Publications by authors named "Brunton P"

Aim: To provide a socio-demographic profile of Asian students enrolled in their first year of a health professional programme in polytechnics and universities in Aotearoa New Zealand and to explore differences in enrolment rates (ERs) within Asian sub-groups and by socio-economic deprivation, citizenship status, urban/rural location and gender.

Methods: Ethnic group/sub-group and socio-demographic characteristics of students enrolling within 21 health professional programmes were collected and averaged over 5 years (2016-2020). Age- and ethnicity-matched denominator data from the 2018 Census were used to calculate yearly ERs and ratios (ERR) using generalised linear modelling with the European ethnic group as the reference.

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Oral mucositis (OM) remains a debilitating side effect in patients undergoing cancer therapy. DNA damage and oxidative stress generated by radiation and/or chemotherapy activate key inflammatory pathways, ultimately resulting in the destruction of the epithelial barrier, leading to microbial colonization, and ulceration. These ulcerative lesions are often extremely painful, compromising nutrition and oral hygiene, requiring intravenous nutritional support, resulting in longer periods of hospitalization and increased cost.

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To ensure the unrestricted expression of maternal behaviour peripartum, activity of the corticotropin-releasing factor (CRF) system needs to be minimised. CRF binding protein (CRF-BP) might be crucial for this adaptation, as its primary function is to sequester freely available CRF and urocortin1, thereby dampening CRF receptor (CRF-R) signalling. So far, the role of CRF-BP in the maternal brain has barely been studied, and a potential role in curtailing activation of the stress axis is unknown.

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Prenatal stress programmes long-lasting neuroendocrine and behavioural changes in the offspring. Often this programming is maladaptive and sex specific. For example, using a rat model of maternal social stress in late pregnancy, we have demonstrated that adult prenatally stressed male, but not prenatally stressed female offspring display heightened anxiety-like behaviour, whereas both sexes show hyperactive hypothalamo-pituitary-adrenal (HPA) axis responses to stress.

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Objective: To investigate the effect of tooth whitening on biomechanical properties of vacuum-formed retainers (VFRs).

Methods: Using a split-mouth, randomised controlled trial design, thirty participants were randomly allocated to receive whitening on either the upper or the lower arch, using 10 % carbamide peroxide for two weeks. Biomechanical properties such as hardness, tensile strength, and surface roughness were assessed two weeks after whitening was completed.

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Objectives: This study aimed to compare changes in oral health-related quality of life (OHRQoL) resulting from three vital tooth bleaching protocols.

Methods: The participants (n = 105) were randomly assigned to one of three vital bleaching treatment groups: home bleaching (HB), in-office bleaching (IOB), or combined bleaching (CB). HB involved the use of custom-made trays and 10% carbamide peroxide for a 14-day treatment period.

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Background: Oral mucositis remains a significant complication during cancer therapy with no effective treatment. Gold nanoparticles offer anti-inflammatory, antioxidant properties with low toxicity. This study systematically reviews the literature assessing gold nanoparticles in the management of oral mucositis in animal models.

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Article Synopsis
  • The study analyzed the socio-demographic profile of medical students in New Zealand from 2016 to 2020, focusing on factors like gender, ethnicity, and socioeconomic background.
  • The findings revealed that 59.1% of the enrolled students were women, but there were significant disparities with Māori and Pacific students being underrepresented and lower enrollment rates from rural areas.
  • The authors recommend policy changes to better reflect the diverse communities these students will eventually serve, suggesting a need for more inclusive selection processes and a commitment to Indigenising education.
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Article Synopsis
  • This systematic review aimed to assess the accuracy of dental implant impressions using digitally coded healing abutments (CHAs) against conventional impression techniques.
  • The review analyzed seven articles published between January 2010 and November 2022, focusing on the comparison of CHA impressions with conventional methods and examining variations in angulation and height within the CHA group.
  • Results indicated that elastomeric impressions of CHAs were less accurate compared to conventional techniques, while intraoral scans of CHAs showed improved accuracy; further research is necessary before endorsing CHAs for all types of multiple implant restorations.
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According to the World Health Organisation, approximately 1.3 billion people worldwide experience substantial disability due to physical, mental or sensory impairment. People with special needs require special consideration and more time or altered delivery methods when receiving dental treatments.

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Statement Of Problem: More conservative restorative approaches have been advocated for nonvital anterior teeth as an alternative to complete coverage crowns to maximize the preservation of tooth structure. Systematic reviews that investigated factors influencing the success rate of porcelain veneers on endodontically treated anterior teeth are lacking.

Purpose: The purpose of this systematic review was to investigate factors influencing the success rate of porcelain veneers on endodontically treated anterior teeth.

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The high aesthetic demands of patients have increased their requests to align their teeth using clear aligners, including Invisalign. Patients also want to have their teeth whitened for the same purpose; the use of Invisalign as a bleaching tray at night has been reported in few studies. However, whether 10% carbamide peroxide affects the physical properties of Invisalign is unknown.

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Objectives: To provide a sociodemographic profile of students enrolled in their first year of a health professional pre-registration programme offered within New Zealand (NZ) tertiary institutions.

Design: Observational, cross-sectional study. Data were sought from NZ tertiary education institutions for all eligible students accepted into the first 'professional' year of a health professional programme for the 5-year period 2016-2020 inclusive.

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Early-life stress can lead to detrimental offspring outcomes, including an increased risk for mood disorders and hypothalamic-pituitary-adrenal axis dysregulation. Neurosteroids bind to ligand-gated neurotransmitter receptors, rapidly modulating neuronal excitability and promoting termination of stress responses. Reduced neurosteroidogenesis underlies some of the aberrant neuroendocrine and behavioural phenotypes observed in adult prenatally stressed rodents.

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Stress during pregnancy negatively affects the fetus and increases the risk for affective disorders in adulthood. Excess maternal glucocorticoids are thought to mediate fetal programming; however, whether they exert their effects directly or indirectly remains unclear. During pregnancy, protective mechanisms including maternal hypothalamic-pituitary-adrenal (HPA) axis hyporesponsiveness and placental 11β-hydroxysteroid dehydrogenase (11βHSD) type 2, which inactivates glucocorticoids, limit mother-to-fetus glucocorticoid transfer.

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Introduction: An increasingly older population demands major remodeling of our health care system. Older adults are most likely to be affected by the oral-systemic connection due to their impairment in functional capacity and reduced ability to undertake routine oral care. An economic way to improve oral health outcomes in older populations is by involving nurses and caregivers in ensuring the maintenance of oral health for older adults.

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This case study explored how human-centred design methodologies can improve clinician experience and reduce patient treatment anxiety in the application of a new dental local anaesthetic jet-injection system. An initial embodiment of the prototype injector, dubbed the 'Kiwi' injector, was developed to better understand the user experience during dental-injection procedures. Further design development was undertaken in two distinct phases.

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The aims of this study were to investigate the clinical effectiveness and patient acceptability of a modified glass ionomer cement placed using the atraumatic restorative treatment (ART) technique to treat root caries, and to carry out microbiological analysis of the restored sites. Two clinically visible root surface carious lesions per participant were restored using ART. One was restored with commercial glass ionomer cement (GIC) (ChemFil Superior, DENTSPLY, Konstonz, Germany) which acted as the control.

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Objectives: We evaluated patient preference and reported levels of anxiety and discomfort of participants treated with a new needle-free electric motor-driven device vs. conventional local anaesthetic for dental extractions in a proof-of-principle study. Healing and response of gingival tissues to injection were also evaluated at 1, 3- and 7-days post-procedure.

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Objectives: Oral health self-care deteriorates in older adults due to a decreasing level of cognition increasing disability and/or a reduction in manual dexterity. Older adults in hospital care or residential care therefore increasingly need assistance for oral health care. There is an increase in dentate patients entering residential care due to advances in dentistry.

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Aim: To evaluate efficacy and safety of Botulinum toxinA for improving esthetics in the facial complex and correlating them to the dosage and side effects through a systematic review.

Methods: A literature search was performed using PubMed, Medline, Web of Sciences, and Scopus databases. Quality of studies was appraised through the GRADE system.

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Calcium phosphate compounds form the inorganic phases of our mineralised tissues such as bone and teeth, playing an important role in hard tissue engineering and regenerative medicine. In dentistry and oral care products, hydroxyapatite (HA) is a stable and biocompatible calcium phosphate with low solubility being used for various applications such as tooth remineralisation, reduction of tooth sensitivity, oral biofilm control, and tooth whitening. Clinical data on these products is limited with varied results; additionally, the effectiveness of these apatite compounds versus fluoride, which has conventionally been used in toothpaste, has not been established.

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The dimensions of patient-centred care include not only clinical effectiveness and patient safety, but, importantly, the preferences of patients as consumers of healthcare services. A total of 249 participants were included in the study, with a balanced population proportional representation by age, gender, ethnicity and geographic region of New Zealand. An online questionnaire was used to identify participants' decision-making process, and what factors and barriers for participants to seek dental treatment.

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