Biological Evaluation (In Vitro and In Vivo) of Bilayered Collagenous Coated (Nano Electrospun and Solid Wall) Chitosan Membrane for Periodontal Guided Bone Regeneration.

The application of barrier membranes in guided bone regeneration (GBR) has become a commonly used surgical technique in periodontal research. The objectives of this study were to evaluate the in vitro biocompatibility and osteogenic differentiation of mesenchymal stem cells (MSCs) on two different collagenous coatings (nano electrospun fibrous vs. solid wall) of bilayered collagen/chitosan membrane and their histological evaluation on bone regeneration in rabbit calvarial defects.

Factors associated with inappropriate chemical prophylaxis of thromboembolism in surgical patients.

Introduction: Despite various guidelines for venous thromboembolism (VTE) prevention, malpractice in prescribing thromboprophylaxis is common. In this study, factors associated with prescribing or not prescribing appropriate chemical thromboprophylaxis were assessed.

Materials And Methods: We enrolled high-risk patients for VTE (based on Caprini score) in the general surgery ward.

Peri-implant soft tissue management through use of cultured gingival graft: a case report.

Tissue-engineered gingival graft was used for regenerating facial gingiva around an implant at lower left first premolar area with insufficient attached gingiva. Engineered gingival graft was produced by mixing 250 ml bovine skin collagen with 250 ml nutritional medium containing human gingival fibroblasts (2×10(5)). 3 months post-surgery, there were gains in the attached gingiva compared to pre-surgery.

A clinical and histologic evaluation of gingival fibroblasts seeding on a chitosan-based scaffold and its effect on the width of keratinized gingiva in dogs.

Background: Finding biocompatible matrix materials capable of enhancing the procedures of gingival augmentation is a major concern in periodontal research. This has prompted the investigation of a safe grafting technique by means of synthetic or natural polymers. The objective of this study is to examine the effect of a gingival fibroblast cultured on a naturally derived (i.