Canadian Journal of Dental Hygiene最新文献

Background: Recently, an increasing number of immigrants and asylum seekers and refugees (ASRs) have settled in both Canada and the United States. The poor oral health status prevalent among this population is a significant issue. Oral health professionals in both countries should understand newcomers' experiences with oral health care services to become more culturally competent. This narrative review aims to explore the experiences of immigrants and ASRs with oral health care in Canada and the United States and identify research gaps for future qualitative studies.

Methods: This review was conducted from January to April 2024 using Arksey and O'Malley's framework and the PRISMA-ScR guideline. Four electronic databases (PubMed, CINAHL, DOSS, and EMBASE) were searched using keywords grouped under 2 themes: "immigrants" and "oral health service." Only peer-reviewed qualitative articles published in English within the last 10 years were selected.

Results: Of 1349 original studies identified, 8 articles were included and reviewed. Three main themes emerged from newcomers' perspectives on their experience with oral health care in Canada and the United States: quality of care and professional behaviours, concerns about pediatric oral health care, and challenges in accessing care.

Discussion and conclusion: There is a need to improve cultural sensitivity and cross-cultural communication skills curricula in professional oral health education. Furthermore, making dental insurance more affordable, clarifying coverage for newcomers, and promoting collaboration between stakeholders and policymakers are essential to addressing the oral health concerns of immigrants and ASRs. Future research should prioritize primary interviews to gain more insights into newcomers' experiences when accessing oral health care.

Background: Oncostatin M (OSM), a 28 kDa glycoprotein 130 pleiotropic cytokine belonging to the interleukin-6 (IL-6) family, is mainly produced by neutrophils, activated T cells, monocytes, and macrophages. In response to tissue injury, it may stimulate the production of IL-6 alone or act synergistically with IL-6 or TNF-α contributing to the inflammatory cycle. Periodontitis is an inflammatory disease resulting from a dysbiotic bacterial community, which has a strong association with increased OSM production.

Objectives: To investigate and compare the levels of salivary and serum OSM in healthy subjects and subjects with periodontitis.

Materials and methods: Eighty-eight (88) individuals between the ages of 25 and 60 years were divided into 2 groups of 44: a periodontally healthy group (Group A) and a periodontitis group (Group B) based on clinical examination and radiographic analysis. Evaluation of salivary and serum OSM by enzyme-linked immunosorbent assay (ELISA) was performed in both groups.

Results: There was a significant difference in OSM levels between Groups A and B ( p< 0.01), with higher values in Group B. There was a positive correlation between the clinical parameters and OSM levels, indicating that OSM plays a significant role in modulating the inflammatory response of periodontal tissues.

Conclusion: The expression of cytokine OSM may play a potential role in the immunopathogenesis of periodontitis, suggesting a role as an inflammatory diagnostic marker.

Introduction: Community-based rehabilitation (CBR) centres in Malaysia were established to enhance the quality of life of persons with disabilities (PWDs), including their health care. It is unknown to what extent PWDs have been taught about oral health care at CBR centres.

Objective: This qualitative study investigated the perceptions of CBR managers regarding the level of training in oral health care received by CBR workers, the current oral health care program for PWDs, and the barriers and enablers in providing oral health education, care, and services for PWDs in CBR centres.

Methods: A semi-structured interview questionnaire and face-to-face in-depth interviews were conducted with CBR managers (n = 9) from 9 districts in Kuala Lumpur and Selangor, Malaysia, to seek their views on the focus topics. Audiorecorded interviews were transcribed verbatim, and transcripts were analysed in MAXQDA software. Qualitative data were analysed via thematic analysis.

Results: Interview content analysis revealed 4 themes, 11 subthemes, and 13 codes. The 4 identified themes were oral health care education and training for CBR workers, oral health care programs and protocol for CBR trainees (PWDs), barriers and enablers to care.

Conclusion: In all CBR centres, CBR workers and PWDs receive an oral health presentation, training in oral health care, and are provided with treatment by a dentist assigned by the Ministry of Health. No specific programs, training or special courses were provided by the Department of Social Welfare. Several personal, professional, and social factors were identified as affecting the provision of oral health care to the PWDs.

Objective: Detecting oral lesions at high risk of becoming cancer may enable early interventions to prevent oral cancer. The diagnosis of dysplasia in an oral lesion is used to predict this risk but is subject to interobserver and intraobserver variability. Studying biomarkers or molecular markers that reflect underlying molecular alterations can serve as an additional and objective method of risk assessment. E-cadherin and beta-catenin, molecular markers of epithelial-mesenchymal transition (EMT), potentially contribute to early malignant progression in oral tissue. This narrative review provides an overview of EMT, its relation to oral cancer, and the interaction among E-cadherin, beta-catenin, and the Wnt pathway in malignant progression of oral tissue.

Methods: Full-text literature on EMT, E-cadherin, beta-catenin, oral epithelial dysplasia, and oral cancer was retrieved from PubMed and Google Scholar.

Results: Sixty original research articles, reviews, and consensus statements were selected for review.

Discussion: EMT, a biological mechanism characterized by epithelial and mesenchymal changes, can contribute to cancer development. Molecular markers of EMT including TWIST, vimentin, and N-cadherin may serve as prognostic markers of oral cancer. Dependent on Wnt pathway activity and the loss of membranous E-cadherin, E-cadherin and beta-catenin can play various roles along the spectrum of malignant progression, including tumour inhibition, early tumour progression, and late-stage tumour progression. Cross-sectional immunohistochemical research has found changes in expression patterns of E-cadherin and beta-catenin from normal oral tissue, oral epithelial dysplasia, to oral squamous cell carcinoma.

Conclusion: Future research should explore the longitudinal role of EMT markers in predicting malignant progression in oral tissue.

Background: Dental plaque is a common issue that can be effectively managed with proper oral hygiene practices and regular oral health care. The aim of this crossover study was to assess dental plaque using different methods (digital and clinical plaque scores) and evaluate the effectiveness of toothbrushing with a triple-headed manual toothbrush compared to a single-headed manual toothbrush in removing dental plaque.

Methods: Plaque staining was performed to assess dental plaque amounts before and after brushing with the triple-headed (test) and single-headed (control) manual toothbrush in 21 study participants after plaque was allowed to accumulate for 48 hours. Dental plaque was scored both clinically as well as digitally.

Results: Toothbrushing with a manual single-headed toothbrush and a triple-headed toothbrush was found to be equally effective when comparing plaque removal ability. Brushing time was shorter when using a triple-headed toothbrush, compared to a single-headed toothbrush.

Conclusion: The triple-headed manual toothbrush may be a good alternative to the single-headed manual toothbrush for certain patient groups.

Objective: Despite the vast knowledge gained through research and public health surveillance, dental caries prevalence among children from low-income households remains high. The aim of this literature review is to identify assumptions made within existing empirical, constructivist, and critical paradigms to determine how those assumptions impact knowledge and if these impacts have aided in perpetuating inequity or health disparities within this target population.

Method: A literature search of EBSCOhost, PubMed, and Web of Science was conducted to retrieve articles from peer-reviewed journals published in the last 10 years, including qualitative, quantitative, and mixed methods studies. Qualitative methods included narrative research via interviews; quantitative designs included cross-sectional studies using surveys and various indices to assess oral health literacy (OHL) levels and oral health status. Exclusion criteria were non-English studies and studies that did not include female caregivers.

Results: Nine primary research articles were selected for analysis. The positivist paradigm was dominant in 7 of 9 articles. Oral health social processes, such as the lack of value placed on oral health as a component of overall health by the broader medical community and the public, were not discussed as influencing factors on OHL.

Discussion: Assumptions identified within the dominant paradigms were determined to perpetuate inequity or health disparities, confirming a link between caregivers' OHL levels and the oral health status of their children. It is critical that all health care professionals improve their understanding of factors affecting caregivers' OHL.

Conclusion: Strategies that empower and advocate for women to improve their OHL should be developed.

Introduction: Peripheral ossifying fibroma (POF) is a solitary gingival growth thought to arise from the gingiva, periosteum or the periodontal ligament. It is a slow-growing, benign, progressive lesion that is limited in size.

Case description: This article describes a case of ossifying fibroma of a peripheral variant that occurred in a 26-year-old female in the anterior region of the lower jaw and presented as a growth on the gingiva. Since it was difficult to diagnose clinically, a pathological evaluation was mandatory. Upon pathological confirmation of the diagnosis, the lesion was surgically excised up to the periosteum. This was deemed to be the required treatment yet, since the recurrence rate is high for POF (8% to 20%), the patient must be followed up yearly to check for recurrence.

Introduction: Numerous clinical trials and systematic reviews have investigated the effectiveness of both herbal and conventional oral care approaches to reducing plaque and gingivitis. However, their findings vary and are inconsistent. Thus, the objective of this umbrella review is to compile data from systematic reviews and provide an overview of the effects of herbal oral care products on tooth plaque and gingivitis.

Methods: A comprehensive search of the literature was performed in 6 databases for systematic reviews with or without meta-analyses, published up to 30 May 2023, without any language restrictions. Only clinical trials comparing herbal oral care products (in the form of mouthrinse or toothpaste) against standard oral care products or placebo were considered.

Results: Some herbal oral care products, particularly in the form of mouthrinses, have a similar level of positive effect on plaque and gingivitis reduction and, thus, can be used as an adjunct to traditional dentifrices. However, the shorter duration of trials (<4 weeks) and reported publication bias in the clinical trials mean that these findings must be interpreted with caution.

Conclusion: To accurately determine the impact of various herbal extracts on periodontal health, well-designed, long-term, and controlled trials that adhere to standardized protocols must be carried out.

Objective: Oral lichen planus (OLP) is an immune-mediated condition featuring chronic inflammation. The World Health Organization classifies OLP as potentially malignant, but it is believed that the malignant transformation of OLP occurs in lesions with both lichenoid and dysplastic features (LD). This review discusses the issues surrounding OLP and LD, including their malignancy, classification, and categorization, and whether lichenoid inflammation causes dysplastic changes in LD or vice versa.

Methods: English full-text literature on OLP, LD and/or dysplasia was retrieved from PubMed, CINAHL, and Google Scholar.

Results: Thirty-six publications including original research articles, reviews, meta-analyses, books, reports, letters, and editorials were selected for review.

Discussion: Research suggests that OLP has malignant potential, although small, and that LD should not be disregarded, as dysplasia presenting with or without lichenoid features may develop into cancer. There is also disagreement over the classification and categorization of LD. Different terms have been used to classify these lesions, including lichenoid dysplasia, OLP with dysplasia, and dysplasia with lichenoid features. Moreover, in LD, it is not clear if dysplasia or lichenoid infiltration appears first, and if inflammation is a response to dysplasia or if dysplasia is a response to the persistent inflammation. The main limitation in the literature is the inconsistency and subjective nature of histological diagnoses, which can lead to interobserver and intraobserver variation, ultimately resulting in the inaccurate diagnosis of OLP and LD.

Conclusion: Although further research is required to understand OLP and LD, both lesions should be considered potentially malignant and should not be disregarded.