He is currently the deputy director of Peking University Hospital of Stomatology Clinical Division, director of Esthetic Dentistry Training Center in Clinical Division, and director of department of comprehensive dentistry. He also works as a member of Education Quality Management Committee and Continuing Education Management Committee in Peking University School and Hospital of Stomatology.CV SPEAKER
Dr. Feng Liu, Master’s Degree of Prosthodontics, Clinical Professor
He received his Master’s degree of prosthodontics from Peking University School of Stomatology in 1996, and has been working in the same university since then. He has dedicated to the clinical, education and research work in the field of prosthodontics and implantology. He is currently the deputy director of Peking University Hospital of Stomatology Clinical Division, director of Esthetic Dentistry Training Center in Clinical Division, and director of department of comprehensive dentistry. He also works as a member of Education Quality Management Committee and Continuing Education Management Committee in Peking University School and Hospital of Stomatology.
He is an important and active member in many major academic societies in China:
Standing committee member of Chinese Society of Esthetic Dentistry（CSED）;
Committee member of Chinese Prosthodontics Society（CPS）;
Former Chairman & Honorary President of Chinese Society of Digitized Dental Industry（CSDDI）;
Standing committee member of Oral Branch of Chinese Association of Plastics and Aesthetics（CAPA）;
Standing committee member of Chinese branch of The International Congress of Oral Implantologists （ICOI）；
Committee member of Chinese Society of Medical Aesthetics and Cosmetics.
He is also an active member and lecturer in different international associations:
Country chair for China, certified member, and member of expanded executive committee of European Society of Cosmetic Dentistry (ESCD);
Certified international trainer of International Society of Computerized Dentistry（ISCD）;
Member of European Association for Osseointegration (EAO)；
Member of American Association of Cosmetic Dentistry（AACD）;
Member of Japanese Association of Esthetic Dentistry（JAED）.
Dr. Feng Liu is currently an editorial board member and reviewer for International Journal of Prosthodontics, Chinese Journal of Stomatology, Chinese Journal of Prosthodontics.
Dr. Feng Liu majors on esthetic prosthodontics, dental implantology, CAD/CAM restorative dentistry, dental chromatology, clinical dental photography, et al. He has published 16 books as chief editor in the field of esthetic dentistry. He dedicated himself into continuing education about esthetic dentistry in China since 2005. He held more than ten phases of national continuing educational program in China. He has given more than 500 lectures about esthetic dentistry in China and worldwide, of which the direct audience were over 100000.
Published books as chief editor：
“Digital Dental Photography（1st edit）” 2006 (chief editor)
“Restoration Practice of Dental Esthetics” 2007 (chief editor)
“Esthetic, Start from Teeth” 2008(chief editor)
“Cosmetic Dentistry”2010 (chief editor)
“Digital Dental Photography（2ed edit）” 2011 (chief editor, the English version will be available by Springer in 2019)
“Fiber Post Restoration” 2012(chief editor)
“Tooth Preparation in Esthetic Prosthodontics” 2013(chief editor)
“Precise Dental Impression Technology” 2013(chief editor)
“Textbook for Cosmetic Dental Clinician in Beijing” 2014 (chief editor)
“Dental Guide for patients” 2014(chief editor)
“Case Omnibus of Chinese Esthetic Dentistry 2015” 2015 (chief editor)
“Concise Manual of Dental Photography” 2016 (chief editor)
“Digital Dental Photography- From Photography to DSD” 2017(chief editor，the English version will be available by Springer in 2019)
“Veneer- From Standard to Minimally & No Perpartion” 2017(chief editor, the English version will be available by Quintessence in 2019)
“Chairside CAM/CAD Restoration Practical – from Beginner to Master “2017(chief editor)
“The Clinical Application of Facebow and Articulator” 2018 (chief editor)
He also published the Chinese version of 3 international books as the master translator, including Fundamentals of Color: Shade Matching and Communication in Esthetic Dentistry,2008; Aesthetic Dental Strategies 2016; Comprehensive Cosmetic Dentistry 2017
International lectures he has given
2009, Seoul, Korea. Asian Conference on prosthodontics (ACP), using emergence profile modified gingival contour to achieve a perfect Implant restoration esthetic effect
2014, Tokyo, Japan. The annual meeting of the Japanese Society for Esthetic Dentistry（JAED），No prep veneer achieve Comfortable Cosmetic Dentistry Concept
2015, Cologne，Germany. IDS. Master training course of minimally invasive esthetic dentistry，Dental Photography
2015, Hamburg，Germany. Master training course of minimally invasive esthetic dentistry，Clinical essentials of no prep veneer
2015, Washington, USA. The annual meeting of American Dental Association（ADA），Clinical essentials of no prep veneer
2016，Krakow, Poland. The annual meeting European Society for Cosmetic Dentistry（ESCD），Create the perfect smile in extreme adverse circumstances
2017, Bucharest, Romania. The winter meeting European Society for Cosmetic Dentistry（ESCD），Create the perfect smile in extreme adverse circumstances
2017， Zagreb，Croatia. The annual meeting European Society for Cosmetic Dentistry（ESCD），Nature and beyond nature – different therapeutic strategies for achieving perfect therapeutic effects
2017， Vienna，Austria. Vienna Medical University School of Dentistry ，Nature and beyond nature – different therapeutic strategies for achieving perfect therapeutic effects
2018，Lindau，Germany. Annual meeting of the German Society for cosmetic dentistry (DGKZ)，Nature and beyond nature – different therapeutic strategies for achieving perfect therapeutic effects
2018, Lisbon, Portugal. The annual meeting European Society for Cosmetic Dentistry（ESCD）, To establish or to maintain? Strategies for pink esthetics in implants
2018, Thessaloniki, Greece，14th international congress of the Hellenic Academy of Esthetic Dentistry (HAED)，Nature and beyond nature – different therapeutic strategies for achieving perfect therapeutic effects
2019, Szeged, Hungary. Perspectives in Perio-Implantology and Comperhensive Dentistry. Digitally Guided Precise Implantation in the Aesthetic Zone.
2019, Belgrade，Serbia. Annual meeting of the Serbia Society for cosmetic dentistry. Digitally Guided Precise Implantation in the Aesthetic Zone.
2019, Budapest, Hungary. Annual meeting of Dental World. Digitally Guided Precise Implantation in the Aesthetic Zone.
Do we have to prepare a shoulder?
– from BOPT to vertical preparation, from implants to natural abutments
Preparing for a shoulder type finish line was strongly recommended for fixed restorations on natural abutments in conventional concepts. The “shoulder” was considered essential in every step during the prosthodontic treatment, such as tooth preparation, impression, and bonding procedure. In the preparation phase, clinicians were used to pay great attention developing the shoulder. Especially in the esthetic area, the “shoulder” seemed to be mandatory.
The rapidly developing techniques and materials nowadays are making us re-evaluating the necessity of the “shoulder”. To make the proper assessment, we should be aware of the features of the shoulder type finish line. The “shoulder” was there to assure the sufficient thickness on the margin of the restorations. With the sufficient thickness, we could consider the strength and esthetic demands on the margin area fulfilled. In the early ages of esthetic prosthodontics when the metal ceramic materials were broadly used, the “shoulder” was the rational choice. Even in the early times of the all ceramic materials, the “shoulder” was still mandatory due to the limited mechanical performance of the material.
Biologically oriented preparation technique (BOPT) broke this conventional concept. In certain cases, shoulderless preparation with the right provisional restorations offered a possibility to achieve supreme outcome in terms of both periodontal health and esthetics. The shoulderless preparation offered a more adaptable finish area. With a pronounced huge emergence profile, the margin of the restorations demonstrated sufficient thickness and a more adaptable level of margin.
In my personal experience, I have been making efforts to put some of the concept of implant supported supra-structures into the restoration of natural abutments. And the first time I learned about BOPT concept from Dr. Bazzoli, I found myself sharing the idea with surprisingly great similarity to BOPT concept.
With possession of all ceramic materials with greatly improved mechanical and esthetic properties, could the shoulder type preparation become an optional choice today? Shoulderless/vertical preparation with the use of appropriate material, it is feasible to achieve predictable and satisfying functional and esthetic performance for the prosthodontic treatments via a minimally invasive pathway.