Root Submergence Technique, A Case Series with Follow-Up up to Seven Years
In the era of aesthetic dentistry, the goal is not only to provide a function to our patients but also to preserve the hard and soft tissue anatomy, to have a pleasing prosthesis. Obtaining natural aesthetics is simpler in single implant cases, however, in multiple implant prosthesis achieving natural dentition becomes a challenge. The root submergence technique (RST) is one such procedure that provides maximum preservation of the surrounding alveolar bone and soft tissue. This case series discusses the effect of a root submergence technique on preserving the periodontal tissue at the pontic site of fixed dental prostheses in the maxillary arch. The results of this clinical case series indicate that a root submergence technique can be successfully applied in the pontic site development with fixed dental prostheses, especially in the maxillary anterior aesthetic zone.

Human Histologic Analysis of Implant Osseointegration in a Healed Site Grafted with Nondemineralized Autologous Tooth-Derived Graft Material
Human autologous tooth-derived grafts (ATDGs) were recently introduced as a source of bone substitute biomaterial. Using dentin autografts in humans was first reported in 2003. In that first report, demineralized dentin matrix granules were used as a bone substitute biomaterial for sinus augmentation. Since then, a variety of TDGs have been introduced clinically, including block or particulate forms of tooth structures with various levels of mineralization, as shown in Fig 1. In the present article, “TDG” is used as an all-encompassing term to better capture the variability of tooth-derived grafts that can contain the total root structure, dentin only, dentin and cementum, or even enamel.

Teeth First: A novel surgical treatment concept for the edentulous, acquired Class III, severely atrophied maxilla
Extreme atrophy of the edentulous maxilla still represents a challenge as far as prosthetic rehabilitation with implant-supported fixed (screw-type) prostheses is concerned. This is due not only to insufficient bone volume for implant placement but also to unfavorable three-dimensional inter-maxillary relationships that is caused by the pattern of bone resorption in the maxilla. In the scientific literature, there are few clinical studies describing the use of the Le Fort I osteotomy, as a 1 or 2 stage procedure, for the reconstruction of a three dimensionally severely atrophied maxilla, prior to implant placement.

Bone Augmentation in Infected Sites with Bovine-Derived Xenograft Mixed with Platelet-Rich Plasma Covered by Platelet-Poor Plasma
The aim of this study was to assess the success of bone regeneration in infected and non-infected human dental defects, with respect to biological properties of bone remodeling. Histomorphometric analysis of bone biopsies was used to evaluate new bone formation, soft tissue, and residual biomaterial in infected and noninfected sites. In all samples, the biomaterial particles were surrounded by newly generated bone. Among factors that were analyzed, gender, medical state, and smoking had no significant effect on bone regeneration. Variables including tooth location, platelet concentrate, and protective membrane addition were also analyzed for their effects on bone regeneration.

Updating Classifications of Ceramic Dental Materials
The indications for and composition of today’s dental ceramic materials serve as the basis for determining the appropriate class of ceramics to use for a given case. By understanding the classifications, composition, and characteristics of the latest all-ceramic materials, which are presented in this article in order of most to least conservative, dentists and laboratory technicians can best determine the ideal material for a given treatment.