In vitro and in vivo evaluations of nanocrystalline Zn-doped carbonated hydroxyapatite/alginate microspheres: zinc and calcium bioavailability and bone regeneration.

Zinc-doped hydroxyapatite has been proposed as a graft biomaterial for bone regeneration. However, the effect of zinc on osteoconductivity is still controversial, since the release and resorption of calcium, phosphorus, and zinc in graft-implanted defects have rarely been studied. Microspheres containing alginate and either non-doped carbonated hydroxyapatite (cHA) or nanocrystalline 3.

Hydrophilic surface of Ti6Al4V-ELI alloy improves the early bone apposition of sheep tibia.

Objective: The aim of this preclinical study was to compare histologically and histomorphometrically both sandblasted/acid-etched implant surfaces with or without maintained in an isotonic solution of 0.9% sodium chloride in early stages of osseointegration.

Material And Methods: Both implant surfaces were composed of a titanium/aluminum/vanadium alloy (Ti6Al4V-ELI), but they had different surface chemistries: sandblasted/acid-etched titanium surface (FN) or sandblasted/acid-etched surface maintained in an isotonic solution of 0.

Esthetic management of double tooth associated with talon cusp using a laminate veneer.

Double tooth and talon cusp are tooth shape anomalies with rare co-occurrences in a single tooth. Double tooth is a developmental anomaly that leads to the eruption of fused teeth and may contribute to compromised esthetics, pain, caries, and tooth crowding. Talon cusp is a rare developmental extra cusp-like projection on the cingulum area that may cause functional and esthetic problems.

Histopathologic changes in dental pulp of teeth with chronic periodontitis.

Objective: The aim of this study was to evaluate the histopathologic changes in dental pulp of teeth with chronic advanced periodontitis.

Methods: In 22 patients, 30 teeth were selected for inclusion. Patients had received no periodontal treatment.