An observational study was conducted on a sample of 24 patients (average age of 61 years), through clinical and imagistic methods. The phenomena of adhesion and cohesion are reviewed and discussed with particular reference to dentistry. Group I: 5 mL of 2.5% NaOCl + QMix. Stainless steel rectangular flat, stainless steel round, and FRC retainers were tested at 0.2 and 0.3 mm deflections and at a maximum load. increasingly vulnerable to various stressors. The samples were randomly divided into ten groups (n=3). The equilibrium contact angle ranged from 59.9 to 77.3 degrees, and contact angle hysteresis ranged from 14.7 to 30.6 degrees. This in vitro study investigated the wettability of nine commercially available dental materials. Lasers Med Sci. | The mean data obtained from contact angle and bonding strength measurements were subjected to t test and 2-way ANOVA (α=.05). A biomaterial's surface properties, such as wettability, roughness, surface energy, surface charge, chemical functionalities and composition, are determinants of cell adhesion and subsequent tissue behavior. Ten disc-shaped specimens (12 × 1 mm) were mixed and fabricated at room temperature. This study showed that various laser fluences, scanning speeds, and scanning line spacings can alter dentin wettability. found in the medical literature to be applied to patients with different characteristics and oral health status. Samples in group 9 were prepared using a mechanical rotary instrument. Modification of the Ceramic Implant Surfaces from Zirconia by the Magnetron Sputtering of Different Calcium Phosphate Targets: A Comparative Study. Abstract. Crowns of 15 extracted human teeth were cut longitudinally into slices approximately 1.5-mm thick with a cutting instrument. The purpose of this investigation was to evaluate the wettability changes of polyether impression material after immersing in four different chemical disinfectant solutions for a period of 10 min and 30 min, respectively. Some anatomical aspects may present a fact of prevision of the appearance of root resorption within the orthodontic treatment. Polyetheric materials, A-silicones with added surfactants and C-silicones were found to have a good wettability. Search for more papers by this author. Wettability was estimated by measuring the equilibrium and hysteresis contact angles using the dynamic contact angle analysis, or Wilhelmy, technique. COVID-19 is an emerging, rapidly evolving situation. The advent of nanotechnology in dentistry seems to have answers to the mysteries or problems associated with conventional materials, as they have the tendency to, Dental materials and clinical accessories may potentially cause adverse reactions in dentists, auxiliaries or patients. If the solder has poor wettability, it forms droplets. Adhesion of restorative and protective materials to dentin is an important requirement for operative and preventive dentistry. The terpolymer of acrylic acid (AA)-itaconic acid (IA)-N-vinylcaprolactam (NVC) with a molar ratio of 8:1:1 (AA:IA:NVC) was synthesized by free radical polymerization and characterized using nuclear magnetic resonance ((1)H-NMR) and Fourier transform infrared spectroscopy (FTIR). Polymeric material shows a similar temperature rise to the mucosa (thermal impression) and residual heat. Significance Following ablation and preparation, the samples were examined for surface roughness with a three-dimensional laser profile measurement microscope. The phenomena of adhesion and cohesion are reviewed and discussed with particular reference to dentistry. It is the responsibility of the clinician to become aware of all materials available, and to have an understanding of their properties to guide them in making sound clinical judgments. Table 5. Whereas the chosen ceramic and composite … Wettability, or wetting, which is a material’s ability to spread over a surface, 4 strongly affects the accuracy of an impression material. Methods: Samples for 5 materials were prepared and stored dry or wet in deionized water pH 6.8. Objectives: The aim of this in vitro study was to evaluate the wettability of AH Plus and ThermaSeal Plus sealers on intraradicular dentine treated with different irrigating solutions. Methods Lee SJ, Choi JS, Park KS, Khang G, Lee YM, Lee HB. Zheng Z, Zhang L, Kong L, Wang A, Gong Y, Zhang X. J Biomed Mater Res A. Results: Significant augmentation of SE values was observed in all NTP treated groups, dictated by the increase of the polar component. For deep dentin, collagen removal did not influence the average roughness, but it resulted in a significantly greater degree of wettability. All materials were significantly less wetted than the denture acrylic resin material. In contact with water, there is an increase in the polar surface free energy from 9.5 to 21 mJ m −2.Various other surface modification treatments have been examined (chemical treatment, gold deposition and flaming), which also bring about a surface polar component increase and thus produce a better wettability … Materials and Methods: Specimens from three different polymers for CAD/CAM use (Artbloc-Temp, Merz Dental; CAD-Temp, Vita; C-Temp, Kavo) and three different established materials for provisional fixed restorations (Luxatemp, DMG; Prevision, Hereaus; Protemp, 3MEspe) were prepared and tested on human oral epithelial cells. ... La aceste aspecte legate de edentaţia şi protezarea totală convenţională se adaugă particularităţile generale ale pacienţilor, de regulă persoane în vârstă cu modificări fiziologice evolutive şi cu o patologie generală bogată, ce pun probleme deosebite în reabilitarea orală prin protezare, cuantificarea şi cunoaşterea interrelaţiei statusului oral cu "starea de bine" a pacientului fiind un aspect important pentru o mai corectă abordare terapeutică. The aim of the current study was to evaluate thermal conduction during the polymerization reaction of each material to offer clinical guidelines, The problems of occlusion extend into nearly all branches of dentistry. The purpose of the present study was to evaluate the superficial roughness and contact angle after two types of polishing and the Vickers hardness of three acrylic resins (Duralay - G1, Dencrilay - G2, and Dencor - G3), all shade 66, indicated for provisional fixed prostheses. The images were recorded by using a charged coupled device (CCD) camera equipped with a set of vision filters from the Thermo-Wet laboratory stand. Faculty of Dentistry, The University of Hong Kong, Hong Kong, China. NTP decreased C and increased O on both surfaces independently of application protocol. These results were obtained by mean of the initial values of the first captured image of the drop-in contact with the specimen. Surface roughness decreased significantly as the polishing process progressed (p<0.0001). included in this study by using the 'Shear Bond Strength' search term in March 2017. In the study, the test is evaluated in the group inpatients of geriatric hospital separated into Frail (14 patients) and Control (14 patients) groups. The effect of the hard and soft segments concentrations, polyols nature and chain extender structures on the polymers has been discussed with respect to thermal, mechanical and wetting properties. 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