Stability of Implant-Abutment Connection After Using the Rescue Kit: An In Vitro Study.

Purpose: To evaluate whether removing a fractured abutment screw with a specific rescue device negatively affects the success of a new restoration in terms of early abutment loosening.

Materials And Methods: Implants (n = 10) with a regular platform of 4.1 mm (tissue level [TL]) and implants (n = 10) with a reduced diameter of 3.

Total Body Irradiation: Guidelines from the International Lymphoma Radiation Oncology Group (ILROG).

Total body irradiation (TBI) remains an effective myeloablative treatment in regimens used for preparation and conditioning before allogeneic stem cell transplantation for leukemia. The regimens used vary across institutions in terms of dose, dose rate, fractionation, and technique. The objective of this document is to provide comprehensive guidelines for the current practice of delivering total body irradiation.

Spatial and temporal changes in biodiversity and ecosystem services in the San Antonio River Basin, Texas, from 1984 to 2010.

A fundamental premise of the Millennium Ecosystem Assessment is that biodiversity and ecosystem services are key determinants of long-term sustainability of social-ecological systems. With a continuing decline in local and global biodiversity and ecosystem services, it is crucial to understand how biodiversity and various ecosystem services interact and how land change may modify these interactions over time. However, few studies have been conducted to quantify these relationships.

Plan optimization for mediastinal radiotherapy: Estimation of coronary arteries motion with ECG-gated cardiac imaging and creation of compensatory expansion margins.

Background And Purpose: Inadvertent heart and coronary arteries (CA) irradiation may increase the risk of coronary artery disease (CAD) in patients receiving thoracic irradiation. To date, the entity of cardiac-related CA displacement and the possible margins to be used for planning organs at risk volume (PRV) have been poorly described. Aim of this study was to quantify CA displacement and to estimate PRV through the use of ECG-gated computed tomography (CT) scans.

Evaluation of Two 3D Printers for Guided Implant Surgery.

Purpose: To compare the suitability of a fused filament fabrication (FFF) consumer 3D printer with a professional digital light processing (DLP) printer for the production of surgical templates for guided oral implant surgery.

Materials And Methods: Eight virtual templates were printed with two different 3D printers. These were optically scanned and the incongruences between virtual and printed templates were determined after alignment of the surface scans and the virtual data.

Real time evolution of unprotected protonated galactosamine probed by IRMPD spectroscopy.

Conformational characterization of single α- and β-epimers of galactosamine in solution still remains an intriguing task because of their flexibility and ability to interconvert. This difficulty was circumvented by recording several "snapshots" of the epimerization process by means of fast ESI vaporization of a galactosamine·HCl sample solution at different times. Consequently, the so generated gaseous mixtures were spectroscopically investigated and the specific conformational features of both α- and β-epimers were assigned, despite the overlapping of several IR signals.

Multimodal label-free ex vivo imaging using a dual-wavelength microscope with axial chromatic aberration compensation.

Label-free microscopy is a very powerful technique that can be applied to study samples with no need for exogenous fluorescent probes, keeping the main benefits of multiphoton microscopy, such as longer penetration depths and intrinsic optical sectioning while enabling serial multitechniques examinations on the same specimen. Among the many label-free microscopy methods, harmonic generation (HG) is one of the most intriguing methods due to its generally low photo-toxicity and relative ease of implementation. Today, HG and common two-photon microscopy (TPM) are well-established techniques, and are routinely used in several research fields.

Measurement of the Q^{2} Dependence of the Deuteron Spin Structure Function g_{1} and its Moments at Low Q^{2} with CLAS.

We measured the g_{1} spin structure function of the deuteron at low Q^{2}, where QCD can be approximated with chiral perturbation theory (χPT). The data cover the resonance region, up to an invariant mass of W≈1.9  GeV.

Search for Invisible Decays of a Dark Photon Produced in e^{+}e^{-} Collisions at BaBar.

We search for single-photon events in 53  fb^{-1} of e^{+}e^{-} collision data collected with the BABAR detector at the PEP-II B-Factory. We look for events with a single high-energy photon and a large missing momentum and energy, consistent with production of a spin-1 particle A^{'} through the process e^{+}e^{-}→γA^{'}; A^{'}→invisible. Such particles, referred to as "dark photons," are motivated by theories applying a U(1) gauge symmetry to dark matter.

Critical appraisal of the role of volumetric modulated arc therapy in the radiation therapy management of breast cancer.

Background: The aim of this review is the critical appraisal of the current use of volumetric modulated arc therapy for the radiation therapy management of breast cancer. Both clinical and treatment planning studies were investigated.

Material And Methods: A Pubmed/MEDLINE search of the National Library of Medicine was performed to identify VMAT and breast related articles.

Measurement of the D^{*}(2010)^{+}-D^{+} Mass Difference.

We measure the mass difference, Δm_{+}, between the D^{*}(2010)^{+} and the D^{+} using the decay chain D^{*}(2010)^{+}→D^{+}π^{0} with D^{+}→K^{-}π^{+}π^{+}. The data were recorded with the BABAR detector at center-of-mass energies at and near the ϒ(4S) resonance, and correspond to an integrated luminosity of approximately 468  fb^{-1}. We measure Δm_{+}=(140 601.

First Exclusive Measurement of Deeply Virtual Compton Scattering off ^{4}He: Toward the 3D Tomography of Nuclei.

We report on the first measurement of the beam-spin asymmetry in the exclusive process of coherent deeply virtual Compton scattering off a nucleus. The experiment uses the 6 GeV electron beam from the Continuous Electron Beam Accelerator Facility (CEBAF) accelerator at Jefferson Lab incident on a pressurized ^{4}He gaseous target placed in front of the CEBAF Large Acceptance Spectrometer (CLAS). The scattered electron is detected by CLAS and the photon by a dedicated electromagnetic calorimeter at forward angles.

Cling film as storage medium for avulsed teeth. An in vitro pilot study.

The long-term prognosis of avulsed teeth primarily depends on the behavior at the scene of the accident. Lay people are not able to perform an immediate replantation. Therefore, particular significance belongs to the cell-physiologic storage of avulsed teeth.

Cling film as storage medium for avulsed teeth. An in vitro pilot study.

The long-term prognosis of avulsed teeth primarily depends on the behavior at the scene of the accident. Lay people are not able to perform an immediate replantation. Therefore, particular significance belongs to the cellphysiologic storage of avulsed teeth.

Evaluation of a halitosis clinic over a period of eleven years.

About every fourth individual suffers at least temporarily from oral malodor. The most frequent cause of it is the oral cavity, in particular the tongue coating. In professional halitosis clinics, findings and diagnoses are discussed with the patients, and individual therapy concepts are designed.

Evaluation of a halitosis clinic over a period of eleven years.

About every fourth individual suffers at leasttemporarily from oral malodor. The most frequentcause of it is the oral cavity, in particular thetongue coating. In professional halitosis clinics,findings and diagnoses are discussed with thepatients, and individual therapy concepts are designed.

Epigallocatechin-3-O-gallate alleviates the malignant phenotype in A-431 epidermoid and SK-BR-3 breast cancer cell lines.

In this study, we evaluated the effects of epigallocatechin-3-O-gallate (EGCG) in two cancer cell lines, A-431 overexpressing ErbB1 and SK-BR-3, overexpressing ErbB2. EGCG treatment showed dose-dependent collapse of mitochondrial membrane potential (Δψ), increase in reactive oxygen species (ROS) production, changes in nuclear morphology and reduced viability. Flow cytometry data indicated that EGCG partially decreases the phosphorylation of several proteins involved in cell proliferation and survival: pErbB1(Y1173, Y1068), pAkt(S473) and pERK(Y204).

CXCL1 activates TRPV1 via Gi/o protein and actin filaments.

Aims: CXCL1 is a chemokine with pleiotropic effects, including pain and itch. Itch, an unpleasant sensation that elicits the desire or reflex to scratch, it is evoked mainly from the skin and implicates activation of a specific subset of IB4+, C-type primary afferents. In previous studies we showed that acute application of CXCL1 induced a Ca influx of low amplitude and slow kinetics in a subpopulation of transient receptor potential vanilloid type 1 (TRPV1)+/isolectin B4 (IB4)+dorsal root ganglia neurons which also responded to other itch-inducing agents.

Chemokine (C-X-C motif) ligand 1 (CXCL1) and chemokine (C-X-C motif) ligand 2 (CXCL2) modulate the activity of TRPV1+/IB4+ cultured rat dorsal root ganglia neurons upon short-term and acute application.

CXCL1 and CXCL2 are two chemokines with 78% homology of their sequence. CXCL1 was associated with atopic dermatitis, a highly pruritic skin disease, but it is not clear what is its mechanism of action, while for CXCL2 there are no data about an association with itch sensitivity. CXCL1 and CXCL2 can modulate TRPV1 receptors, which are one of the most important downstream effectors for itch sensitivity, upon short-term (4 h) or long-term (24 h) incubation, but the data are incomplete.

Dental tourism from Switzerland to Germany.

In recent years the topic of dental tourism has increasingly come into focus of dentists and patients. In the present study an attempt was made to find out, why patients from a restricted region travel to Germany for dental care. In five German dental clinics located in the border area between Switzerland and Germany, 272 women and 236 men ranging in age from 5 to 94 years, who had undergone at least one dental treatment in Germany, were questioned concerning the reasons for their visits.

No differences in radiological changes after 3D conformal vs VMAT-based stereotactic radiotherapy for early stage non-small cell lung cancer.

Objective: To compare patterns of acute and late radiological lung injury following either 3D conformal or image-guided volumetric modulated arc therapy stereotactic radiotherapy for Stage I non-small-cell lung cancer.

Methods: We included 148 patients from a prospective mono-institutional stereotactic body radiation therapy (SBRT) series (time interval 2004-2014), treated with prescription BED (at 80%) in the range 100-120 Gy. The first 95 patients (2004-2010) were planned with 3D-CRT, with a stereotactic body frame.

Spectroscopic Discrimination of Diastereomeric Complexes Involving an Axially Chiral Receptor.

The infrared multiphoton dissociation (IRMPD) spectra of electrospray ionization (ESI)-formed proton-bound complexes between the axially chiral multifunctional macrocycle M and d- and l-phenylalanine (P and P ) or d- and l-3,4-dihydroxyphenylalanine (D and D ) are recorded in the ν˜ =2800-3700 cm region. Whereas the diastereomeric [M ⋅H⋅P ] and [M ⋅H⋅P ] complexes do not show any significant spectral differences, the spectrum of [M ⋅H⋅D ] clearly diverges from that of its [M ⋅H⋅D ] diastereomer. A comparison of the experimental spectra with the B3LYP/6-31G**-calculated harmonic vibrational frequencies of a number of stable structures indicates the formation, in the ESI source, of very similar spectroscopically active structures, with the protonated amino acid placed outside the flat cavity of the macrocycle and hydrogen-bonded at its O center.

Beam-Target Helicity Asymmetry for γ[over →]n[over →]→π^{-}p in the N^{*} Resonance Region.

We report the first beam-target double-polarization asymmetries in the γ+n(p)→π^{-}+p(p) reaction spanning the nucleon resonance region from invariant mass W=1500 to 2300 MeV. Circularly polarized photons and longitudinally polarized deuterons in solid hydrogen deuteride (HD) have been used with the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab. The exclusive final state has been extracted using three very different analyses that show excellent agreement, and these have been used to deduce the E polarization observable for an effective neutron target.

Risk indicators of early childhood caries (ECC) in children with high treatment needs.

Early childhood caries (ECC) represents a major health and economic problem worldwide. Its consequences such as early pain experience may affect the immediate and long-term quality of life of the child. In very young and uncooperative children the therapy of ECC is often viable only under general anesthesia.