"The Great Debate" on Tooth Replacement
Bucco-palatal collapse of the post-extraction ridge is a significant challenge in restorative and implant dentistry. A variety of different approaches as well as ridge preservation techniques using tissue and augmentative materials have been proposed in this session with some of the leading clinical research teams in the field. A conceptual debate format discussing the virtues of "Early Placement" at 6 weeks (Buser & Belser Team) vs. "Immediate Placement with Dual Zone Protocols" at time of extraction (Chu & Tarnow Team) vs. "Partial Extraction Therapy" PET (Gluckman & Salama) also at the time of extraction is led by Professor Homa Zadeh of USC. This interactive session explores the current status and poses questions for the future use and indications of each proposed therapy.

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.

Partial Extraction Therapy (PET) The Final Frontier
Buccopalatal collapse of the postextraction ridge is a significant challenge in restorative and implant dentistry. A variety of different approaches as well as ridge preservation techniques using tissue and augmentative materials have been proposed in the literature. A slightly different approach, "PET" is to use the tooth itself by purposely maintaining all or a portion of the root in the remaining socket. Root submergence has been reported in the literature for more than 4 decades, and it has been demonstrated that the submerged tooth root retains the periodontal tissues and preserves the bone in pontic sites or below dentures to retain the ridge. The socket-shield technique entails preparing a tooth root section to remain behind on the labial aspect simultaneous to immediate implant placement and has demonstrated histologic and clinical results that are highly promising to esthetic implant treatment.

Current Concepts in Bioactivity and Regeneration
In this lecture, tips on how to deal with the different types of extraction socket, mostly infected, will be presented. The use of plasma rich in growth factors and the Endoret® (PRGF®) fibrin membrane is a key factor to enhance socket regeneration, post-operative recovery and minimize/treat complications.

Fibrin-Guided Bone Regeneration: Guidelines of a Simple, Predictable, & Low Risk Technique
This lecture is focused on an effective regenerative approach, but at low knowledge. The goal is to provide a new skill in favor of well-established techniques. The Fibrin Sealant (FS) is an additional clot of human origin. It has adhesive, sealant and inductive action stimulating hard and soft-tissue regeneration. The FS, mixed with bone chips and biomaterials, allows a better handling of the graft that, becoming plastic and moldable, adapts perfectly to bony defects without dispersion of granules. It’s effective also on wound protection achieving a faster healing of soft-tissue. This approach is excellent in the socket preservation and in the peri-implant regeneration on "closed" sites where the implants are inside the defects.

Surgical & Restorative Management in the Aesthetic Zone
Very often anterior tissue and tooth deficiencies require a multi-disciplinary approach to correct. This presentation reviews several classic techniques in managing these challenging cases including; Orthodontic extrusion, soft tissue and hard tissue augmentation and restorative selection. A quantifiable strategy and case selection is presented as well as several options that should be considered.

Long Term Follow-Up of Dental Implants Placed in Autologous Onlay Bone Graft
The aim of this study was to evaluate the efficacy of autologous intraoral onlay bone grafting (OBG) in correlation with long-term survival rates of dental implants placed in the augmented bone. A retrospective study was conducted on 214 patients who received a total of 633 dental implants placed in 224 autologous intraoral block OBG augmentations, combined with Bio-Oss – mixed with platelet-rich plasma (PRP) and covered by platelet-poor plasma (PPP) – as scaffold, with a follow-up time up to 137 months. We suggest that augmentation of severely atrophied jaw bone through the placement of horizontal and/or vertical intraoral OBGs in combination with Bio-Oss saturated with PRP and covered by PPP should be considered a reliable, safe, and very effective surgical technique for obtaining high bone graft survival rate and high long-term implant survival rate.

Bone Grafting Assessment: Focus on the Anterior and Posterior Maxilla Utilizing Advanced 3-D Imaging Technologies
As dental implant reconstruction has evolved into a mainstream alternative to replace missing teeth, bone grafting techniques have also evolved as an ancillary procedure for site development, sinus augmentation, and guided bone regeneration.

Ridge Preservation and Augmentation Using Regenerative Materials
Courtesy of AEGIS Communications