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https://www.readbyqxmd.com/read/28547659/quiescent-adult-stem-cells-in-murine-teeth-are-regulated-by-shh-signaling
#1
Yuko Ishikawa, Mitsushiro Nakatomi, Hiroko Ida-Yonemochi, Hayato Ohshima
The mechanisms regulating the maintenance of quiescent adult stem cells in teeth remain to be fully elucidated. Our aim is to clarify the relationship between BrdU label-retaining cells (LRCs) and sonic hedgehog (Shh) signaling in murine teeth. After prenatal BrdU labeling, mouse pups were analyzed during postnatal day 1 (P1) to week 5 (P5W). Paraffin sections were processed for immunohistochemistry for BrdU, Sox2, Gli1, Shh, Patched1 (Ptch1) and Ki67 and for in situ hybridization for Shh and Ptch1. Dense LRCs, Gli1-(+) cells and Ptch1-(+) cells were co-localized in the outer enamel epithelium of the apical bud and apical dental papilla of incisors...
May 26, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28538231/informal-peer-assisted-learning-groups-did-not-lead-to-better-performance-of-saudi-dental-students
#2
Maha AbdelSalam, Maha El Tantawi, Asim Al-Ansari, Adel AlAgl, Fahad Al-Harbi
OBJECTIVES: To describe peer-assisted learning (PAL) groups formed by dental undergraduate students in a biomedical course and investigate the association of individual and group characteristics with academic performance. SUBJECTS AND METHODS: In 2015, 92 4th yr. students (males: 43; females: 49) in the College of Dentistry, University of Dammam, Saudi Arabia were invited to form PAL groups to study a unit in a biomedical course. An examination was used to assess their knowledge after two weeks...
May 23, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/28527846/characterization-of-dental-pulp-myofibroblasts-in-rat-molars-after-pulpotomy
#3
Naoki Edanami, Nagako Yoshiba, Naoto Ohkura, Ryosuke Takeuchi, Aiko Tohma, Yuichiro Noiri, Kunihiko Yoshiba
INTRODUCTION: Myofibroblasts express alpha smooth muscle actin (α-SMA) and play a critical role in wound healing. Myofibroblast differentiation is controlled by the joint actions of transforming growth factor beta 1 (TGF-β1) and the extradomain A fibronectin splice variant (EDA-FN). Currently, the contribution of myofibroblasts to dental pulp healing is unknown. Therefore, we analyzed expressional characteristics of α-SMA-positive cells and investigated TGF-β1, EDA-FN, and α-SMA expression levels after pulpotomy to better understand dental pulp healing...
May 17, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28524327/evaluation-of-a-multi-methods-approach-to-the-collection-and-dissemination-of-feedback-on-osce-performance-in-dental-education
#4
M J Wardman, V C Yorke, J L Hallam
INTRODUCTION: Feedback is an essential part of the learning process, and students expect their feedback to be personalised, meaningful and timely. Objective Structured Clinical Examination (OSCE) assessments allow examiners to observe students carefully over the course of a number of varied station types, across a number of clinical knowledge and skill domains. They therefore present an ideal opportunity to record detailed feedback which allows students to reflect on and improve their performance...
May 19, 2017: European Journal of Dental Education: Official Journal of the Association for Dental Education in Europe
https://www.readbyqxmd.com/read/28514054/how-do-educators-in-one-new-zealand-undergraduate-bachelor-of-oral-health-course-teach-and-nurture-professionalism
#5
L Smith, L Adam, S Moffat, A Meldrum, R Ahmadi
INTRODUCTION: Research on integrated dental hygiene and dental therapy courses is scarce; studies reporting on how staff in these combined scope courses teach professionalism are even more scarce. This study aimed to partially fill these research gaps. METHOD AND MATERIALS: In 2016, online surveys were sent to 34 staff members who taught into the integrated Bachelor of Oral Health (BOH) course at the University of Otago's Faculty of Dentistry; 13 were returned. Two focus groups were conducted with six BOH educators...
May 17, 2017: European Journal of Dental Education: Official Journal of the Association for Dental Education in Europe
https://www.readbyqxmd.com/read/28512547/vascular-labeling-of-the-head-and-neck-vessels-technique-advantages-and-limitations
#6
Alba Gálvez, José-Leonardo Caraballo, María-Cristina Manzanares-Céspedes, Iván Valdivia-Gandur, Rui Figueiredo, Eduard Valmaseda-Castellón
BACKGROUND: Vascular staining techniques have been used to describe the vascular structures of several anatomic areas. However, few reports have described this procedure in the head and neck region. This paper describes a head and neck vascular labeling procedure, and describes some of the technical complications that may occur. MATERIAL AND METHODS: Fifteen specimen cadaver heads were prepared. After drying the vascular system, the internal carotid arteries were ligated and a solution with latex and a gelling agent was injected into the internal carotid arteries and external jugular veins...
May 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28512486/students-knowledge-comprehension-after-implementation-of-live-conventional-demonstration-video-teaching-and-video-assisted-instruction-methods-in-endodontic-practice
#7
Nahid Mohammadzadeh Akhlaghi, Zohreh Khalilak, Mehdi Vatanpour, Amirabbas Moshari, Saman Ghaffari, Mohammad Sadegh Namazikhah
INTRODUCTION: Video-assisted clinical instruction (VACID) has been found to be a beneficial teaching tool for various fields in dentistry. The aim of this interventional study was to compare the efficacy of live conventional demonstration (CD), video teaching, and VACID (video with explanation) methods in teaching of root canal treatment to undergraduate dental students. METHODS AND MATERIALS: Forty-two undergraduate senior dental students participated in this study...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28496255/enhanced-skills-in-periodontology-evaluation-of-a-pilot-scheme-for-general-dental-practitioners-and-dental-care-professionals-in-london
#8
S G Ghotane, V Harrison, E Radcliffe, E Jones, J E Gallagher
Background The need for periodontal management is great and increasing; thus, the oral and dental workforce should be suitably equipped to deliver contemporary care. Health Education London developed a training scheme to extend the skills of dentists and dental care professionals (DCPs).Aim To examine the feasibility of assessing a skill-mix initiative established to enhance skills in clinical periodontology involving the views of patients, clinicians and key stakeholders, together with clinical and patient outcomes in London...
May 12, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28493628/the-confidence-of-undergraduate-dental-students-when-carrying-out-prosthodontic-treatment-and-their-perception-of-the-quality-of-prosthodontic-education
#9
J Puryer, K Woods, J Terry, J Sandy, A J Ireland
INTRODUCTION: Despite the falling number of edentulous patients within the UK, there is still a large demand for the provision of removable prostheses. On qualification, dentists should have the knowledge and skills to provide these prostheses, but previous studies have shown that final-year dental undergraduate confidence in treating denture patients is lacking. AIM: To explore undergraduate dental student confidence whilst carrying out prosthodontic treatment, and to explore their perceptions of the quality of their prosthodontic education...
May 11, 2017: European Journal of Dental Education: Official Journal of the Association for Dental Education in Europe
https://www.readbyqxmd.com/read/28492195/evaluation-of-nitrous-oxide-oxygen-and-triclofos-sodium-as-conscious-sedative-agents
#10
Priya Subramaniam, K L Girish Babu, Disha Lakhotia
BACKGROUND: Conscious sedation is used in the pediatric dentistry to reduce fear and anxiety in children and promote favorable treatment outcomes. To achieve them, the primary clinical need is for a well-tolerated, effective, and expedient analgesic and sedative agent that is safe to use. AIM: The aim of the present study was to evaluate the efficacy of nitrous oxide-oxygen and triclofos sodium as conscious sedative agents in 5-10-year-old children. METHODOLOGY: Sixty children aged 5-10 years showing anxious, uncooperative, and apprehensive behavior were randomly divided and assigned into two groups (Groups A and B) such that Group A received 40% nitrous oxide-60% oxygen and Group B received triclofos sodium in the dose of 70 mg/kg body weight, given 30 min before the treatment procedure...
April 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28490844/attitudes-of-dental-professional-staff-and-auxiliaries-in-riyadh-saudi-arabia-toward-disclosure-of-medical-errors
#11
Nora S Al-Nomay, Abdulghani Ashi, Aljohara Al-Hargan, Abdulaziz Alshalhoub, Emad Masuadi
AIM: To collect empirical data on the attitudes of dental professionals and dental auxiliaries in Riyadh, Saudi Arabia, regarding the disclosure of medical errors. METHODS: A cross-sectional study was conducted, involving the administration of a questionnaire to a sample of 586 participants recruited from over 10 government and private dental institutions in Riyadh between August 2015 and January 2016. The questionnaire collected information regarding participant opinions on (a) personal beliefs, norms, and practices regarding medical errors, (b) the nature of errors that should be disclosed, and (c) who should disclose errors...
April 2017: Saudi Dental Journal
https://www.readbyqxmd.com/read/28481373/pilot-study-of-contact-sensitization-to-rubber-allergens-and-bisphenol-a-amongst-dental-students
#12
Maya Grigorievna Lyapina, Assya Krasteva, Maria Dencheva, Mariana Tzekova, Georgy Nikolov, Mariela Yaneva-Deliverska, Angelina Kisselova-Yaneva
OBJECTIVES: The aim of this study has been to evaluate the rate of contact sensitization to some rubber allergens and to bisphenol A (BPA) amongst students of dental medicine and dental patients. MATERIAL AND METHODS: A total of 50 participants were included in the study: 40 students of dental medicine exposed to the studied rubber allergens and BPA-based dental materials during the course of their education; 10 dental patients without occupational exposure to the latter substances served as a control group...
May 8, 2017: International Journal of Occupational Medicine and Environmental Health
https://www.readbyqxmd.com/read/28470893/gene-expression-in-peri-implant-crevicular-fluid-of-smokers-and-nonsmokers-1-the-early-phase-of-osseointegration
#13
Shariel Sayardoust, Omar Omar, Peter Thomsen
BACKGROUND: Smoking is a risk factor for dental implants. The mechanisms behind the impact of smoking on osseointegration are not fully understood. PURPOSE: To investigate the initial molecular and clinical course of osseointegration of different titanium implants in smokers and nonsmokers. MATERIALS AND METHODS: Smoker (n = 16) and nonsmoker (n = 16) patients were included. Each patient received three implant types: machined, oxidized and laser-modified surfaces...
May 3, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28461635/types-of-feedback-in-competency-based-predoctoral-orthodontics-effects-on-students-attitudes-and-confidence
#14
Mitchell J Lipp, Kiyoung Cho, Han Suk Kim
Feedback can exert a powerful influence on learning and achievement although its effect varies. The aim of this study was to investigate the effects of three types of feedback on dental students' attitudes and confidence in a competency-based course in predoctoral orthodontics at New York University College of Dentistry. In 2013-14, all 253 third-year students in a course using test-enhanced instructional methods received written feedback on formative assessments. The type of feedback varied across three groups: pass/fail grades (PF) N=77, emoticons (EM) N=90, or written comments (WC) N=86...
May 2017: Journal of Dental Education
https://www.readbyqxmd.com/read/28455694/increased-root-canal-endotoxin-levels-are-associated-with-chronic-apical-periodontitis-increased-oxidative-and-nitrosative-stress-major-depression-severity-of-depression-and-a-lowered-quality-of-life
#15
Cinthya Gomes, Frederico Canato Martinho, Décio Sabbatini Barbosa, Leonardo Santos Antunes, Helvécio Cardoso Corrêa Póvoa, Thiago Hissnauer Leal Baltus, Nayara Rampazzo Morelli, Heber Odebrecht Vargas, Sandra Odebrecht Vargas Nunes, George Anderson, Michael Maes
Evidence indicates that major depression is accompanied by increased translocation of gut commensal Gram-negative bacteria (leaky gut) and consequent activation of oxidative and nitrosative (O&NS) pathways. This present study examined the associations among chronic apical periodontitis (CAP), root canal endotoxin levels (lipopolysaccharides, LPS), O&NS pathways, depressive symptoms, and quality of life. Measurements included advanced oxidation protein products (AOPP), nitric oxide metabolites (NOx), lipid peroxides (LOOH), -sulfhydryl (SH) groups, total radical trapping antioxidant parameter (TRAP), and paraoxonase (PON)1 activity in participants with CAP, with and without depression, as well as healthy controls (no depression, no CAP)...
April 28, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28435360/the-confidence-of-undergraduate-dental-students-in-saudi-arabia-in-performing-endodontic-treatment
#16
Mothanna Alrahabi
OBJECTIVE: This study examined the endodontic experience, perceptions of endodontic practice, and self-rated confidence of dental students enrolled in Taibah University, Saudi Arabia. MATERIALS AND METHODS: A questionnaire was distributed to 41 undergraduate dental students registered in endodontic courses in the 2015 academic year. The questionnaire evaluated their confidence performing nonsurgical root canal treatment. The level of confidence was classified using a 5-point scale as "very confident," "confident," "neutral," "not very confident," or "not at all confident...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28422594/intentional-replantation-of-an-immature-incisor-with-a-transverse-root-fracture-and-endo-perio-condition-4-year-follow-up
#17
Atsushi Oishi
This case report describes the importance of continual examination for dental trauma and the efficacy of intentional replantation with retrograde root canal filling for a transverse root fracture in an immature incisor accompanied by subsequent periodontal-endodontic disease. In the treatment of traumatically fractured roots in immature incisors, continual examination is indispensable for the final diagnosis because roots in immature teeth are less calcified, resulting in less detailed radiological examinations...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28418416/-dental-treatment-of-fearful-children-subjection-denyal-or-guidance
#18
M C M van Gemert-Schriks, M M Bildt
Dental treatment anxiety is a common fear among children. The dental health care provider is faced with difficult dilemmas about ensuring good oral health for these children in general daily practice. The indicated treatment usually exceeds the capacity of the frightened child, but when treatment is not performed, the child is at risk of serious general health problems and its quality of life could diminish. This article provides an overview of the aetiology of dental treatment anxiety in children. In addition, the dental practitioner is provided with insight into the possibilities that allow him/her to enhance the treatability of the child and reduce anxiety to such an extent that the indicated dental care can be provided...
April 2017: Nederlands Tijdschrift Voor Tandheelkunde
https://www.readbyqxmd.com/read/28413735/a-survey-of-handwashing-knowledge-and-attitudes-among-the-healthcare-professionals-in-lahore-pakistan
#19
Ahsan Zil-E-Ali, Mohsin A Cheema, Muhammad Wajih Ullah, Hamzah Ghulam, Mariam Tariq
OBJECTIVE: To evaluate the knowledge and attitudes towards handwashing of clinical year medical and dental students and health-care professionals (HCPs) working in the departments of medicine, surgery, dentistry, nursing, and physiotherapy in Lahore, Pakistan. METHODOLOGY: This was a cross-sectional survey conducted during May and June 2016. After approval from the institutional review board, a modified form of the World Health Organization (WHO) Hand Hygiene Knowledge Questionnaire for Healthcare workers that included 18 items was sent to 400 clinical year students and HCPs from six medical colleges and affiliated hospitals of Lahore...
March 9, 2017: Curēus
https://www.readbyqxmd.com/read/28399716/the-lgbtqi-health-forum-an-innovative-interprofessional-initiative-to-support-curriculum-reform
#20
Hannan M Braun, David Ramirez, Greg J Zahner, Eva Mae Gillis-Buck, Heather Sheriff, Marcus Ferrone
Lesbian, gay, bisexual, transgender, queer, and intersex (LGBTQI) individuals continue to face barriers to accessing appropriate and comprehensive healthcare. Compounding this problem, healthcare trainees report few training opportunities and low levels of preparedness to care for LGBTQI patients. In 2009, an interprofessional group of students and a faculty advisor at the University of California, San Francisco, developed a novel student-organized LGBTQI Health Forum for medical, dental, pharmacy, nursing, and physical therapy students to deliver LGBTQI health content that was otherwise absent from the formal curriculum...
2017: Medical Education Online
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