dental laser technology by teaching laser safety courses, Diode and Erbium certification courses, as well as lecturing world-wide on laser-assisted dentistry. She is a key opinion leader (KOL) and a Clinical Mentor for Biolase Technologies Inc. and has been involved in the development of the newest all-tissue laser system, Waterlase Express. Dr. Polonsky is the author of multiple scientific papers, reviews and case reports on the uses of lasers in dentistry, she is the chief editor for JLAD (Journal of Laser-Assisted Dentistry) and a peer-reviewer for LIDS (Lasers in Dental Science) by Springer. Since 2017, Dr. Polonsky has become the Chief Editor of Laser Dentistry issue of the Oral Health Journal and is a member of the Executive Committee of Oral Health.


Dr. Marga Ree (Netherlands)

The Role of the Er,Cr:YSGG Laser in the Management of Traumatic Dental Injuries

Tooth fractures can occur at any age due to falls, sports, traffic accidents or foreign objects striking the teeth. The consequence of such an impact on a tooth varies from mild enamel chipping to complex crown-root fractures that require a multi-disciplinary approach. This presentation will focus on current treatment approaches for crown, crown-root and root fractures, with emphasis on the role of minimally invasive endodontic and restorative dentistry. Careful treatment planning and timely, well-executed treatment is paramount to avoid further damage to the dentition. A variety of cases with long-term follow-ups will be presented.

Marga Ree has been in dental practice for over 40 years, has practiced endodontics as a specialist for 25 years and implemented the Er,CR:YSGG laser over 1 year ago. She will share her experience with you in which way the laser can facilitate treatment procedures in the management of dental trauma.s

Dr. Carlos Boveda (Venezuela)

Er,Cr:YSGG Laser and Dentin Conservation in Root Canal Treatment

Although survival rates after endodontic treatment are high, occurrence of tooth/root fractures is a concern, attributed to tooth structure removal associated with endodontic cavity preparation. Novel contracted endodontic cavity (CEC) designs and conservative root canal preparations discard traditional principles of outline and convenience form and emphasize directed dentin conservation, in line with the contemporary concept of minimally invasive dentistry. While CEC and conservative techniques may help increase fracture resistance of teeth potentially extending long-term survival, it also may compromise canal disinfection, potentially impairing periapical healing. This session will describe the clinical context and application of CEC and conservative preparations techniques with the use of the Er,Cr:YSGG Laser. The results will be debated in the context of minimally invasive endodontics.

Dr. Justin Kolnick (USA)

Endodontic Expectations after 20 Years of Laser-Assisted Practice

Introduction of new technology into endodontic practice, such as the electronic apex locator, surgical microscope, CBCT, new generations of files and sealers, has allowed Endodontics to evolve into the specialty it is today.  However,  it is the Laser technology that has had the most profound impact on the way Endodontic therapy is predicted, planned and performed, altering expectations and perceptions of successful clinical outcomes. This presentation will outline how 20 years of Laser-Assisted technology has transformed my Radial Apical Cleansing protocol into a comprehensive treatment concept, enhancing efficacy and streamlining workflow.  This presentation will also focus on the management of inaccessible and unfound root canal anatomy and how this, together with concepts such as Laser Patency and the extent of cleaning and disinfection, can influence the prediction of Endodontic outcomes, the ease of achieving these desired outcomes as well as the outcome of Endodontic treatment itself.

Dr. Grzegorz Witkowski (Poland)

Laser Endodontics – New Beginning

Endodontic treatment is always connected to instrumentation protocols containing glide path creation, shaping with mechanical instrumentation and irrigation protocols followed by obturation of the endodontic space. These concept is well known for years and very well established however its also connected with lots of technical problems. From the very beginning all instrumentation protocols are prone to creating mistakes such as ledges, file separation, misshape or others. During the lecture we will discuss the past, present and future of endodontic treatment protocols. Can we stop using mechanical instrumentation and start doing fully non-instrumentation endodontic treatment? We will discuss these topics based on available research and clinical protocols.

Dr. Fernando Meza (USA)

Exploring Laser Patency and Laser Activated Irrigation In the Management of Calcified Canals

Laser Activated Irrigation (LAI) is the interaction with irrigating solutions consisting mainly of water to produce cavitation bubbles and acoustic streaming. LAI in the root canal space is optimal with an erbium class of lasers since its wavelength is primarily absorbed by water molecules. We will discuss how the Er;Cr:YSGG is able to simplify and enhance the endodontic experience by clearing up organic tissue, inorganic debris, and smear layer related to instrumentation. The concept of laser patency will be discussed and how it is implemented to establish apical patency with a file. We will also discuss how location and instrumentation of calcified canals is facilitated at the coronal and canal levels.

Dr. Isaac Kably Mizrahi (Mexico)

Laser Assisted Endodontic Microsurgery

During this presentation, we will be exploring the application of laser technology in the field of endodontic microsurgery. The discussion will include eligibility criteria for patients, indications for laser use, as well as the management of soft tissues and flaps with the assistance of lasers. Moreover, we will examine how the employment of this technology can lead to improvements in treatment outcomes through tissue regeneration, while also reducing time spent on procedure execution

Dr. David M. Kim (USA)

Preserving Natural Teeth: Let’s Work Together

Despite advancements in dentistry, the reality of tooth loss persists, particularly among geriatric and medically compromised patients. This vulnerable population will also suffer from functional decline and age-related pathologies. Thus, preserving and restoring teeth and oral function will be crucial, and the loss of teeth significantly hinders chewing ability because prosthodontic treatments cannot fully restore masticatory performance. It’s worth noting that the retention of natural teeth is linked to a longer life expectancy. This presentation will introduce the role of dental lasers in periodontics and how different specialists in dentistry could work together to keep teeth for life.

Dr. Marina Polonsky - Canada

From Access to Apex: Introduction to Laser Assisted Endodontics

This lecture offers an important background in basic laser physics and laser tissue interactions. Explanations of mechanisms of action of hard tissue ablation, disinfection, smear layer removal. What is photo-acoustics, cavitation, negative pressure? How to remove crowns and veneers and minimally invasive access? Photo BioModulation and its role in laser endodontics. Dual Wavelength endodontics: is it necessary?

The evolution of lasers in endodontics: a literature review. What we know, what we do not know and what we need to continue to research to understand better with respect to the concept of Laser Activated Irrigation.  This lecture is an important background to understand the following symposium lectures.


Friday, May 10, 2024

7:30 to 9:00 


9:00 to 9:15

Opening Remarks & Welcome Address — Dr. Marina Polonsky

9:15 to 10:20

From Access to Apex: Introduction to Laser Assisted Endodontics — Dr. Marina Polonsky

10:20 to 10:40

Morning Break

10:40 to 12:00

The Role of the Er,Cr:YSGG Laser in the Management of Traumatic Dental Injuries — Dr. Marga Ree

12:00 to 1:10 


1:10 to 2:30 

Er,Cr:YSGG Laser and Dentin Conservation in Root Canal Treatment — Dr. Carlos Boveda 

2:30 to 2:50 

Afternoon Break

2:50 to 4:05

Laser Assisted Endodontic Microsurgery — Dr. Issac Kably

4:05 to 5:15

Laser Endodontics: New Beginning — Dr. Grzegorz Witkowski

5:15 to 6:15

Laser Physics Review for Assoicate Fellowship Examination (Optional) — Dr. Marina Polonsky

6:15 to 7:30

Cocktail Hour


Gala Dinner

Saturday, May 11, 2024

8:00 to 9:00 

Associate Fellowship Examination (Optional)

9:00 to 9:10

Second Day Opening Remarks  — Dr. Marina Polonsky

9:10 to 10:30

Preserving Natural Teeth: Let’s Work Together— Dr. David Kim

10:30 to 10:50

Morning Break

10:50 to 12:20

Exploring Laser Patency and Laser Activated Irrigation In the Management of Calcified Canals — Dr. Fernando Meza

12:20 to 1:40 


1:40 to 2:40 

Laser’s Role in Providing Better Patient Care in Endodontics — Panel Discussion (Dr. Ree, Dr. Meza, Dr.Boveda moderated by Dr. Kolnick)

2:40 to 3:00

Afternoon Break

3:00 to 4:30

Endodontic Expectations after 20 Years of Laser-Assisted Practice — Dr. Justin Kolnick

4:30 to 4:45

Closing Remarks — Dr. Marina Polonsky