609 research outputs found
Hydroxyapatite Toothpaste On Caries Prevention In Children
Are Hydroxyapatite Toothpastes The Answer To Fluoride Free Patients?
Richardson, Samantha 1 and Vaughan, Kelly 2
Dental Hygiene Program, Virginia Commonwealth University
Abstract:
Objectives/Aims: With the rising trend to become more clean with our ingredient lists, we are facing more patients refusing fluoride treatments and fluoridated toothpastes. This trend has been prevalent in our younger generations due to parents only wanting the purest natural ingredients for their children and now declining fluoride application. The goal of this literature is to find a safe alternative toothpaste that will be just as effective as fluoride.
Methods: This review of literature has been developed from searching the PubMed database in order to find relevant research on hydroxyapatite toothpastes. Many of these studies were conducted to compare multiple name brand toothpastes including fluoride and their alternatives like hydroxyapatite toothpastes in order to determine their effects on caries prevention and remineralization.
Results: Toothpastes with hydroxyapatite as an active ingredient were found to not be inferior to fluoridated toothpastes in caries progression in children. Hydroxyapatite has a high safety profile and no risk of dental fluorosis, which is a major point for patients who refuse fluoride use.
Conclusion: Hydroxyapatite has been shown to reduce biofilm formation in children and a preventative measure for further demineralization and caries protection. Although these studies sound promising, there can be improvement by enlarging the subject population, increasing the studies period of time, and the subjects need to be representative of: location, age group, socioeconomic status, oral health status and oral health literacy.
Key Terms: hydroxyapatite toothpaste, hydroxyapatite, children, fluoride, fluoridated toothpaste, remineralization, caries, and demineralizationhttps://scholarscompass.vcu.edu/denh_student/1034/thumbnail.jp
Comparison of lumbar range of movement and lumbar lordosis in back pain patients and matched controls
Inconclusive findings have been shown in previous studies comparing lumbar range of movement (LROM) and lumbar lordosis between back pain patients and healthy subjects. In these studies, confounding variables such as age, gender, height, obesity, and pain level were usually not well controlled. The present study aimed to compare LROM and lumbar lordosis between back pain patients and matched controls. Fifteen male back pain patients and 15 age-, height-, obesity-, and physical activity-matched male controls were investigated. To minimize the effect of pain on the measurements, only patients with minimal or no pain at the time of testing were included in the study. Inclinometer technique was used for the evaluation of LROM in flexion, extension and lateral flexion as well as lumbar lordosis. A lumbar rotameter was used for measuring axial rotation. Pelvic motion was limited by a pelvic restraint device during LROM measurements. Results showed that there were no significant differences between the back pain and control groups in flexion, extension, lateral flexion and axial rotation LROM and also in lumbar lordosis. This may indicate that when a back pain patient is not in pain, LROM and lumbar lordosis may not be the measures that distinguish between back pain patients and subjects without back pain
Variability in the Deep Western Boundary Current in the equatorial Atlantic at 44°W
The variability of the North Atlantic Deep Water (NADW) was studied by ten hydrographic repeat sections taken along 44 degreesW off Brazil between September 1989 and March 1994. This data set allowed for the first time to describe the seasonal signal in the Deep Western Boundary Current at the equator from hydrographic data. Annual and semiannual layer thickness modulations were observed similar to such signals in transport time series, however with a time lag of 2 months. A comparison of the interannual variability of the Labrador Sea Water component of the NADW at 44 degreesW at the equator with the formation region indicated a time lag of 13 to 17 years. The effective spreading velocities in the Labrador Sea Water are in the range 2 to 5 cms(-1) for the tropical Atlantic Ocean
Building capacity for Quality Teaching Rounds – Victoria. Final report
The Australian Council for Educational Research (ACER) was commissioned by the Teachers and Teaching Research Centre (TTRC) at the University of Newcastle to conduct an independent randomised controlled trial (RCT), with the goal of examining effects of Quality Teaching Rounds (QTR) on student outcomes and teachers’ practice in Victorian high schools. A total of 19 schools participated in Quality Teaching Rounds in 2022, with 20 schools in the wait list control. Data were gathered in an ongoing manner during the evaluation with: Progressive Assessment Tests in Mathematics (PAT-M) and reading (PAT-R) – baseline and follow up; student self-efficacy and aspiration surveys – baseline and follow up; teacher surveys – one questionnaire administered every term; implementation fidelity check surveys for teachers to complete for each QT Round; and implementation fidelity checks with onsite visits from ACER staff for 33% of the treatment schools. Key findings include: The mixed model analysis showed that treatment was not a significant predictor of PAT-R and PAT-M outcomes. Differences in student responses to the self-efficacy and aspiration surveys were identified. The control group showed a significant increase in the level of education that they aspired to complete (p = 0.037). Teachers in the control group had statistically significant growth in teacher efficacy, while those in the treatment group showed statistically significant lower teacher student support. Within the QTR process, the longest time was spent on discussing the coding and the individual coding process. Key observations identified from analysis of the fidelity check data are: teacher stress due to high rates of absenteeism, varied use of the Classroom Practice Guide, and analytical conversations about some elements and terms
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Prevalence of macropod progressive periodontal disease ("lumpy jaw") in wild western grey kangaroos (Macropus fuliginosus)
Macropod Progressive Periodontal Disease (MPPD), colloquially referred to as “lumpy jaw”, is a commonly observed disease in captive macropods. However, the prevalence of this disease in the wild is largely unknown. A systematic study of MPPD in wild macropods would provide an indication of the endemic presence of this disease in wild populations, and could assist those managing disease in captive populations, by highlighting potential risk factors for disease development. Utilising kangaroos culled as part of a population management program, this study used visual observation and computer tomography (CT) of skulls to investigate the prevalence of MPPD in wild western grey kangaroos (Macropus fuliginosus) from the Perth metropolitan region, Western Australia. The sample suitable for visual and CT analysis comprised 121 specimens, 71 (58.7%) male and 50 (41.3%) female, with the mean age for all 121 specimens being 4.5 years (±2.63 SD). No evidence of MPPD was detected in any of the specimens examined. Overabundance may not be associated with the development of MPPD, as previously considered, and age-related factors should not be eliminated. This results may reflect low susceptibility to MPPD in western grey kangaroos, given low prevalence is reported in this species in captive populations. Further investigation into species-specificity is recommended, and should include samples with soft tissue to improve sensitivity of disease detection. Surveillance of MPPD in wild populations of macropods helps to improve our understanding of the biological significance, development and potential spread of this disease. Notably, this information may assist in the management of MPPD in captive populations, and may have a positive impact on both the welfare and conservation of macropods in captivity
Outcomes of 23- and 24-weeks gestation infants in Wellington, New Zealand: A single centre experience
Optimal perinatal care of infants born less than 24 weeks gestation remains contentious due to uncertainty about the long-term neurodevelopment of resuscitated infants. Our aim was to determine the short-term mortality and major morbidity outcomes from a cohort of inborn infants born at 23 and 24 weeks gestation and to assess if these parameters differed significantly between infants born at 23 vs. 24 weeks gestation. We report survival rates at 2-year follow-up of 22/38 (58%) at 23 weeks gestation and 36/60 (60%) at 24 weeks gestation. Neuroanatomical injury at the time of discharge (IVH ≥ Grade 3 and/or PVL) occurred in in 3/23 (13%) and 1/40 (3%) of surviving 23 and 24 weeks gestation infants respectively. Rates of disability at 2 years corrected postnatal age were not different between infants born at 23 and 24 weeks gestation. We show evidence that with maximal perinatal care in a tertiary setting it is possible to achieve comparable rates of survival free of significant neuroanatomical injury or severe disability at age 2 in infants born at 23-week and 24-weeks gestation
Interprofessional Education for Pre-Service School-Based Professionals: Faculty and Student Collaboration
Interprofessional collaboration is necessary for school-based professionals who provide services for students with disabilities. Most pre-service training, however, takes place in separate programs and does not afford students opportunities to learn effective collaborative techniques. This study examined the effects of a one-day interprofessional learning experience for pre-service school-based professionals. The goals were twofold: 1) increase students’ understanding of the core competencies for interprofessional collaborative practice (Interprofessional Education Collaborative, 2016) and 2) provide an opportunity for students to participate in interprofessional collaboration within a simulated school-based context. A mixed method design examined changes in students’ knowledge of the IPEC competencies. Students completed a modified version of the Attitudes Toward Health Care Teams Scale (ATHCT) and reflections of learning. Participants demonstrated significant increases in value of team, team efficiency, and shared leadership. Qualitative analysis of students’ responses to open-ended survey questions about the day revealed three major themes and two minor themes, which indicated increased understanding of three of the IPEC competencies (i.e., roles/responsibilities, interprofessional communication, and teams and teamwork). The findings suggest that pre-service training programs could use case-based learning to assist students in developing interprofessional collaboration skills
Brilliance of a fire: innocence, experience and the theory of childhood
This essay offers an extensive rehabilitation and reappraisal of the concept of childhood innocence as a means of testing the boundaries of some prevailing constructions of childhood. It excavates in detail some of the lost histories of innocence in order to show that these are more diverse and more complex than established and pejorative assessments of them conventionally suggest. Recovering, in particular, the forgotten pedigree of the Romantic account of the innocence of childhood underlines its depth and furnishes an enriched understanding of its critical role in the coming of mass education - both as a catalyst of social change and as an alternative measure of the child-centeredness of the institutions of public education. Now largely and residually confined to the inheritance of nursery education, the concept of childhood innocence, and the wider Romantic project of which it is an element, can help question the assumptions underpinning modern, competence-centred philosophies of childhood
Mendeley readership counts: An investigation of temporal and disciplinary differences
This is an accepted manuscript of an article published by Taylor and Francis in Journal of the Association for Information Science and Technology on 05/06/2015, available online: https://doi.org/10.1002/asi.23559
The accepted version of the publication may differ from the final published version
GRB060614: a "fake" short GRB from a merging binary system
(Shortened) CONTEXT: [...] GRB060614 is the first nearby long duration GRB
clearly not associated to a bright Ib/c supernova. Moreover, its duration
(T_{90} ~ 100s) makes it hardly classifiable as a short GRB. It presents strong
similarities with GRB970228, the prototype of the new class of "fake" short
GRBs that appear to originate from the coalescence of binary neutron stars or
white dwarfs spiraled out into the galactic halo. AIMS: Within the "canonical"
GRB scenario based on the "fireshell" model, we test if GRB060614 can be a
"fake" or "disguised" short GRB. [...] METHODS: We fit GRB060614 light curves
in Swift's BAT (15-150keV) and XRT (0.2-10keV) energy bands. Within the
fireshell model, light curves are formed by two well defined and different
components: the Proper-GRB (P-GRB), emitted at the fireshell transparency, and
the extended afterglow, due to the interaction between the leftover accelerated
baryonic and leptonic shell and the CBM. RESULTS: We determine the two free
parameters describing the GRB source within the fireshell model. [...] A small
average CBM density [...] is inferred, typical of galactic halos. The first
spikelike emission is identified with the P-GRB and the following prolonged
emission with the extended afterglow peak.[...] CONCLUSIONS: The anomalous
GRB060614 finds a natural interpretation within our canonical GRB scenario: it
is a "disguised" short GRB. [...] This result points to an old binary system,
likely formed by a white dwarf and a neutron star, as the progenitor of
GRB060614 and well justify the absence of an associated SN Ib/c. Particularly
important for further studies of the final merging process are the temporal
structures in the P-GRB down to 0.1s.Comment: 7 pages, 5 figures, to appear on Astronomy & Astrophysics. This new
version fixes a typo in one label of Fig.
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