Clinical and microbiologic investigation of an expedited peri-implantitis dog model: an animal study.

Background: Animal studies are pivotal in allowing experimentation to identify efficacious treatment protocols for resolution of peri-implantitis. The purpose of this investigation was to characterize an expedited dog peri-implantitis model clinically, radiographically, and microbiologically.

Methods: Eight hound dogs underwent extractions (week 0) and implant (3.

Nasal Deviation in Patients With Asymmetric Mandibular Prognathism.

Purpose: This study was aimed to evaluate the nasal deviation in patients with asymmetric mandibular prognathism.

Materials And Methods: Thirty-five patients with skeletal class III malocclusion were included in the study. Significant mandibular asymmetry of >4 mm menton deviation in three-dimensional (3D) reformatted cone beam computed tomography images was defined as asymmetry group (n = 20).

Characterization and antimicrobial efficacy of Portland cement impregnated with silver nanoparticles.

Purpose: This study investigated the effects of silver nanoparticle (SN) loading into hydraulic calcium silicate-based Portland cement on its mechanical, antibacterial behavior and biocompatibility as a novel dental bone substitute.

Materials And Methods: Chemically reduced colloidal SN were combined with Portland cement (PC) by the concentrations of 0 (control), 1.0, 3.

Physical and Antibacterial Properties of Gold-Poly(ethyl methacrylate) Nanocomposites Prepared by In-Situ Polymerization.

In this paper, the physical and antimicrobial properties of gold-poly(ethyl methacrylate) nanocomposites (Au-PEMA) are evaluated. Characterization of gold nanoparticles was carried out based on UV-Vis spectroscopy and transmission electron microscopy (TEM). The specimens were characterized by attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), thermal gravimetric analysis (TGA), differential scanning calorimetry (DSC), and field emission scanning electron microscope (FE-SEM).

Characterization and bacterial anti-adherent effect on modified PMMA denture acrylic resin containing platinum nanoparticles.

Purpose: This study characterized the synthesis of a modified PMMA (Polymethyl methacrylate) denture acrylic loading platinum nanoparticles (PtN) and assessed its bacterial inhibitory efficacy to produce novel antimicrobial denture base material.

Materials And Methods: Polymerized PMMA denture acrylic disc (20 mm × 2 mm) specimens containing 0 (control), 10, 50, 100 and 200 mg/L of PtN were fabricated respectively. The obtained platinum-PMMA nanocomposite (PtNC) was characterized by TEM (transmission electron microscopy), SEM/EDX (scanning electron microscope/energy dispersive X-ray spectroscopy), thermogravimetric and atomic absorption spectrophotometer analysis.

Treatment of dental implant-related maxillary sinusitis with functional endoscopic sinus surgery in combination with an intra-oral approach.

The present report describes the case of a patient who underwent maxillary sinusitis right after dental implant installation with sinus lifting. Computed tomography scan revealed a dental implant (#16) was protruded inside the right maxillary sinus and confirmed the obstruction of ostium. A symptom remission was gained with the dual approaches combined by functional endoscopic sinus surgery and an intra-oral approach.

Antifungal and physical characteristics of modified denture base acrylic incorporated with silver nanoparticles.

Objective: This study evaluated the antifungal and physical characteristics of denture base acrylic combined with silver nanoparticles.

Materials And Methods: Polymerized denture acrylic disc specimens containing 0 (control), 1.0, 5.

Anti-cancer properties of glucosamine-hydrochloride in YD-8 human oral cancer cells: Induction of the caspase-dependent apoptosis and down-regulation of HIF-1α.

Evidence suggests anti-tumor activities of glucosamine-hydrochloride (GS-HCl). In the present study, we investigated anti-proliferative, growth suppressive and/or pro-apoptotic effects of GS-HCl on YD-8 human oral squamous cell carcinoma (OSCC) cells. Fundamentally, treatment with GS-HCl strongly inhibited proliferation and induced apoptosis in YD-8 cells, as determined by MTS and DNA fragmentation analyses.

Arthroscopic management of stiff elbow.

Elbow stiffness is a common problem encountered by orthopedic surgeons. Various management options have been described in the literature, including conservative measures and open and arthroscopic surgery. Arthroscopic management of stiff elbow remains controversial.

In vitro antimicrobial effect of the tissue conditioner containing silver nanoparticles.

Purpose: The aim of this study was to identify in vitro antimicrobial activity of the tissue conditioner containing silver nanoparticles on microbial strains, Staphylococcus aureus, Streptococcus mutans and Candida albicans.

Materials And Methods: Experimental disc samples (20.0×3.

Manganese-mediated up-regulation of HIF-1alpha protein in Hep2 human laryngeal epithelial cells via activation of the family of MAPKs.

High exposure of manganese is believed to be a risk factor for respiratory diseases. Evidence suggests that overexpression of HIF-1alpha transcription factor is linked to pulmonary inflammation and vascular change. In this study, we investigated the effect of manganese-chloride (manganese) on expression and activity of HIF-1alpha in various human airway cells, including Hep2 (laryngeal), H292 (bronchial), and A549 (lung).

Aspirin induces apoptosis in YD-8 human oral squamous carcinoma cells through activation of caspases, down-regulation of Mcl-1, and inactivation of ERK-1/2 and AKT.

NSAIDs and COX-2 inhibitors show anti-cancer activities in many cancer cells. In this study, we investigated the effects of NSAIDs (aspirin or indomethacin) and COX-2 inhibitor (NS-398) on growth of YD-8 human oral squamous carcinoma cells. Interestingly, among drugs tested, aspirin showed strongest inhibitory effects on viability and survival of YD-8 cells.

Differential down-regulation of COX-2 and MMP-13 in human skin fibroblasts by glucosamine-hydrochloride.

Background: Evidence suggests anti-inflammatory effects of glucosamine (GS) on inflammatory diseases. COX-2 is an enzyme to produce prostaglandins. MMPs are the family of matrix metalloproteinases degradable of ECM.

Effects of dentin bonding agents on bonding durability of a flowable composite to dentin.

The present study evaluated the bonding durability of a flowable composite on bovine dentin using dentin bonding agents with different numbers of application steps: Scotchbond Multipurpose (three steps), Prime & Bond NT and One-Step (two steps), AQ Bond and Prompt L-Pop (one step). Shear bond strength tests were performed, and resin-dentin interface and fracture mode were observed. There were no significant differences in bond strength among the specimens within 37 degrees C storage group (p > 0.