Graphene/hydroxyapatite coating deposit on titanium alloys for implant application.

Titanium (Ti) implants are widely used in medicine. Meanwhile, surface modification of Ti can strengthen the osseointegration of implants. In this study, we modified Ti implant surfaces, which was coated with GO, HA, HA-2wt%GO and HA-5wt%GO via electrophoresis deposition, to investigate their mechanisms and biological activity.

Borderline Developmental Dysplasia of the Hip: A Risk Factor Predicting the Development and Poor Prognosis after Core Decompression for Idiopathic Osteonecrosis of the Femoral Head.

Objective: It is unclear whether idiopathic osteonecrosis of the femoral head (ONFH) is associated with borderline developmental dysplasia of the hip (BDDH). This study aimed to compare the incidence of BDDH between patients with idiopathic ONFH and matched control subjects and determine the influence of BDDH on poor prognosis after core decompression (CD).

Methods: We retrospectively examined 78 consecutive patients (111 hips) with idiopathic ONFH undergoing CD and 1:2 matched with 156 control subjects (222 hips).

A 3-Year Clinical Evaluation of Endodontically Treated Posterior Teeth Restored with Resin Nanoceramic Computer-Aided Design/Computer-Aided Manufacture (CAD/CAM)-Fabricated Partial Crowns.

BACKGROUND We aimed to investigate the clinical effects of resin nanoceramic (RNC) computer-aided design/computer-aided manufacture (CAD/CAM) partial crowns on posterior teeth after root canal treatment over a 3-year period. MATERIAL AND METHODS A total of 132 posterior teeth restored with CAD/CAM partial crowns were placed in 128 patients. The observation group (n=66) was restored with RNC restorations, while the control group received lithium disilicate-based glass ceramic (LDGC) CAD restorations.

[Distribution of WNT10A gene rs10177996 polymorphism between Han and Uygur populations in Xinjiang area].

Purpose: To explore the characteristics of distribution of WNT10A gene rs10177996 polymorphism between Han and Uygur populations in Xinjiang area.

Methods: A cross-sectional survey on 154 Han individuals in Urumqi area and 134 Uygur individuals in Kashgar area was performed. Buccal epithelial cells were harvested using Cotton swab scraping, and DNA was extracted by special kit.

Rapid prototyping for tissue-engineered bone scaffold by 3D printing and biocompatibility study.

The prototyping of tissue-engineered bone scaffold (calcined goat spongy bone-biphasic ceramic composite/PVA gel) by 3D printing was performed, and the biocompatibility of the fabricated bone scaffold was studied. Pre-designed STL file was imported into the GXYZ303010-XYLE 3D printing system, and the tissue-engineered bone scaffold was fabricated by 3D printing using gel extrusion. Rabbit bone marrow stromal cells (BMSCs) were cultured in vitro and then inoculated to the sterilized bone scaffold obtained by 3D printing.

Basic fibroblast growth factor lentiviral vector-transfected sheep bone marrow mesenchymal stem cells and non-specific osteogenic gene expression.

In the present study, sheep bone marrow stem cells (BMSCs) were transfected with basic fibroblast growth factor (bFGF)-lentivirus in order to investigate the influence of bFGF on osteogenic gene expression. bFGF‑transfected BMSCs (experimental group) and non-transfected BMSCs (control group) were also transfected with a green fluorescent protein gene in order to measure the transfection efficiency of the (bFGF)-lentivirus using flow cytometry. Using quantitative polymerase chain reaction assays, the changes in expression from three genes (osteopontin, OPN; osteocalcin, OC; and collagen-I) in BMSCs from the experimental and control groups were measured.

[Distribution of subgingival flora after restoration of dentition defect with conical telescopic removable denture in patients with periodontitis].

Purpose: To assess the distribution of subgingival flora after restoration of dentition defect with conical telescopic removable denture in patients with periodontitis.

Methods: 36 spots of 18 patients were examined and recorded for periodontal depth (PD) and gingival index(GI). Samples from subgingival pocket were collected, cultured, evaluated and compared between abutment teeth group and nonabutment teeth group.