As the 3rd Generation Partnership Project (3GPP) is discussing integration of satellite networks into 5G New Radio (NR) and mega-constellation low-Earth orbit (LEO) satellites are being deployed, communication gaining momentum for technical economic success. Ultimate will be able to provide immense payoff networks, including global coverage extension 3-D mobility enhancement. This article begins with an overview current status nonterrestrial network (NTN) standardization state-of-the-art...

This study introduces a comprehensive approach to enhancing SiNx nanofilters for exosome isolation from bovine milk using the electrophoretic oscillation-assisted tangent-flow ultrafiltration (EPOTF) process. Reinforcing nanofilter with electro-spun poly(vinylidene fluoride) (PVDF) fibers significantly improved durability under high-pressure conditions, withstanding nearly 2.8 times greater pressures than nonreinforced nanofilters. The PVDF-fiber-coated achieved flow rate of over 70 mL...

ABSTRACT Aims Periodontal diseases pose significant challenges to oral health, making the regeneration of periodontal tissues a critical therapeutic goal. The goal is restore dental function by repairing damaged tissue and reconstructing healthy connective structure between teeth alveolar bone. This study aimed investigate effects selcopintide (SCPT) on differentiation ligament cells (PDLCs), cementoblasts, osteoblasts in vitro, as well using defect model dogs vivo. Methods expression marker...

To verify whether ridge preservation is effective in the reduction of dimensional loss and bone formation compared to spontaneous healing extraction sockets periodontally compromised teeth.Twenty-six subjects requiring tooth for stage III/IV periodontitis were randomly assigned one two interventions: alveolar using collagenated bovine mineral a resorbable collagen membrane (test, RP) or (control, SH). Six months later, postoperative cone-beam computed tomography (CBCT) was performed measure...

Abstract Aim This study investigated the adjunctive effect of polydeoxyribonucleotide (PDRN) on bone formation in alveolar ridge preservation (ARP) sockets. Materials and Methods Both mandibular second, third fourth premolars eight beagle dogs were randomly divided into ARP ARP/PDRN groups. Following tooth extraction, procedures conducted using collagenized alloplastic graft material bilayer collagen membrane soaked with normal saline (ARP group) or PDRN (ARP/PDRN for 10 min before...

Abstract Recently, double-root implants have been investigated using 3D-printed technology. Here, we damping capacity, microcomputed tomographic (micro-CT) and histological analyses of compared with single-root 3D printed implants. Single- were fabricated placed at both sides mandibular third fourth premolars in four beagle dogs. The capacity was measured, periapical X-rays taken every 2 weeks for 12 weeks. bone volume/tissue volume (BV/TV) mineral density (BMD) around the measured micro-CT....

Abstract Background This study compared the progression of experimental peri‐implantitis between alveolar ridge preservation (ARP) and spontaneous healing (SH) sites in infected (IT) noninfected tooth (NIT). Methods Bilateral mandibular third or fourth premolars six beagle dogs were randomly assigned to IT NIT groups. Before extraction, chronic dehiscence defects created at mesial root mid‐buccal area group. Four weeks later, roots extracted all groups.ARP procedure was conducted on one side...

Blind adaptive I/Q imbalance compensation has become more popular during the last decade due to its simplicity and need for no training data. In existing work, it been pointed out that a statistical property of signal, which is referred as properness condition, can be used blind compensation. this letter, equi-absolute variance condition well are propose two algorithms based on well-known LMS RLS adaptation algorithms. The performances proposed evaluated through simulations, shown provide...

This study aimed to evaluate the safety of ridge preservation/augmentation procedures when performed at compromised extraction sockets.Patients subject periodontally sockets Seoul National University Dental Hospital (SNUDH) were evaluated in a chart review. Tooth extractions due acute infection not included our as chronically formed lesions are only that can be detected from radiographic images. If inflammatory symptoms persisted following and antimicrobial anti-inflammatory therapy, patient...

A stability-measuring device that utilizes damping capacity analysis (DCA) has recently been introduced in the field of dental implantology. This study aimed to evaluate sensitivity and reliability this by measuring implant stability ex vivo samples comparison with a resonance frequency (RFA) device.Six beds were prepared porcine ribs using 3 different drilling protocols simulate various conditions. Thirty-six pork 216 bone-level implants 10 mm height used. The 1 following protocols: 10-mm...

Abstract 3D printing technology has been gradually applied to various areas. In the present study, 3D-printed implants were fabricated with direct metal laser sintering technique for a dental single root titanium. The allocated into following groups: not treated (3D-None), sandblasted large grit and acid-etched (3D-SLA), target-ion-induced plasma-sputtered surface (3D-TIPS). Two holes drilled in each tibia of rabbit, three groups randomly placed mallet. Rabbits sacrificed at two, four,...

Guided bone regeneration (GBR) is the most widely used technique for overcoming deficiency of alveolar bone. However, progression peri-implantitis in regenerative and pristine sites has not been fully investigated. The aim this study to compare experimental around implants placed GBR sites.Bilateral mandibular first molars were extracted from six beagle dogs, standardized horizontal ridge defect was simultaneously created at predetermined site unilateral mandible. After 8 weeks, guided...

Various studies have investigated 3-dimensional (3D)-printed implants using Ti-6Al-4V powder; however, multi-root 3D-printed not been fully investigated. The purpose of this study was to explore the stability multirooted with lattice and solid structures. secondary outcomes were comparisons between 2 types in micro-computed tomographic histological analyses.Lattice- solid-type for left right mandibular third premolars beagle dogs fabricated. Four each group placed immediately following tooth...

Very long baseline radio interferometry (VLBI) with ground-based observatories is limited by the size of Earth, geographic distribution antennas, and transparency atmosphere. In this whitepaper, we present Capella, a tentative design space-only VLBI system. Using four small (<500 kg) satellites in two orthogonal polar low-Earth orbit planes, single-band heterodyne receivers operating at frequencies around 690 GHz, interferometer able to achieve angular resolutions approximately 7...

To compare fully guided flapless implant surgery using a light-cured surgical guide (FG group) with partially open flap (PG in the posterior maxilla when performing simultaneous sinus floor elevation terms of accuracy, time requirements, and patient/clinician-reported outcomes (PROMs CROMs).

The aim of this in vitro study was to examine the curing efficiency various resin-based materials polymerized through ceramic restorations with 3 different thicknesses.Curing evaluated by determining surface microhardness (VHN) resin specimens.MATERIALS AND METHODS.Four kinds were used.Z350 (3M ESPE Filtek TM Z350: A2 Shade), Z250 Z250: Shade) and Variolink � II (VL: Ivoclar vivadent, base: transparent) either or without a self-curing catalyst (VLC: catalyst: low viscosity/transparent)...

Magnetorheological (MR) finishing has been adopted as a newly ultraprecision method for microparticles, an optical system, and aspherical lens, mainly by MR fluids consisting of magnetic carbonyliron (CI) particles carrier fluid such silicone oil or diwater. However, CI are related to corrosion problems because their oxidation, leading unpredictable polishing results short lifetime the fluids. To resolve this problem, we coated with biopolymer xanthan gum (XG) better measured properties...

This study evaluated differences in bone healing and remodeling among 3 implants with different surfaces: sandblasting large-grit acid etching (SLA; IS-III Active®), SLA hydroxyapatite nanocoating (IS-III Bioactive®), stored sodium chloride solution (SLActive®).The mandibular second, third, fourth premolars of 9 dogs were extracted. After 4 weeks, edentulous alveolar ridges underwent surgical placement bilaterally allowed to heal for 2, 4, or 12 weeks. Histologic histomorphometric analyses...

This study aimed to compare bone healing and implant stability for three types of dental implants: a threaded implant, three-dimensional (3D)-printed without spikes, 3D-printed with spikes. In four beagle dogs, left right mandibular premolars (2nd, 3rd, 4th) 1st molars were removed. Twelve weeks later, titanium implants (threaded spikes) randomly inserted into the edentulous ridges each dog. Implant measurements radiographic recordings taken every two following placement. after surgery, dogs...

Abstract Background To minimize alveolar bone resorption, ridge preservation (ARP) has been proposed. Recently, interest in improving the feasibility of implant placement gradually increased, especially situations infection such as periodontal and/or endodontic lesions. The aim this study was to investigate if ARP improves compared with no periodontally compromised sites. Secondary endpoints were necessity graft at time and failure before loading ARP. Material methods This retrospective...

Three- dimensional (3D) technology has been suggested to overcome several limitations in guided bone regeneration (GBR) procedures because 3D-printed scaffolds can be easily molded patient-specific defect site. This study aimed investigate the effect of 3-D printed polylactic acid (PLA) with or without hyaluronic (HA) a rabbit calvaria model.A diameter 15 mm was created 30 New Zealand white rabbits. The rabbits were randomly allocated into three groups including no graft group (control, n =...