Aim: This study aims to assess Croatian dentists' knowledge, attitudes, and use of artificial intelligence (AI) and modern technology, while also identifying perceived barriers to AI and modern technology adoption and evaluating the need for further education and training.
Materials And Methods: A cross-sectional survey was conducted in February 2024 among general dentists in Croatia using a self-structured questionnaire. A total of 200 respondents filled out the questionnaire.
Antibiotic prophylaxis in dentistry has been recommended for different groups of patients, such as patients with impaired immunologic function, patients at risk of developing infective endocarditis or prosthetic joint infection, patients previously exposed to high-dose irradiation of the head and neck regions, and patients receiving intravenous bisphosphonate and antiangiogenic treatment. The guidelines have been changed over the years, and the list of medical conditions requiring antibiotic prophylaxis has been shortened considerably in the context of antibiotic resistance and unnecessary antibiotic prescription.
View Article and Find Full Text PDFObjective: The objective of the study was to investigate the influence of different irrigation protocols on the shear bond strength (SBS) of self-adhesive resin cement (SARC) on primed radicular dentin.
Methods: Radicular dentin slabs (N=58) were embedded in acrylic. Subsequently, they were polished and randomly assigned to five experimental groups (N=8-12) and one control group, CG (N=8).
The estimation of distances and angles is a routine part of an orthopedic surgical procedure. However, despite their prevalence, these steps are most often performed manually, heavily relying on the surgeon's skill and experience. To address these issues, this study presents a sensor-equipped drill system which enables automatic estimation of the drilling angle and channel length.
View Article and Find Full Text PDFBlue diode lasers are alternative curing devices for dental composites. The aim of this study was to investigate the influence of blue diode laser polymerization on shear bond strength of bulk fill composites to human dentin and temperature rise during two types of polymerization. Composite cylinders of SDR Plus(SDR) and Ever X Flow(EX) were bonded to dentin slabs using Adhese Universal and curing devices blue diode laser (449 nm, 1.
View Article and Find Full Text PDFThe purpose of the study was to determine the influence of preparation techniques on marginal adaptation and sealing of Biodentine™ and TotalFill® RRM bioceramic retrograde fillings. Fifty-two single-root teeth extracted for periodontal reasons were used. Root canals were instrumented using Reciproc Blue #25 and obturated using a single cone technique with an AH Plus® root canal sealer.
View Article and Find Full Text PDFThe purpose of this in vitro study was to evaluate erosive wear and change in color of high-viscosity glass ionomer cements after pH cycling in two erosive media. There were 3 experimental groups with 22 samples each, (I) EQUIA Forte HT without coat, (II) Fuji IX and (III) Ketac Universal Aplicap. Each group was randomly divided into three subgroups ( = 6-8) further exposed to different environments, (1) distilled water, (2) green tea (pH 3.
View Article and Find Full Text PDFThe aim of this research was to investigate the compressive strength (CS), breaking strength (BS), and compressive modulus (CM) of conventional glass ionomer cement (GIC) modified with TiO nano particles, marine-derived hydroxyapatite (md-HAp) microparticles (<45 µm), and a combination of TiO NP and md-HAp particles. The materials used in the study were conventional GIC Fuji IX GP Extra (GC Corporation, Tokyo, Japan), TiO powder P25 (Degussa, Essen, Germany), and HAp synthesized from cuttlefish bone and ground in a mortar to obtain md-HAp powder. md-HAp was characterized using FTIR and SEM analysis.
View Article and Find Full Text PDFA wide portfolio of advanced programmable materials and structures has been developed for biological applications in the last two decades. Particularly, due to their unique properties, semiconducting materials have been utilized in areas of biocomputing, implantable electronics, and healthcare. As a new concept of such programmable material design, biointerfaces based on inorganic semiconducting materials as substrates introduce unconventional paths for bioinformatics and biosensing.
View Article and Find Full Text PDFThe purpose of the study was to determine the wear rate of Equia Forte HT Fil with Equia Forte Coat or without coating and compare it with Fuji IX GP high-viscosity glass ionomer cement (GIC) in conditions with acid load or at neutral pH. The samples were stored for 7 days: (1) in artificial saliva, (2) in artificial saliva and cyclically exposed to low pH, and (3) in distilled water and cyclically exposed to low pH. Wear was determined by measuring the difference in mass before and after brushing in an abrasion testing device.
View Article and Find Full Text PDFMicroorganisms regulate their interactions with surfaces by altering the transcription of specific target genes in response to physicochemical surface cues. To assess the influence of surface charge and surface chemistry on the transcriptional oxidative stress response, we evaluated the expression of three genes, , , and from the Gram-negative bacterium, after a short exposure to GaN interfaces. We observed that both surface charge and surface chemistry were the factors regulating the transcriptional response of the target genes, which indicates that reactive oxygen species (ROS) generation and the ROS response at the GaN interfaces were affected by changing surface properties.
View Article and Find Full Text PDFThe surface properties of inorganic materials can be used to modulate the response of microorganisms at the interface. We used the persistent photoconductivity properties of chemically treated gallium nitride substrates to evaluate the stress response of wild-type, ΔfliC, and ΔcsgG mutant exposed to charged surfaces. Substrate surface characterization and biological assays were used to correlate the physiological response to substrate surface charge.
View Article and Find Full Text PDFThe purpose of this study was to evaluate the effects of the incorporation of hydroxyapatite (HA) derived from cuttlefish bone on the mechanical properties of glass ionomer cements (GIC). Fuji II LC and Fuji IX GP Extra (GC Corporation, Tokyo, Japan) were used in the study. There were four groups ( = 11-18) for each material: a group without the addition of HA particles and three groups modified by incorporation of 2, 5, and 10 wt% HA.
View Article and Find Full Text PDFJ Stomatol Oral Maxillofac Surg
November 2020
Purpose: Orofacial clefts are the most common congenital malformations that affect craniofacial structures. Studies show that they have a major influence on psychological development of the patient, and on their families. A review of the literature showed a lack of specific questionnaires for children and their parents.
View Article and Find Full Text PDFACS Appl Bio Mater
September 2019
Bacterial behavior is often controlled by structural and composition elements of their cell wall. Using genetic mutant strains that change specific aspects of their surface structure, we modified bacterial behavior in response to semiconductor surfaces. We monitored the adhesion, membrane potential, and catalase activity of the Gram-negative bacterium () that were mutant for genes encoding components of their surface architecture, specifically flagella, fimbriae, curli, and components of the lipopolysaccharide membrane, while on gallium nitride (GaN) surfaces with different surface potentials.
View Article and Find Full Text PDFThe surface properties of biomolecular gradients are widely known to be important for controlling cell dynamics, but there is a lack of platforms for studying them in vitro using inorganic materials. The changes in various surface properties of an Al Ga N film (0.173 ≤ ≤ 0.
View Article and Find Full Text PDFOxides containing Ga have been studied by various research communities due to their stability under harsh conditions as well as conductivity and luminescence properties. Nanostructured forms of such oxides can be fabricated by a variety of methods. Advances in synthesis approaches have focused on control over size and shape that can permit adaptation in applied interfaces related to medicine, energy, and the environment.
View Article and Find Full Text PDFNeurotypic PC12 cells behavior was studied on nanostructured GaN and rationalized with respect to surface charge, doping level, and chemical functionalization. The semiconductor analysis included atomic force microscopy, Kelvin probe force microscopy, and X-ray photoelectron spectroscopy. The semiconductor surfaces were then evaluated as biointerfaces, and the cell behavior was quantified based on cell viability, reactive oxygen species production, as well as time dependent intracellular Ca concentration, [Ca], a known cell-signaling molecule.
View Article and Find Full Text PDFThe changes of the surface properties of Au, GaN, and SiO after UV light irradiation were used to actively influence the process of formation of Pseudomonas aeruginosa films. The interfacial properties of the substrates were characterized by X-ray photoelectron spectroscopy and atomic force microscopy. The changes in the P.
View Article and Find Full Text PDFThe reported results test the effects of the collective behavior hypothesized to contribute to the production of more reactive oxygen species (ROS) in vitro and result in an enhanced radiosensitization. The role of particle shape in composites with gallium oxyhydroxide (GaOOH) particles and Matrigel is studied. Particles of two different shapes are embedded into the gel to understand only the materials effect on the generation of ROS rather than cell penetrating variations.
View Article and Find Full Text PDFThe persistent photoconductivity (PPC) of the n-type Ga-polar GaN was used to stimulate PC12 cells noninvasively. Analysis of the III-V semiconductor material by atomic force microscopy, Kelvin probe force microscopy, photoconductivity, and X-ray photoelectron spectroscopy quantified bulk and surface charge, as well as chemical composition before and after exposure to UV light and cell culture media. The semiconductor surface was made photoconductive by illumination with UV light and experienced PPC, which was utilized to stimulate PC12 cells in vitro.
View Article and Find Full Text PDFBaker's yeast, S. cerevisiae, is a model organism that is used in synthetic biology. The work demonstrates how GaN nanostructured thin films can encode physiological responses in S.
View Article and Find Full Text PDFInt J Aging Hum Dev
September 2018
The aim of this study was to identify which employees' sociodemographic characteristics and personality traits affected their career development. The research was conducted on a sample of 462 employees, aged between 30 and 55. The final analysis of covariance model included only characteristics which had previously been identified as having significant effect and relations with career development: gender, age, education level, years of work experience with the current employer, total years of work experience, financial status, and all Big Five traits.
View Article and Find Full Text PDFPurpose: It is known that shoulder surgery may cause iatrogenic injury to the axillary nerve as a serious complication, but there is little evidence to indicate whether the axillary nerve is at risk of injury during an anterolateral acromial approach for minimally-invasive plate osteosynthesis (MIPO) of proximal humerus fractures. We hypothesised that this surgical method is safe for the axillary nerve and would preserve it from iatrogenic injury.
Materials And Methods: We conducted a prospective follow-up cohort study on 49 consecutive patients with proximal humerus fractures who were managed with MIPO through an anterolateral approach.
Wide bandgap semiconductors such as gallium nitride (GaN) exhibit persistent photoconductivity properties. The incorporation of this asset into the fabrication of a unique biointerface is presented. Templates with lithographically defined regions with controlled roughness are generated during the semiconductor growth process.
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