keyword
https://read.qxmd.com/read/38221549/the-effect-of-enhanced-structure-in-the-posterior-segment-of-clear-aligners-during-anterior-retraction-a-three-dimensional-finite-element-and-experimental-model-analysis
#1
JOURNAL ARTICLE
Xiaohan Jin, Xue Tian, Victoria Lee Zhi Hui, Yikan Zheng, Jinlin Song, Xianglong Han
BACKGROUND: Mesial tipping of posterior teeth occurs frequently during space closure with clear aligners (CAs). In this study, we proposed a new modification of CA by localized thickening of the aligner to form the enhanced structure and investigate its biomechanical effect during anterior retraction. METHODS: Two methods were employed in this study. First, a finite element (FE) model was constructed, which included alveolar bone, the first premolars extracted maxillary dentition, periodontal ligaments (PDL), attachments and aligners...
January 15, 2024: Progress in Orthodontics
https://read.qxmd.com/read/38184927/the-effect-of-virtual-reality-on-pain-fear-and-emotional-appearance-during-blood-draw-in-pediatric-patients-at-the-hematology-oncology-outpatient-clinic-a-randomized-controlled-study
#2
JOURNAL ARTICLE
Nazmi Kanad, Gülçin Özalp Gerçeker, İbrahim Eker, Hilal Şen Susam
OBJECTIVE: Invasive attempts can be very painful and stressful for pediatric patients. Virtual Reality (VR) can be used to distract patients undergoing such procedures in pediatric hematology oncology patients. METHODS: A parallel trial design approach was adopted for this randomized controlled trial, guided by the CONSORT checklist. The study sample (n = 69) was divided into a VR group (n = 34) and a control group (n = 35) using stratified randomization...
December 26, 2023: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
https://read.qxmd.com/read/38108674/dynamic-biomechanical-changes-of-clear-aligners-during-extraction-space-closure-finite-element-analysis
#3
JOURNAL ARTICLE
Yi-Gan Wang, Guan-Yin Zhu, Jun-Qi Liu, Yi-Fan Wang, Zhi-He Zhao
INTRODUCTION: Clear aligners (CAs) have recently become popular and widely used orthodontic appliances. Research on CA biomechanics has become a focal point in orthodontics to improve the efficiency of CA treatment and address challenging issues, such as extraction. The biomechanical characteristics of CAs in space closure have been reported. However, previous studies have mainly focused on static biomechanical analysis that cannot demonstrate the dynamic biomechanical changes in CAs during space-closing...
December 18, 2023: American Journal of Orthodontics and Dentofacial Orthopedics
https://read.qxmd.com/read/38076301/chronic-subdural-haematoma-a-case-series-of-uncommon-presentations-of-a-common-disease
#4
Uchenna Ajoku, Linda Iroegbu-Emeruem
Chronic subdural haematoma is a common neurological condition especially among the elderly population. Its presentation can be unspecific but often attributed to pressure, cortical irritation, and/or vascular compromise. In the patients' cohort presented below, we have a series of cases where clinical history and examination did not result in an initial clinical diagnosis or suspicion of chronic subdural haematoma, with the diagnosis made only after brain imaging. We reviewed the literature regarding the aetiopathogenesis and clinical features of our patient cohort, which included a young woman with isolated right ptosis and pupillary dilatation, an elderly man with paraplegia, another elderly man with isolated right foot drop, and a young military man with no history of trauma...
December 2023: Journal of Surgical Case Reports
https://read.qxmd.com/read/38074248/a-retrospective-analysis-of-the-trends-in-modern-contraceptive-use-among-adolescents-and-young-women-15-24-years-in-the-democratic-republic-of-the-congo-in-the-last-two-decades
#5
JOURNAL ARTICLE
Freddy R Kaniki, Olaniyi F Sanni, Kirota N Kyampof, Sebitereko R Lazare
INTRODUCTION: The increasing rate of unsafe abortion among adolescents and young women (AYW) in Sub-Saharan Africa may be attributed to a high rate of undesirable pregnancies and limited access to contraception services. The study looked at the prevalence of current contraception use among young women (15-24 years old) in the Democratic Republic of the Congo (DRC). METHODS: The study analyzed secondary data from the demographic health survey (DHS) and UNICEF concerning AYW aged 15-24 years using IBM Corp...
October 2023: Journal of Family Medicine and Primary Care
https://read.qxmd.com/read/38054425/menopausal-hormone-therapy-and-coronary-heart-disease-the-roller-coaster-history
#6
REVIEW
M Nudy, J Buerger, S Dreibelbis, X Jiang, H N Hodis, P F Schnatz
In the USA it is estimated that more than one million women become menopausal each year. Coronary heart disease (CHD) is the leading cause of mortality in menopausal woman globally. The majority of perimenopausal to postmenopausal women experience bothersome symptoms including hot flashes, night sweats, mood liability, sleep disturbances, irregular bleeding and sexual dysfunction. While menopausal hormone therapy (HT) effectively treats most of these symptoms, use of HT has become confusing, especially related to CHD risk...
February 2024: Climacteric: the Journal of the International Menopause Society
https://read.qxmd.com/read/38024928/stop-antibiotic-resistance-a-roller-coaster-ride-through-antibiotic-stewardship-prescription-auditing-and-aware-assessment-tool
#7
REVIEW
Priyadharsini R Palanisamy
The emergence of superbugs and highly resistant organisms like methicillin-resistant staphylococci, vancomycin-resistant enterococci, carbapenem-resistant enterobacteriaceae demands the monitoring of antibiotic prescription and usage in various domains. The impact of antibiotic resistance is huge that it increases mortality, morbidity, and economic costs. The issue has to be addressed at various levels and that is why regulatory bodies implement antibiotic stewardship programs. These programs give a list of guidelines like infection control, tracking antibiotic use, prescription auditing, and involvement of health professionals like pharmacists, nurses, etc...
September 2023: Journal of Family Medicine and Primary Care
https://read.qxmd.com/read/38002004/from-living-in-saltwater-to-a-scarcity-of-salt-and-water-and-then-an-overabundance-of-salt-the-biological-roller-coaster-to-which-the-renin-angiotensin-system-has-had-to-adapt-an-editorial
#8
EDITORIAL
György L Nádasy, András Balla, Mária Szekeres
Angiotensin II (Ang II) is a hormone with much more complex actions than is typical for other agonists with heterotrimeric G protein-coupled receptors (GPCRs) [...].
November 9, 2023: Biomedicines
https://read.qxmd.com/read/37981597/the-displacement-of-teeth-and-stress-distribution-on-periodontal-ligament-under-different-upper-incisors-proclination-with-clear-aligner-in-cases-of-extraction-a-finite-element-study
#9
JOURNAL ARTICLE
Fujia Kang, Yumiao Wu, Yuchen Cui, Jiamin Yuan, Zhiqiang Hu, Xianchun Zhu
OBJECTIVES: To investigate the displacement of dentition and stress distribution on periodontal ligament (PDL) during retraction and intrusion of anterior teeth under different proclination of incisors using clear aligner (CA) in cases involving extraction of the first premolars. METHODS: Models were constructed, consisting of the maxilla, PDLs, CA and maxillary dentition without first premolars. These models were then imported to finite element analysis (FEA) software...
November 20, 2023: Progress in Orthodontics
https://read.qxmd.com/read/37896441/development-of-multifunctional-detection-robot-for-roller-coaster-track
#10
JOURNAL ARTICLE
Weike Song, Zhao Zhao, Kun Zhang, Huajie Wang, Yifeng Sun
Recent advances in roller coasters accelerate the creation of complex tracks to provide stimulation and excitement for humans. As the main load-bearing component, tracks are prone to damage such as loose connecting bolts, paint peeling, corroded sleeper welds, corroded butt welds, reduced track wall thickness and surface cracks under complex environments and long-term alternating loads. However, inspection of the roller coaster tracks, especially the high-altitude rolling tracks, is a crucial problem that traditional manual detection methods have difficulty solving...
October 10, 2023: Sensors
https://read.qxmd.com/read/37862878/virtual-reality-exposure-with-vibrotactile-stimulation-for-the-treatment-of-fear-of-flying-a-pilot-study
#11
REVIEW
J M Ribé-Viñes, J Gutiérrez-Maldonado, Zahra Zabolipour, M Ferrer-Garcia
BACKGROUND AND OBJECTIVES: Virtual reality (VR) interventions are becoming more prevalent in treating fear of flying (FoF). Since multisensory stimulation can enhance the sense of presence in a virtual environment, the present study compared virtual reality exposure with and without vibrotactile cues to determine its contribution to the realism of the virtual experience. METHODS: A repeated measures design was used. Thirty-one participants were exposed to two experimental conditions with a minimum of a one-week interval between them: one in which participants were exposed to the virtual environment with vibrotactile cues (smart chair, SC), and another in which participants were exposed to the virtual environment without vibrotactile cues (ordinary chair, OC)...
October 10, 2023: Journal of Behavior Therapy and Experimental Psychiatry
https://read.qxmd.com/read/37743501/a-diarized-journey-an-interpretative-phenomenological-analysis-of-the-older-person-s-lived-experience-of-a-hip-or-knee-replacement-within-a-fast-track-programme
#12
JOURNAL ARTICLE
Marisa Burger, Francois Watson, Annemarie van Wyk
BACKGROUND: For the older person living with end-stage hip or knee osteoarthritis, a hip or knee replacement can be a traumatic event, influencing the physical, physiological, psychological, social and economic facets of daily living. This interpretative phenomenological study aimed to reveal and interpret the daily lived experiences of the older person before, during and after a primary total hip or knee replacement surgery in a fast-track programme in South Africa. METHODS: A qualitative interpretive phenomenological study, collecting data through solicited diaries and reflexive member validation interviews from seven participants aged 65-75 years, who underwent a primary elective hip or knee replacement surgery...
September 25, 2023: BMC Geriatrics
https://read.qxmd.com/read/37694768/experiences-of-men-undergoing-assisted-reproductive-technology-a-qualitative-systematic-review
#13
REVIEW
Kia Min Hya, Zhongwei Huang, Crystal Min Siu Chua, Shefaly Shorey
BACKGROUND: Many infertile couples undergo assisted reproductive technology (ART) to increase pregnancy chances, with many of them experiencing psychosocial distress. Although research has been performed on women's experiences of ART, there is limited focus on men. OBJECTIVE: This systematic review consolidated and synthesized men's experiences with ART to better understand their needs and challenges to support them. SEARCH STRATEGY: Nine electronic databases were searched from the inception date until November 2022...
September 11, 2023: International Journal of Gynaecology and Obstetrics
https://read.qxmd.com/read/37579243/-what-if-caregivers-experiences-following-early-childhood-concussion
#14
JOURNAL ARTICLE
Dominique Dupont, Danaë Larivière-Bastien, Jeffrey G Caron, Cindy Beaudoin, Jocelyn Gravel, Isabelle Gagnon, Brett Burstein, Myriam Beaudin, Sean C Rose, Keith O Yeates, Miriam H Beauchamp
OBJECTIVE: Little is known about the symptoms, signs, and management guidelines for children under the age of 6 years after they sustain a concussion. Caregivers of such young children may have unique concerns and encounter different challenges from those of school-age children given the distinctive developmental characteristics of the early childhood period. This study aimed to explore the experience of caregivers through semistructured interviews to inform clinical practice. METHODS: Fifty caregivers of children aged 6 months to 5...
August 14, 2023: Journal of Pediatric Psychology
https://read.qxmd.com/read/37508793/physiological-signal-analysis-and-stress-classification-from-vr-simulations-using-decision-tree-methods
#15
JOURNAL ARTICLE
Syem Ishaque, Naimul Khan, Sridhar Krishnan
Stress is induced in response to any mental, physical or emotional change associated with our daily experiences. While short term stress can be quite beneficial, prolonged stress is detrimental to the heart, muscle tissues and immune system. In order to be proactive against these symptoms, it is important to assess the impact of stress due to various activities, which is initially determined through the change in the sympathetic (SNS) and parasympathetic (PNS) nervous systems. After acquiring physiological data wirelessly through captive electrocardiogram (ECG), galvanic skin response (GSR) and respiration (RESP) sensors, 21 time, frequency, nonlinear, GSR and respiration features were manually extracted from 15 subjects ensuing a baseline phase, virtual reality (VR) roller coaster simulation, color Stroop task and VR Bubble Bloom game...
June 26, 2023: Bioengineering
https://read.qxmd.com/read/37475987/innoculating-fandom-riding-the-roller-coaster-of-sports-during-the-pandemic
#16
JOURNAL ARTICLE
Walter Gantz, Lawrence Wenner
Using a critical events theoretic analytic lens, we argue that the Covid-19 pandemic had the disruptive power to shake the foundation of sports fanship, much as it affected all aspects of contemporary life across the globe. We conducted a survey of 613 adults in the United States, all of whom self-identified as sports fans. Sports fanship avidity dipped during the height of the pandemic when games, matches, and seasons were cancelled or conducted in protective bubbles without fans in the stands. That dip was temporary...
September 2023: American Behavioral Scientist
https://read.qxmd.com/read/37245688/steroids-in-severe-community-acquired-pneumonia-dangerous-worthless-or-miracle-cure-the-roller-coaster-of-clinical-trials
#17
EDITORIAL
Marwan Bouras, Jordi Rello, Antoine Roquilly
No abstract text is available yet for this article.
August 2023: Anaesthesia, Critical Care & Pain Medicine
https://read.qxmd.com/read/37203946/a-transitional-experience-basic-science-to-clinical-rotation
#18
JOURNAL ARTICLE
Bishal Pradhan, Prerana Singh Rokaha, Ashmina Lama
UNLABELLED: Bachelor of Medicine and Bachelor of Surgery is a roller coaster journey that is educational yet emotional. Because of how the context and responsibilities change throughout time, learning is exciting. Nevertheless, the exposure to basic science during this course teaches us to be diligent, committed, and compassionate, and it also gets us ready for the next stage of clinical practice. For us as students, the primary areas that change as a result of this transformation are professional networking, workload, patient interaction, time management, leadership, and communication skills...
March 1, 2023: JNMA; Journal of the Nepal Medical Association
https://read.qxmd.com/read/37144662/community-and-domestic-violence-are-associated-with-dna-methylation-grimage-acceleration-and-heart-rate-variability-in-adolescents
#19
JOURNAL ARTICLE
Nayara Cristina Dos Santos Oliveira, Seyma Katrinli, Simone Gonçalves de Assis, Alicia K Smith, Fernanda Serpeloni
Background: Cumulative exposure to violence can change the regulation of epigenetic and physiological markers. Although violence has been associated with accelerated cellular aging, little is known about associations with cardiac autonomic activity. Objective: The current study aimed to investigate the relationship of exposure to community and domestic violence (CDV) with vagal activity and epigenetic aging acceleration. Methods: A total of 86 adolescents (57% female) were evaluated and interviewed at two time-points in São Gonçalo (2014-2019), a Brazilian city with high levels of violence...
2023: European Journal of Psychotraumatology
https://read.qxmd.com/read/36964108/different-biomechanical-effects-of-clear-aligners-in-closing-maxillary-and-mandibular-extraction-spaces-finite-element-analysis
#20
JOURNAL ARTICLE
Jun-Qi Liu, Guan-Yin Zhu, Yi-Gan Wang, Bo Zhang, Ke Yao, Zhi-He Zhao
INTRODUCTION: Compared with fixed treatments, clear aligners (CAs) have the advantages of comfort, esthetics, and hygiene, and are popular among patients and orthodontists. However, CAs exhibit control deficiencies in extraction patients because of insufficient root control and retention effects. These deficiencies can magnify biomechanical differences in bimaxillary dentition, further causing different orthodontic requirements between maxillary and mandibular dentition. This study aimed to elaborate on the biomechanical characteristics of bimaxillary dentition in extraction space closure and provided feasible biomechanical compensation strategies for use in clinical practice...
March 22, 2023: American Journal of Orthodontics and Dentofacial Orthopedics
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