by Massimo Simion, MD, DDS, Isabella Rocchietta, DDS, & Claudia Dellavia, DDS
A paper presenting two patients who underwent three-dimensional ridge augmentation using a xenograft in combination with recombinant human platelet-derived growth factor-BB (rhPDGF-BB). The report suggests that the use of rhPDGF-BB in combination with a deproteinized bovine graft may have the potential to regenerated large three-dimensional alveolar defects in humans.
The article renders very nice photo and radiographich images of the post-treatment ridge forms and demonstrates, at least on two patients with limited follow-up, that vertical ridge augmentation in the mandibular arch may be possible under these special conditions.
by Paul A. Schnitman, DDS, MSD
This article discusses a method for the predictable fabrication of fixed detachable maxillary reconstructions that abut and precisely follow the gingival contours — regardless of implant angulation or position. The technique reorders the traditional implant protocol and delays abutment selection until the definitive tooth position has been established. In this manner, final abutment selection and framework design become a single, integrated process
that results in improved aesthetics, reduced angulation difficulties, and elimination of the phonetic concerns traditionally associated with fixed maxillary prostheses.
by Georgios Tasoulis, D.M.D., Suellan Go Yao, D.M.D. and James Burke Fine, D.M.D.
This article is a fresh review of subantral grafting published in the February 2011 Compendium. The article summarizes nicely the various sinus lift techniques, the clinical situations in which to apply these techniques and the complications associated with them. A comparison of graft materials is briefly discussed as well as implant size as it relates to the success of various antral grafting techniques.
by Peter K. Moy, DMD and Baldwin W. Marchack, DDS, MBA, FAGD, FICD, FACD
A 60-year-old man presented with a 10-mm pocket on the distal aspect of his left mandibular molar. A nonsmoker, he had no positive medical history relevant to his dental treatment. Clinical examination along with radiographic evaluation confirmed that the root canal filling had failed, and the tooth had fractured. The patient elected for implant treatment, to be delivered in a staged approach, with immediate temporization.
by Michael Sesemann DDS and Bruce Kuhn, MD, DDS
A 27-year-old woman presented to the office with a chief complaint concerning the esthetics of the porcelain-fused-to-metal (PFM) crowns on her maxillary lateral incisors, which had been placed at different times in the early 1990s. The objective was to use contemporary materials and techniques to have them blend better with her natural dentition. In general, the patient’s periodontal health was excellent. A slight amount of inflammation of the gingival tissues was present around the PFM crowns.
by Robert M. Bentz, DMD, FACP
The patient was a 47-year-old building contractor with crowns on both his central maxillary incisors. He experienced a traumatic injury that fractured the left crown at the gum line. As he had no other facial lacerations, he presented for dental treatment immediately after the accident. His medical and dental histories were otherwise unremarkable. The patient chose to have the tooth extracted, followed by immediate implant placement and temporization.
by Gary Orentlicher, DMD and Matthew Teich, DDS.
The design and development of today’s dental implants has been an evolving process based on scientific research, clinician input, and manufacturers’ ingenuity. One new addition to the dental implant armamentarium, the NobelActive™ implant. was introduced worldwide by NobelBiocare® approximately 2 years ago. While many of the design features of the NobelActive implant are found individually in other dental implants, the implant’s combination of external and internal design characteristics provides for unique handling and applications in many difficult clinical situations. Although the NobelActive implant can be used in most all clinical situations, its design allows for high levels of initial stability even in situations with low density or compromised bone, making it a good implant choice for immediate extraction, immediate implant placement, and immediate load cases, as well as cases with less·than-ideal qualities and quantities of bone. In addition, the implant has the ability to be redirected if less-than·ideal implant placement occurs at the time of implant insertion, maximizing the potential prosthetic outcomes. Prosthetically, the implant has features designed to minimize crestal bone loss and maximize gingival architecture. while minimizing the prosthetic components and instrumentation. This article discusses the characteristics of the NobelActive implant in detail and employs case presentations to illustrate its clinical use.
by Stephen S. Wallace and Stuart J. Froum
Grafting of the posterior maxillary region has become one of the most common of all surgical procedures associated with the placement of implants in the posterior maxillary region. This article attempts to address the some of the variables associated with the success of this procedure as well as summarize its overall efficacy.
The survival rate of implants placed in sinuses augmented with the lateral window technique varied between 61.7% and 100% in this collection of studies with an average of 91.8%. The implant survival rates compared favorably to reported survival rates for implants placed in the non-grafted posterior maxilla. Rough surfaced implants have a higher survival rate than machine surfaced implants. Implant survival rate was higher when a membrane was placed over the lateral window.
This article poses a good overall summary of the current state of affairs as it relates to subantral augmentation for posterior implant reconstruction.