Odontologia: Enviaments recents
Ara mostrant els elements 321-340 de 345
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Effect of temperature on the orthodontic clinical applications of NiTi closed-coil springs
(Medicina Oral, Patologia Oral y Cirugia Bucal, 2013-07-01)NiTi spring coils were used to obtain large deformation under a constant force. The device consists on a NiTi coil spring, superelastic at body temperature, in order to have a stress plateau during the ... -
Accuracy of implant casts generated with conventional and digital impressions: an In vitro study
(International Journal of Environmental Research and Public Health, 2018)Purpose: The aim of this study was to compare the accuracy of digital dental impressions with the accuracy of impressions obtained via conventional techniques. Methods: Two different master models were ... -
Two different strategies to enhance osseointegration in porous titanium: inorganic thermo-chemical treatment versus organic coating by peptide adsorption
(International Journal of Molecular Sciences, 2018)In this study, highly-interconnected porous titanium implants were produced by powder sintering with different porous diameters and open interconnectivity. The actual foams were produced using high cost ... -
Antibacterial properties of triethoxysilylpropyl succinic anhydride silane (TESPSA) on titanium dental implants
(Polymers, 2020)Infections related to dental implants are a common complication that can ultimately lead to implant failure, and thereby carries significant health and economic costs. In order to ward off these infections, ... -
Mechanical characterisation and biomechanical and biological behaviours of Ti-Zr binary-alloy dental implants
(BioMed Research International, 2017)The objective of the study is to characterise the mechanical properties of Ti-15Zr binary alloy dental implants and to describe their biomechanical behaviour as well as their osseointegration capacity ... -
Resonance frequency analysis by the Osstell system, using the transducer screwed to different healings abutments
(Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial, 2017)Objectives: compare the ISQ values obtained by the Osstell ISQ, screwing the Smarpeg directly to the implant or to the new designed healing abutments of 2, 3.5 and 5 mm of height. Methods: 60 rough ... -
Relevant design aspects to improve the stability of titanium dental implants
(Materials, 2020)Post-extractional implants and immediate loading protocols are becoming much more frequent in everyday clinical practice. Given the existing literature about tapered implants, the objective of this paper ... -
Influence of the titanium implant surface treatment on the surface roughness and chemical composition
(Materials, 2020)The implant surface features affect the osseointegration process. Different surface treatment methods have been applied to improve the surface topography and properties. Trace of different elements may ... -
Comparison of changes in the dental transverse and sagittal planes between patients treated with self-ligating and with conventional brackets
(Dental Press Journal of Orthodontics, 2020)Introduction: Several advantages have been established regarding the efficiency of self-ligating brackets (SL). In spite of some controversy surrounding this question in the literature, clinical results ... -
Impact of surgical maxillomandibular advancement upon pharyngeal airway volume and the apnoea–hypopnoea index in the treatment of obstructive sleep apnoea: systematic review and meta-analysis
(BJM Open Respiratory Research, 2019)Background: A systematic review was carried out on the effect of surgical maxillomandibular advancement (MMA) on pharyngeal airway (PA) dimensions and the apnoea–hypopnoea index (AHI) in the treatment ... -
NiTi superelastic orthodontic archwires with polyamide coating
(Journal of Materials Science: Materials in Medicine, 2013-10-24)Twenty orthodontic archwires with 55.2 % Ni and 44.8 % Ti (% weight) were subjected to a dipping treatment to coat the NiTi surface by a polyamide polymer. It has been selected a Polyamide 11 due to its ... -
Nanotopological-tailored calcium phosphate cements for the odontogenic stimulation of human dental pulp stem cells through integrin signaling
(RSC Advances, 2015-07-16)Calcium phosphate cements (CPCs) are a unique class of inorganic injectables attractive for the repair and regeneration of hard tissues. Tailoring the crystallite properties of CPC, particularly to ... -
Effect of 2% chlorhexidine on dentin shear bond strength of different adhesive systems: a 6 months evaluation
(International Journal of Morphology, 2017)This study evaluated the effect of chlorhexidine dentin treatment on shear bond strength (SBS) of adhesive systems after different storages. The work included 144 third molars that had their dentin ... -
In-vitro comparative study of the use of 2 % chlorhexidine on microtensile bond strength of different dentin adhesives: a 6 months evaluation
(International Journal of Morphology, 2017-09)The aim of this study was to evaluate the effect of chlorhexidine (CHX) dentin treatment on microtensile bond strength (µTBS) of adhesive systems in different storage times. Occlusal enamel was removed ... -
Shear bond strength of nanohybrid composite to biodentine with three different adhesives
(Coatings, 2019)Biodentine® is a bioactive dentin coating widely used for dental restoration; however, its adhesion to the substrate could limit its clinical success. The aim of this study was to evaluate the shear ... -
In-vitro development of a temporal abutment screw to protect osseointegration in immediate loaded implants
(The Journal of Advanced Prosthodontics, 2015-04-23)Purpose: In this study, a temporal abutment fixation screw, designed to fracture in a controlled way upon application of an occlusal force sufficient to produce critical micromotion was developed. The ... -
Fabrication and deposition of copper and copper oxide nanoparticles by laser ablation in open air
(Nanomaterials, 2020-02-10)The proximity of the “post-antibiotic era”, where infections and minor injuries could be a cause of death, there are urges to seek an alternative for the cure of infectious diseases. Copper nanoparticles ... -
Fracture and fatigue of titanium narrow dental implants: new trends in order to improve the mechanical response
(Materials, 2019-11-12)Sixty-four fractured commercially pure titanium (cp-Ti) narrow dental implants (NDIs) with similar macrogeometry and connection designs were studied after different implantation times in humans in order ... -
Nanotechnology in dentistry: prevention, diagnosis, and therapy
(International Journal of Nanomedicine, 2015-10-08)Nanotechnology has rapidly expanded into all areas of science; it offers significant alternative ways to solve scientific and medical questions and problems. In dentistry, nanotechnology has been exploited ... -
Short-term effect of antibiotics on human gut microbiota
(PLoS ONE, 2014-04-18)From birth onwards, the human gut microbiota rapidly increases in diversity and reaches an adult-like stage at three years of age. After this age, the composition may fluctuate in response to external ...