Microbiology of Peri Implant Infections
It is important to understand the microbiological aspects of peri-implant disease in order to proffer appropriate treatment.

CT-generated Surgical Guides and Flapless Surgery
Current Issues Forum provides the opportunity for invited individuals with expertise and experience to express their opinions on selected current topics of interest in the field of oral and maxillofacial implants.

Bone Grafting of Previously Used Symphysial Donor Sites for Onlay of Newly Formed Bone and Reharvesting Potential Symphysis Revisited:Clinical and Histologic Evaluation
Placement of an endosseous implant requires sufficient bone volume for complete bone coverage. The use of intraoral block bone grafts from intraoral sources has increased over the years. Possible sources for autogenic bone are the calvarium ,tibia,and the iliac crest(frequently used for major jaw reconstruction).However,these sources are not always recommended because of their morbidity,altered ambulation,and the need for hospitalization,as well as significant resorption associated with corticocancellous block grafts from endochondral donor sites.

The "Dual-Zone" Approach in Immediate Implant Placement
Improvements in implant designs have helped advance successful immediate anterior implant placement into fresh extraction sockets. Clinical techniques described have enabled practitioners to achieve predictable esthetic success using a method that limits the amount of buccal contour change of the extraction site ridge and potentially enhances the thickness of the peri-implant soft tissues coronal to the implant-abutment interface. This approach involves atraumatic tooth removal without flap elevation, and placing a bone graft into the residual gap around an immediate fresh-socket anterior implant with a screw-retained provisional restoration acting as a prosthetic socket seal device. This protocol allows for efficient management of the patient and an attempt to maintain all original contours of the extraction site. Multiple case and retrospective case studies will be cited to support this concept.

Full Arch Immediate Loading Using Pterygoid Implants - Part 1 of 2
Non-grafting alternatives for the rehabilitation of the Atrophic Maxilla is a growing arena in our implant patient population. The Intermaxillary Surgical Protocol for Zygomatic Implants and its modification to Extramaxillary techniques has been a huge advantage in the treatment of these advanced maxillary atrophy patient cases. Anatomical and X-Ray interpretation connected with the placement of Zygomatic Implants will be reviewed in great detail. Patient selection and Treatment Planning as well as Pre-Operation Patient’s Medical Condition Assessment etc. is the foundational knowledge required for treatment of these individuals. The surgical procedure and prosthetic rehabilitation aspects as well as impressions and the laboratory work will also be further highlighted.

Alveolar Ridge Regenerative Strategies: Clinical Application of Autogenous, Allogeneic and Xenograft Substrates with Bioactive Modifiers and Mesh
This clinical based presentation will feature a CBCT based sequential diagnostic protocol including the latest hard and soft tissue grafting techniques for single tooth to full arch implant reconstruction. The use of autogenous, allograft, and xenograft substrates along with resorbable and nonresorbable mesh will be covered. Foundational tissue engineering principles will be covered and will include the use of PRGF, rhPDGF, and rhBMP-2/ACS.

Total Rehabilitation of the Edentulous Patient with the All-on-4® treatment concept
A fixed implant supported prosthesis is the ideal treatment option for the edentulous patient and those facing the imminent loss of their remaining dentition. Through innovation, along with continuous clinical and scientific research, it has become possible to treat virtually every edentulous case with a highly functional and esthetic fixed solution. The oral rehabilitation of these patients has two stages: surgical and prosthetic.

Modern Approach of Full Arch Immediate Loading
In Immediate loading, the survival rate is often based on the follow-up of the osseointegration, but without aesthetic appreciation... The main goal is to achieve osseointegration and aesthetics in order to get long term stability. For this goal we need to obtain both, bone formation and gum thickness, as any failure in one of the 2 factors, will induce the loss of the second factor. This presentation will show my statistics about more than 1100 full arch loaded immediately since 14 years (> 7700 implants)

“The Full Arch Patient”; A Fully Digital Affair
Guided Surgery (GS) is a concept where you are guided by the rehabilitation needs of your patient to perform the implant surgery procedure based on all the info that we process via planning software that are loaded with digital files coming from intra-oral scanning (IOS) and cone beam computed tomography (CBCT). After planning the case, we print a surgical guide or stent to perform the surgery, this technique allows us to do it flap or flapless in a complete secure environment, quicker and more precise if we compare to "freehand" surgery. However, we have to be careful because not all the systems are the same; those who use scoops as reductors are less precise than the "scoopless", no matter which system we use we have to be clear to understand that all the classic concepts of osseointegration are not erased by guided surgery, especially bone physiology.