To assess the influence of liquid attached on tooth surfaces accuracy (trueness and precision) intraoral scanners effectiveness drying method (using compression air) to exclude scanning results.A mandibular jaw model was scanned using an industrial computed tomography scanner obtain a reference model. A platform designed simulate three specific surface states (dry, wet, blow-dry). Two kinds liquids (ultra-pure water artificial saliva) were used for test. (Trios 3 Primescan) scan 10 times...

CD47 plays a variety of roles in intercellular signaling. Herein, we focused on the clinicopathologic significance expression human breast cancer. Our data suggest that correlation between and signal regulatory protein α (SIRPA) may play key role progression cancer.Quantitative real-time PCR was used to evaluate mRNA SIRPA bone marrow peripheral blood from 738 cases cancer.In patients with high levels marrow, survival significantly poorer compared low [disease-free (DFS), P = 0.0035; overall...

Abstract Purpose This study evaluated changes in the horizontal and vertical dimensions of buccal alveolar bone soft tissue over a 1‐year period following implant prosthesis. Materials Methods Thirty‐three participants with no history guided regeneration or augmentation underwent dental placement different types connections. The were immediately at 1 year after prosthesis from reconstructions cross‐sectional cone‐beam computed tomography images. Results loss around implants conical...

When using short implants, fracture of the implant body and bone resorption are a concern because stress concentrates on around implant. The purpose this research is to investigate differences in distribution between tissue level (TL) (BL) designs, commercially pure titanium (cpTi) newer titanium-zirconium (TiZr) alloy implants.Models TL BL implants were prepared for three-dimensional finite element analysis. produced 10 mm, 8 6 mm lengths, was also 4-mm length. A static load 100 N inclined...

Abstract In this study, we investigate a system of gas production from methane hydrate layers involving hot water injection using dual horizontal wells. Physical and numerical models simulating the process within chamber are proposed. Experiments with scaled two-dimensional physical an imitated layer (NaHCO3 ice formation) were performed to fluid flow characteristics performance. The thermal simulator was used simulate experimental growth field production. Numerical simulations for processes...

High-pressure small-angle neutron scattering (HP-SANS) studies were conducted to investigate nanostructures and interfacial properties of water-in-supercritical CO2 (W/CO2) microemulsions with double-fluorocarbon-tail anionic surfactants, having different fluorocarbon chain lengths linking groups (glutarate or succinate). At constant pressure temperature, the microemulsion aqueous cores found swell an increase in water-to-surfactant ratio, W0, until their solubilizing capacities reached....

Hybrid surfactants containing both fluorocarbon (FC) and hydrocarbon (HC) chains have recently been shown to solubilize water form elongated reversed micelles in supercritical CO2. To clarify the most effective FC HC chain lengths, aggregation behavior interfacial properties of hybrid FCm-HCn (FC length m/HC n = 4/2, 4/4, 6/2, 6/4, 6/5, 6/6, 6/8) were examined W/CO2 mixtures as functions pressure, temperature, water-to-surfactant molar ratio (W0). The solubilizing power for microemulsions...

In dental implant treatment, the placement position of body is important. The hypothesis that there are factors have a greater impact than been studied so far.The deviation between planned and actually placed implants was measured three-dimensionally by modified treatment evaluation method in 110 patients who underwent with guided surgery for partial edentulism. Ten seemed to affect errors were selected: type tooth, edentulism, distance from remaining teeth, implant, length, number implants,...

This paper analyzes the effects of parasitic inductances over conversion efficiency DC-DC converters by using Spice simulator. It was found that self-turn-on low side MOSFET is triggered large body diode reverse recovery current. A new multi chip module (MCM) has been developed in order to suppress LS MOSFETs and reduce inductances. The MCM also unique upper surface cooling feature. MCMs successfully improve with reduced recovery. Conversion can be further improved reducing gate resistance...

The present paper proposes a new ultra low on-resistance trench MOSFET. proposed device is characterized by the narrow high resistance n-epi layer between two gates and thin n-drift layer, which lies bottom n+ substrate. trenches always depleted because of built-in potential p+ gate poly, resulting in normally-off characteristics without p-base. enables use oxide. optimum doping concentration thickness chosen so that minimized. MOSFET experimentally achieved 33(V) drain-source blocking...

Water-in-supercritical CO2 microemulsions formed using the hybrid F–H surfactant sodium 1-oxo-1-[4-(perfluorohexyl)phenyl]hexane-2-sulfonate, FC6-HC4, have recently been shown to highest water-solubilizing power ever reported. FC6-HC4 demonstrated ability outperform not only other surfactants but also FCm-HCn analogues containing different fluorocarbon and hydrocarbon chain lengths (Sagisaka, M. et al. Langmuir 2015, 31, 7479–7487). With aim of clarifying key structural features this...

Abstract Background Immediate implant placement with simultaneous contour augmentation such as guided bone regeneration (GBR) or connective tissue grafting (CTG) has been widely performed. However, few prospective studies have evaluated both peri-implant and soft changes between the preoperative postoperative periods. The purpose of this study is to quantify horizontal dimensional facial following immediate augmentation. Material methods Twenty patients who underwent in anterior maxilla...

The attainment of a good aesthetic outcome in dental implant treatment requires inter-implant papilla reconstruction, which is very difficult to perform. Maintenance the bone essential for maintenance papilla. aim this study was investigate mechanical influences implant–abutment connection type and distance on by using three-dimensional finite element analysis. Three computer-aided design models two-piece implants were designed: external (EC), internal (IC), conical (CC). In each model, two...

Abstract Objectives The aim of this study was to devise an optical impression method that could make impressions dental implants accurately and rapidly. Materials methods Four paper markers (4 × 3 mm, 8 6 16 12 24 18 mm) one titanium marker (8 were prepared determine the measuring accuracy three‐dimensional tracker. For a proposed conventional taking method, we compared reproduction accuracies positions orientations times obtain impressions. Finally, fabricated computer‐aided designing ( CAD...

We proposed a new MOSBD, which integrates MOSFET and Schottky barrier diode (SBD) in single chip. The features of the device are that SBD fabricated on fine mesa less than 0.2mum, surrounded by trenches optimally distributed inside high density UMOS. show layout cells is effective to reduce reverse recovery charge (Qrr), output (Q <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">OSS(SBD)</sub> ) forward voltage drop (Vf...

Abstract A gas production system from methane hydrate (MH) sediment layers by combination method with hot water injection and bottom hole pressure control at well using radial horizontal wells has been proposed. Firstly, characteristics the depressurization have evaluated numerical simulations of cylindrical homogeneous MH layer model. The cumulative amount or recovery ratio were limited reduction equilibrium pressure, because must be suppressed to keep mechanical stability under sea bottom....

In the treatment of anterior implants, few studies have quantitatively evaluated effects connective tissue grafts on labial bone resorption and soft recession.To evaluate influence grafting (CTG) peri-implant morphology by measuring change over time surrounding implant in esthetic zone.Twenty-six patients who received implants with platform shifting region were included this follow-up study. Patients classified as those CTG [CTG (+) group] did not (-) group]. The vertical horizontal...

Purpose: This study investigated the relationship between peri-implant tissue health and presence of keratinized mucosa (≥ 2 mm) using multivariate analysis. Methods: A total 334 dental implants placed in 111 partially edentulous patients (34 males, 77 females) restored with fixed prostheses were included this study. The recalled 12–146 months after completion prosthodontic treatment. Clinical parameters modified plaque index (mPI), bleeding (mBI), probing pocket depth (PPD), radiographic...

Abstract A gas production system by injecting hot water into a methane hydrate layers with lower aquifer under the sea bottom has been studied using horizontal wells in radial arrangements. In order to overcome extremely low permeability and large dissociation heat of MH layer, forming dissociated chamber high communication proposed evaluated physical numerical models. The simulations were successfully matched experiments model. Moreover, injection field sediment dual 500 m length carried...