Effects of different universal adhesives and surface treatments on repair bond strength between resin composites

alexandrossfakianakis shared this article with you from Inoreader Effects of different universal adhesives and surface treatments on repair bond strength between resin composites via Journal of Esthetic and Restorative Dentistry Abstract Objective This study aimed to evaluate the effects of different universal adhesives and surface treatments on the repair bond strength between resin composites. Materials and Methods A total of 220 composite samples were divided into three groups according to the adhesive resin to be applied: 1) Scotchbond Universal, 2) G-Premio Bond, and 3) Peak Universal Bond. They were then divided into seven subgroups according to surface treatments (n = 10): A) air abrasion, B) air abrasion+silane, C) hydrofluoric acid, D) hydrofluoric acid+silane, E) air abrasion+hydrofluoric acid+silane, F) silane, and G) no surface treatment (negative control). After surface treatment, a repair composite was applied. Samples aged in the thermocycle were subjected to micro-tensile bond strength testing. Cohesive strength values of 10 non-aged composite blocks were used as a positive control. Kruskal–Wallis and one-way ANOVA tests were used for statistical evaluation. Fractured surfaces were evaluated using a scanning electron microscope. Results In Scotchbond Universal and G-Premio Bond, the mean micro-tensile bond strength value of the no surface treatment subgroup was significantly lower than that of the positive control. All subgroups of Peak Universal Bond showed similar values to the positive control. Conclusion While Scotchbond Universal and G-Premio Bond required mechanical roughening before adhesive application, Peak Universal Bond did not require any surface treatment. Clinical Significance Different universal adhesives may show different repair bonding strengths with different surface treatments. Since achieving a standard in this regard can be associated with many independent factors, clinicians should determine how to apply the adhesive they use most effectively with the most appropriate surface treatment based on their own clinical experience. View on Web

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The Conventional Technique Versus the No-touch Isolation Technique for Primary Tumor Resection in Patients With Colon Cancer (JCOG1006): A Multicenter, Open-label, Randomized, Phase III Trial

alexandrossfakianakis shared this article with you from Inoreader The Conventional Technique Versus the No-touch Isolation Technique for Primary Tumor Resection in Patients With Colon Cancer (JCOG1006): A Multicenter, Open-label, Randomized, Phase III Trial via Annals of Surgery - Most Popular Articles Objective: This phase III trial evaluated whether the no touch was superior to the conventional in patients with cT3/T4 colon cancer. Background: No touch involves ligating blood vessels that feed the primary tumor to limit cancer cell spreading. However, previous studies did not confirm the efficacy of the no touch. Methods: This open-label, randomized, phase III trial was conducted at 30 Japanese centers. The eligibility criteria were histologically proven colon cancer; clinical classification of T3–4, N0–2, andM0; and patients aged 20 to 80years. Patients were randomized (1:1) to undergo open surgery with conventional or the no touch. Patients with pathological stage III disease received adjuvant capecitabine chemotherapy. The primary endpoint was disease-free survival (DFS) according to the intention-to-treat principle. Results: Between January 2011 and November 2015, 853 patients were randomized to the conventional group (427 patients) or the no touch group (426 patients). The 3-year DFS were 77.3% [95% confidence interval (CI) 73.1%–81.0%] and 76.2% (95% CI 71.9%–80.0%) in the conventional and no touch groups, respectively. The superiority of no touch was not confirmed: hazard ratio for DFS = 1.029 (95% CI 0.800– 1.324; 1-sided P = 0.59). Operative morbidity was observed in 31 of 427 conventional patients (7%) and 26 of 426 no touch patients (6%). All grade adverse events were similar between the conventional and no touch groups. No in-hospital mortality occurred in either group. Conclusion: The present study failed to confirm the superiority of the no touch. View on Web

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Relationship between meteorological factors, air pollutants and hand, foot and mouth disease from 2014 to 2020

alexandrossfakianakis shared this article with you from Inoreader Relationship between meteorological factors, air pollutants and hand, foot and mouth disease from 2014 to 2020 via Most Recent Articles: BMC Public Health Meteorological factors and air pollutants have been reported to be associated with hand, foot, and mouth disease (HFMD) epidemics before the introduction of vaccine. However, there is limited evidence for stud... View on Web

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Genome-wide DNA methylation profiling and exome sequencing resolved a long-time misdiagnosed case

alexandrossfakianakis shared this article with you from Inoreader Genome-wide DNA methylation profiling and exome sequencing resolved a long-time misdiagnosed case via Journal of Human Genetics - Issue - nature.com science feeds Journal of Human Genetics, Published online: 18 May 2022; doi:10.1038/s10038-022-01043-y Genome-wide DNA methylation profiling and exome sequencing resolved a long-time misdiagnosed case View on Web

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The influence of implant design on implant stability in low‐density bone under guided surgical template in inexperienced surgeons: A pilot randomized controlled clinical trial using resonance frequency analysis

alexandrossfakianakis shared this article with you from Inoreader The influence of implant design on implant stability in low‐density bone under guided surgical template in inexperienced surgeons: A pilot randomized controlled clinical trial using resonance frequency analysis via Clinical Implant Dentistry and Related Research Abstract Introduction There are several factors that greatly influence implant stability with implant design being a paramount factor; however, few studies investigate its impact. Aim To investigate the implant stability in relation to two different implant designs, a cylindrical shaped single-threaded design (CS/ST) and a tapered shaped double-threaded design (TS/DT) using resonance frequency analysis over the first 8 weeks after implantation. Materials and Methods Twenty-eight implants were randomly allocated using computer-generated random numbers into two groups and were placed as single tooth implant in the posterior arch in human jaw as specimens. iCAT™ CBCT scan (Hatfield, PA) was used to determine the bone density according to Misch's Bone classification. The osseotomy sites were prepared and implants were placed with guided surgical template by inexperienced surgeons which were prepared with the same implant planning software (3shape® implant studio). The implant stability was measured using the resonance frequency analysis Osstell® ISQ (Osstell AB, Sweden) on the implant level over the first 8 weeks at three different time intervals. A mean implant stability quotient (ISQ) value was recorded at each measurement time points. The first ISQ of each implant recorded at the time of implant placement were considered as baseline and were the so-called primary stability. Results All 28 dental implants were analyzed. A similar pattern of implant stability changes was observed in both implant designs. A significant decreased was found at the first 4 weeks after implantation (p < 0.05) before ascending to maximum cumulative stability by the eighth week (p < 0.05). Between the two groups, TS/DT group had a higher mean ISQ values than that of the CS/ST group at all three observation periods but did not reach statistical significance (p = 0.69). Regarding different types of bone, TS/DT showed a significant difference in mean ISQ values in D4 bone. To date, all 28 implants are in function with no failure/and or complications. Conclusions The difference in implant design did not significantly influence the implant stability. TS/DT shows superiority over CS/ST when placed in D4 bone and offer a significant advantage due to their positive bounce back of the ISQ values by the eighth week after implant installation. Clinical Trial Registration: TCTR20211020005. View on Web

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ORF8 protein of SARS‐CoV‐2 reduces male fertility in mice

alexandrossfakianakis shared this article with you from Inoreader ORF8 protein of SARS‐CoV‐2 reduces male fertility in mice via Journal of Medical Virology Abstract As one of the most rapidly evolving proteins of the genus Betacoronavirus, ORF8's function and potential pathological consequence in vivo are still obscure. In this study, we show that the secretion of ORF8 is dependent on its N-terminal signal peptide sequence and can be inhibited by ROS scavenger and ER-Golgi transportation inhibitor in cultured cells. To trace the effect of its possible in vivo secretion，we examined the plasma samples of COVID-19 convalescent patients and found that the patients aged 40 to 60 had higher antibody titers than those under 40. To explore ORF8's in vivo function, we administered the mice with ORF8 via tail-vein injection to simulate the circulating ORF8 in the patient. Although no apparent difference in body weight, food intake, and vitality was detected between vehicle- and ORF8-treated mice, the latter displayed morphological abnormalities of testes and epididymides, as indicated by the loss of the central ductal lumen accompanied by a decreased fertility in five-week-old male mice. Furthermore, the analysis of gene expression in the testes between vehicle- and ORF8-treated mice identified a decreased expression of Col1a1, the loss of which is known to be associated with mice's infertility. Although whether our observation in mice could be translated to humans remains unclear, our study provides a potential mouse model that can be used to investigate the impact of SARS-CoV-2 infection on the human reproductive system. This article is protected by copyright. All rights reserved. View on Web

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Temporomandibular disorder symptoms in young adults: Three‐dimensional impact on oral health‐related quality of life

alexandrossfakianakis shared this article with you from Inoreader Temporomandibular disorder symptoms in young adults: Three‐dimensional impact on oral health‐related quality of life via Journal of Oral Rehabilitation Abstract Objectives This study examined the three-dimensional impact of pain-related and/or intra-articular Temporomandibular disorder (TMD) symptoms and ascertained the inter-relationships between the functional, pain, and psychosocial aspects of oral health-related quality of life (OHRQoL). Methods Young adults were enlisted from a local university and TMD symptoms were assessed with the Diagnostic Criteria for TMDs Symptom Questionnaire (DC/TMD-SQ). Participants were stratified into those with no (NT), pain-related (PT), intra-articular (IT), and mixed (MT) TMD symptoms. OHRQoL was examined using the Oral Health Impact Profile-14 (OHIP-14), and dimensional effects (oral function [OF], orofacial pain [OP], and psychosocial impact [PI]) were established subsequently. Data were evaluated with Kruskal-Wallis, Dunn, and Wilcoxon signed-rank tests (α = 0.05). Results The mean age of the participants (n = 1205) was 19.7 ± 1.3 years (71.8% women). While 42.2% reported no TMD symptoms, 22.3%, 16.9%, and 18.5% had PT, IT, and MT accordingly. The MT, PT, and IT groups presented higher total OHIP-14 and dimension scores than the NT group (p <0.01). Scores were also significantly different between the MT and IT groups except for OF. For all TMD groups, the ranking of dimensional impact was OP > PI > OF, and associations between the OP and PI dimensions were the strongest (correlation coefficient [r s ] = 0.57-0.76). Conclusions Young adults with PT and/or IT symptoms have poorer OHRQoL, especially in the OP and PI dimensions, which were moderate to strongly correlated. The use of the three dental Patient-reported Outcome (dPRO) dimensions could provide construct equivalency among OHRQoL measures. View on Web

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Pembrolizumab und Cetuximab als therapeutische Optionen für adenoidzystische Karzinome des Kopf-Hals-Bereiches

alexandrossfakianakis shared this article with you from Inoreader Pembrolizumab und Cetuximab als therapeutische Optionen für adenoidzystische Karzinome des Kopf-Hals-Bereiches via Laryngo-Rhino-Otologie Laryngorhinootologie DOI: 10.1055/a-1830-8298 Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, Germany Article in Thieme eJournals: Table of contents  |  Full text View on Web

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Ergonomics in Otolaryngology: A Systematic Review and Meta‐analysis

alexandrossfakianakis shared this article with you from Inoreader Ergonomics in Otolaryngology: A Systematic Review and Meta‐analysis via The Laryngoscope Ergonomic stressors among otolaryngologists contribute to a high rate of WRMD across all subspecialties with notable impact on productivity, longevity, and quality of life. The overall proportion (95% confidence intervals [CI]) of general otolaryngologists reporting WRMD was 0.79 (0.66, 0.88) for any symptoms; 0.54 (0.40, 0.67) for neck symptoms; 0.33 (0.20, 0.49) for shoulder symptoms; and 0.49 (0.40, 0.59) for back symptoms. Objectives To determine the proportion of otolaryngologists with work-related musculoskeletal discomfort (WRMD) and to review objective ergonomic data that contribute to WRMD. Study Design Systematic review and meta-analysis. Methods A comprehensive search of the literature identified 1121 articles for initial review of which 19 (3563 participants) met criteria for qualitative discussion and eight (2192 participants) met criteria for meta-analysis. Random effects meta-analyses were used to estimate the proportion of otolaryngologists reporting WRMD. Results The overall proportion (95% confidence intervals [CI]) of general otolaryngologists reporting WRMD was 0.79 (0.66, 0.88) for any symptoms; 0.54 (0.40, 0.67) for neck symptoms; 0.33 (0.20, 0.49) for shoulder symptoms; and 0.49 (0.40, 0.59) for back symptoms. Surgeons performing primarily subspecialty cases had a lower estimated overall prevalence of WRMD versus those performing general ENT cases, however the odds ratio (OR) was not statistically significant (OR [95% confidence interval] 0.53 [0.22, 1.25]). 23%–84% of otolaryngologists underwent medical treatment for WRMD. 5%–23% took time off work and 1%–6% stopped operating completely as a result of WRMD. 23%–62.5% of otolaryngologists believed WRMD negatively impacted their quality of life. Objective measures of ergonomic posture indicate moderate to severe risk of injury during the routine clinic and surgical procedures with none found to be low risk. Conclusions Ergonomic stressors among otolaryngologists contribute to a high rate of WRMD across all subspecialties with notable impact on productivity, longevity, and quality of life. Laryngoscope, 2022 View on Web

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Chromosomal microarray analysis versus noninvasive prenatal testing in fetuses with increased nuchal translucency

alexandrossfakianakis shared this article with you from Inoreader Chromosomal microarray analysis versus noninvasive prenatal testing in fetuses with increased nuchal translucency via Journal of Human Genetics - Issue - nature.com science feeds Journal of Human Genetics, Published online: 17 May 2022; doi:10.1038/s10038-022-01041-0 Chromosomal microarray analysis versus noninvasive prenatal testing in fetuses with increased nuchal translucency View on Web

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