224 participants attended the 2018 Ramfjord Symposium with presentations and workshops by some of the most renowned experts in periodontology worldwide. The Ramfjord Symposium is organised annually by the University of Michigan in the honour of Professor Sigurd Ramfjord,. He was Chair of the Department of Periodontics and Oral Medicine at the University of Michigan and has significantly contributed to advancing the field of periodontology.
The pre-symposium programme on Thursday, 14 June, consisted of five workshops in the morning, and presentations by alumni and friends of the University of Michigan Dental School, among them several members of the Osteology Expert Council, such as Gustavo Avila-Ortiz, Jia-Hui Fu, and Giulio Rasperini.
Video Workshop by Daniel Buser
One of the workshops in the morning was held by the Osteology Speaker, Daniel Buser. In this highly focussed four-hour workshop he presented GBR and bone augmentation surgical procedures with surgical video clips in various clinical situations, documenting the procedures step-by-step, including the decision criteria of when to use a simultaneous and when a staged approach.
Most important in implant surgery, he explained, is successful osseointegration in the right prosthetic position, so that the implant is completely embedded in bone, and that it is surrounded by healthy keratinised mucosa.
In the long term, Daniel Buser explained, it pays off to stick to evidence-based surgical protocols. In order to offer short healing and treatment periods, and to achieve long-term stability for implants, bone augmentation procedures are needed in the majority of cases. He recommended bone augmentation with GBR using a two-layer composite graft, with the goal contour augmentation. In the posterior maxilla, he said, sinus floor elevation is often needed to increase the vertical bone volume using a mixed composite graft. Composite grafts optimise the outcomes of bone augmentation procedures. Autogenous bone chips foster new bone formation, and thereby achieve a shorter healing period. Key factors are the growth factors in the bone chips. The mixture with deproteinised bovine bone material maintains the volume due to the slow substitution rate during remodelling.
Main symposium programme
The main programme on Friday, 15 June, was opened by William Giannobile, local host and Osteology Foundation Board Member, who introduced Daniel Buser, the Osteology Foundation speaker. His presentation focussed on digital technology in the field of implant surgery of partially edentulous patients, and he asked the question “how far are we in daily practice?”. He came to the conclusion that the digital transformation in implant dentistry is a reality. Computer-assisted implant surgery, CAIS, he explained, is fascinating and has the potential to really have a positive impact on implant dentistry. The correct 3D position will profit, and the frequency of flapless implant placement will continue to increase.
However, he explained further, CAIS will not compensate for a lack of surgical talent, proper education and clinical experience of the surgeon. Also in the future, the brain of the surgeon must always be in control of CAIS – especially in case of problems. The surgeon must always be suspicious at the beginning of the surgery, and check whether the implant positions and axes are accurate. He finished his lecture by stating that accuracy needs to be improved with proper in-vitro and clinical studies.
Further speakers in the programme included George Mandelaris, USA, Akira Aoki, Japan, Homa Zadeh (USA), as well as Giovanni Zucchelli, who spent the whole Saturday morning focussing on the “hot topic” of treatment and prevention of aesthetic failures around implants.
A short overview about the Osteology Foundation by Daniel Buser received considerable attention, as did the presentation of THE BOX by Hector Rios and Gustavo Avila-Ortiz, who were among the driving forces behind the development of the Osteology Foundation’s online platform. Many participants of the symposium came to the small stand of the Osteology Foundation later to learn more about it.
Research prizes for members of the Osteology Network
Very successful from the view of the Osteology Foundation were the research poster presentations. Two prizes went to researchers from the Osteology network: Jia-Hui Fu, Singapore, won the first prize in the category Clinical Research, and Young Dan Cho, Korea, currently Osteology Research Scholar at the University of Michigan, won the first prize in the category Basic Research.
Thank you to the local organisers from the University of Michigan. It was an excellent congress with great presentations.