Examining the stability of experts’ clinical case processing: An experimental manipulation

2005 ◽  
Vol 33 (3) ◽  
pp. 251-270 ◽  
Author(s):  
Anique B.H. De Bruin ◽  
Margaretha W.J. Van De Wiel ◽  
Remy M.J.P. Rikers ◽  
Henk G. Schmidt
2019 ◽  
Vol 2019 ◽  
pp. 1-6 ◽  
Author(s):  
Andrea Rodríguez Moreno ◽  
Mariné Ortiz Magdaleno ◽  
Marissa Muñoz Islas ◽  
Jorge Armando Villar Mercado ◽  
María del Pilar Goldaracena Azuara ◽  
...  

Ranging from the extraction of teeth from anterior sector commitment to the loss of bone and soft tissues, alveolar preservation is a regenerative technique that employs biomaterials that induce the preservation of bone tissue and minimize resorption. Placement of provisional restorations at the defect site maintains the stability of the soft tissues and aesthetics at which the definitive restoration is found. The objective of this clinical case was alveolar preservation postextraction of the anterior tooth that presented a coronal fracture, placing the clinical crown of the extracted tooth as the provisional restoration to maintain stability and to avoid soft tissue collapse and compromise to an aesthetic area.


2016 ◽  
Vol 41 (4) ◽  
pp. 363-369 ◽  
Author(s):  
AFM Cardenas ◽  
FSF Siqueira ◽  
A Davila-Sanchez ◽  
GM Gomes ◽  
A Reis ◽  
...  

SUMMARY Knowledge about the stability of fiber posts cemented in widened canal spaces over time is scarce in the literature. Thus, the purpose of this case report was to evaluate the performance of a direct anatomical post in a widened canal space over the course of four years. The present clinical case describes the rehabilitation of a widened canal space using a direct anatomical post (a resin composite combined with a prefabricated glass fiber post) associated with an all-ceramic crown and other restorative procedures. This technique is easy to perform and may solve some of the problems associated with the cementation of a poorly adapted fiber post in a widened canal space.


2017 ◽  
Vol 284 (1854) ◽  
pp. 20162703 ◽  
Author(s):  
Arthur R. Keith ◽  
Joseph K. Bailey ◽  
Matthew K. Lau ◽  
Thomas G. Whitham

We examined the hypothesis that genetics-based interactions between strongly interacting foundation species, the tree Populus angustifolia and the aphid Pemphigus betae , affect arthropod community diversity, stability and species interaction networks of which little is known. In a 2-year experimental manipulation of the tree and its aphid herbivore four major findings emerged: (i) the interactions of these two species determined the composition of an arthropod community of 139 species; (ii) both tree genotype and aphid presence significantly predicted community diversity; (iii) the presence of aphids on genetically susceptible trees increased the stability of arthropod communities across years; and (iv) the experimental removal of aphids affected community network structure (network degree, modularity and tree genotype contribution to modularity). These findings demonstrate that the interactions of foundation species are genetically based, which in turn significantly contributes to community diversity, stability and species interaction networks. These experiments provide an important step in understanding the evolution of Darwin's ‘entangled bank’, a metaphor that characterizes the complexity and interconnectedness of communities in the wild.


2003 ◽  
Vol 137 (3) ◽  
pp. 213-223 ◽  
Author(s):  
Remy Rikers ◽  
Wilco Te Winkel ◽  
Sofie Loyens ◽  
Henk Schmidt

2007 ◽  
Vol 41 (12) ◽  
pp. 1166-1172 ◽  
Author(s):  
Alireza Monajemi ◽  
Remy M J P Rikers ◽  
Henk G Schmidt

2002 ◽  
Vol 115 (4) ◽  
pp. 609 ◽  
Author(s):  
Remy M. J. P. Rikers ◽  
Henk G. Schmidt ◽  
Henny P. A. Boshuizen ◽  
Gerard C. M. Linssen ◽  
Geertjan Wesseling ◽  
...  

Vaccines ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 702 ◽  
Author(s):  
Lourdes Mateos-Hernández ◽  
Dasiel Obregón ◽  
Jennifer Maye ◽  
Jeremie Borneres ◽  
Nicolas Versille ◽  
...  

The tick microbiota is a highly complex ensemble of interacting microorganisms. Keystone taxa, with a central role in the microbial networks, support the stability and fitness of the microbial communities. The keystoneness of taxa in the tick microbiota can be inferred from microbial co-occurrence networks. Microbes with high centrality indexes are highly connected with other taxa of the microbiota and are expected to provide important resources to the microbial community and/or the tick. We reasoned that disturbance of vector microbiota by removal of ubiquitous and abundant keystone bacteria may disrupt the tick-microbiota homeostasis causing harm to the tick host. These observations and reasoning prompted us to test the hypothesis that antibodies targeting keystone bacteria may harm the ticks during feeding on immunized hosts. To this aim, in silico analyses were conducted to identify keystone bacteria in the microbiota of Ixodes nymphs. The family Enterobacteriaceae was among the top keystone taxa identified in Ixodes microbiota. Immunization of α-1,3-galactosyltransferase-deficient-C57BL/6 (α1,3GT KO) mice with a live vaccine containing the Enterobacteriaceae bacterium Escherichia coli strain BL21 revealed that the production of anti-E. coli and anti-α-Gal IgM and IgG was associated with high mortality of I. ricinus nymphs during feeding. However, this effect was absent in two different strains of wild type mice, BALB/c and C57BL/6. This result concurred with a wide distribution of α-1,3-galactosyltransferase genes, and possibly α-Gal, in Enterobacteriaceae and other bacteria of tick microbiota. Interestingly, the weight of I. ricinus nymphs that fed on E. coli-immunized C57BL/6 was significantly higher than the weight of ticks that fed on C57BL/6 immunized with a mock vaccine. Our results suggest that anti-tick microbiota vaccines are a promising tool for the experimental manipulation of vector microbiota, and potentially the control of ticks and tick-borne pathogens.


Author(s):  
K.S. Khusanbaev ◽  
◽  
A.F. Yusupov ◽  
A.A. Abdushukurova ◽  
T.F. Sultonmurodov ◽  
...  

Purpose. To present a clinical case of surgical treatment of post-traumatic aphakia by the method of corneoscleral IOL fixation using the combined method of Kanabrava and Kozhukhov. Material and methods. In March 2021, patient A., born in 1992, turned to the RSSPCEM. diagnosed with OS Condition after a penetrating injury to the eye. Corneal scar. Post-traumatic aphakia. Foreign body (non-metallic) driven into the retina. A decision was made on OS surgical treatment of aphakia by the method of transscleral IOL fixation as the most gentle method, taking into account the paracentral scar of the cornea. And do not remove the foreign body, but additionally restrict it with laser coagulates. Results. On the 14th day after the operation, visual acuity OS 0.7, IOP 18. The eye is calm, there is a scar on the cornea in the paraoptic zone, transparent in the rest of the zone, the anterior chamber is deep, the iris is subatrophic, the pupil is 3 mm, deformed, the IOL is in the posterior chamber, centered. The fundus of the eye: the optic disc is pale pink, the boundaries are clear, the reflex is blurred in the macular zone, the foreign body is limited by pigmented laser coagulates. The standard postoperative drop regimen is recommended. Conclusions. 1. Corneoscleral fixation of the IOL according to the combined method of Canabrava and Kojuhov in the aphakic eye in complicated cases allows to achieve good refractive results with the developed technique of execution. 2. Preliminary laser limitation of an encapsulated non-metallic foreign body gives confidence in the stability of the retina in the intra- and postoperative period. 3. Further clinical observations are required using the above-described surgical technique for correcting aphakia Key words: сorneoscleral fixation, aphakia, Canabrava, Kojuhov.


2016 ◽  
Vol 19 (2) ◽  
pp. 121 ◽  
Author(s):  
Rafael Menezes-Silva ◽  
Carlos Andres Villavicencio Espinoza ◽  
Maria Tereza Atta ◽  
Maria Fidela de Lima Navarro ◽  
Sergio Kiyoshi Ishikiriama ◽  
...  

<p><strong>ABSTRACT</strong></p><p><strong> </strong></p><p>The purpose of this clinical case description article was to present the planning sequence, indication, treatment and performance to obtain a crown of the Endocrown type. This clinical case description article illustrates a therapeutic option for functional and esthetic rehabilitation of a devitalized mandibular molar, presenting a small amount of remaining coronal tooth structure, by means of cementing a pure porcelain crown of the Endocrown type (Adhesive Endodontic Crown). A 39-year-old woman presented to the Graduate clinic of the Bauru Dental School (FOB), University of São Paulo (USP), with the complaint that tooth #36 had an extensive and unsatisfactory composite resin restoration. The lithium disilicate-based system of monolithic porcelain was used with the lost wax technique. This therapy promoted the stability and retention of the indirect restoration, without the need for performing reconstruction of the above mentioned tooth, either by means of a cast metal core or reconstruction with intracanal post, thereby reducing the treatment time. After the tooth preparation, the provisional restoration was done with acrylic resin to determine if the retention and stability of the remaining tooth was adequate to receive the indirect Endocrown restoration. The characteristics of the internal and external walls of the dental remnants, cervical termination, impression-taking, laboratory stages and adhesive cementation will be discussed. The major advantage of indicating an endocrown is the use of the dental remnants itself, particularly the pulp chamber, to promote retention and stability in cases without adequate height for performing complete dental and crown reconstruction.<strong></strong></p><p><strong>Keywords</strong></p><p>Adhesive endodontic crown; Devitalized tooth; Lithium dissilicate.</p>


1982 ◽  
Vol 99 ◽  
pp. 605-613
Author(s):  
P. S. Conti

Conti: One of the main conclusions of the Wolf-Rayet symposium in Buenos Aires was that Wolf-Rayet stars are evolutionary products of massive objects. Some questions:–Do hot helium-rich stars, that are not Wolf-Rayet stars, exist?–What about the stability of helium rich stars of large mass? We know a helium rich star of ∼40 MO. Has the stability something to do with the wind?–Ring nebulae and bubbles : this seems to be a much more common phenomenon than we thought of some years age.–What is the origin of the subtypes? This is important to find a possible matching of scenarios to subtypes.


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