The presence of periodontal diseases (PDs) often strongly correlates with other severe chronic inflammatory conditions, including cardiovascular disease, diabetes, and arthritis. However, the mechanisms through which these diseases interact are unclear. In PD, tissue and bone destruction in the mouth is driven by elevated recruitment of polymorphonuclear neutrophils (PMNs), which are primed and recruited from the circulation to sites of inflammation. We predicted that systemic effects on PMN mobilization or priming could account for the interaction between PD and other inflammatory conditions. We tested this using a mouse model of ligature-induced PD and found elevated PMN counts specifically in bone marrow, supporting a systemic effect of periodontal tissue inflammation on PMN production. In contrast, mice with induced peritonitis had elevated PMN counts in the blood, peritoneum, and colon. These elevated counts were further significantly increased when acute peritonitis was induced after ligature-induced PD in mice, revealing a synergistic effect of multiple inflammatory events on PMN levels. Flow cytometric analysis of CD marker expression revealed enhanced priming of PMNs from mice with both PD and peritonitis compared to mice with peritonitis alone. Thus, systemic factors associated with PD produce hyperinflammatory PMN responses during a secondary infection. To analyze this systemic effect in humans, we induced gingival inflammation in volunteers and also found significantly increased activation of blood PMNs in response to ex vivo stimulation, which reverted to normal following resolution of gingivitis. Together, these results demonstrate that periodontal tissue inflammation has systemic effects that predispose toward an exacerbated innate immune response. This indicates that peripheral PMNs can respond synergistically to simultaneous and remote inflammatory triggers and therefore contribute to the interaction between PD and other inflammatory conditions. This suggests larger implications of PD beyond oral health and reveals potential new approaches for treating systemic inflammatory diseases that interact with PD.
Background Oral health is associated with diabetes, but the chances of experiencing acute or chronic diabetes complications as per this association is unknown in Canada’s most populous province, Ontario. This study assesses the impact of self-reported oral health on the likelihood of experiencing acute and chronic complications among a cohort of previously diagnosed diabetics. Methods A retrospective cohort study was conducted of diabetics (n = 5183) who participated in the Canadian Community Health Survey 2003 and 2007–08. Self-reported oral health status was linked to health encounters in electronic medical records until March 31, 2016. Multinomial regression models determined the odds of the first acute or chronic complication after self-report of oral health status. Results Thirty-eight percent of diabetics reporting “poor to fair” oral health experienced a diabetes complication, in comparison to 34% of those reporting “good to excellent” oral health. The odds of an acute or chronic complication among participants reporting “poor to fair” oral health status was 10% (OR 1.10; 95% CI 0.81, 1.51) and 34% (OR 1.34; 95% CI 1.11, 1.61) greater respectively, than among participants experiencing no complications and reporting “good to excellent” oral health. Conclusion Self-reporting “poor to fair” oral health status is associated with a greater likelihood of chronic complications than acute complications. Further research regarding the underlying causal mechanisms linking oral health and diabetes complications is needed.
Background Dental diseases have detrimental effects on healthcare systems and societies at large. Providing access to dental care can arguably improve health outcomes, reduce healthcare utilization costs, and improve several societal outcomes. Objectives Our objective was to review the literature to assess the impacts of dental care programs on healthcare and societal outcomes. Specifically, to identify the nature of such programs, including the type of services delivered, who was targeted, where services were delivered, and how access to dental care was enabled. Also, what kind of societal and healthcare outcomes have been attempted to be addressed through these programs were identified. Methods We conducted a scoping review by searching four databases, MEDLINE, EMBASE, CINAHL, and Sociological Abstracts. Relevant articles published in English language from January 2000 to February 2022 were screened by four reviewers to determine eligibility for inclusion. Results The search resulted in 29,468 original articles, of which 25 were included in the data synthesis. We found minimal evidence that answers our proposed research question. The majority of identified programs have demonstrated effectiveness in reducing medical and dental healthcare utilization (especially for non-preventive services) and avert more invasive treatments, and to a lesser degree, resulting in cost-savings. Moreover, some promising but limited evidence about program impacts on societal outcomes such as reducing homelessness and improving employability was reported. Conclusion Despite the well-known societal and economic consequences of dental problem, there is a paucity of studies that address the impacts of dental care programs from the societal and healthcare system perspectives. MeSH terms Delivery of Health Care, Dental Care, Outcome assessment, Patient acceptance of Health Care.
Background Periodontitis has been associated with diabetes and poor health. While clear associations have been identified for the diabetes-oral health link, less is known about the implications of poor oral health status for incident complications of diabetes. This study investigated the risk of diabetes complications associated with self-reported "poor to fair" and "good to excellent" oral health among diabetics living in Ontario, Canada. Methods This was a cohort study of diabetics who took part in the Canadian Community Health Survey (2003 and 2007-08). Self-reported oral health was linked to electronic health records held at the Institute for Clinical Evaluative Sciences. Participants aged 40 years and over, who self-reported oral health status in linked databases were included (N = 5,183). Cox proportional hazard models were constructed to determine the risk of diabetes complications. Participants who did not experience any complications were censored. Models were adjusted for age and sex, followed by social characteristics and behavioural factors. The population attributable risk of diabetes complications was calculated using fully adjusted hazard ratios. Results Diabetes complications differed by self-reported oral health; 35% of the total sample experienced a complication and 34% of those reporting "good to excellent" oral health (n = 4090) experienced a complication in comparison to 38% of those with "fair to poor" oral health (n = 1093). For those reporting "poor to fair" oral health, the hazard of a diabetes complication was 30% greater (HR 1.29; 95% CI: 1.03, 1.61) than those reporting "good to excellent" oral health. The population level risk of complications attributable to oral health was 5.2% (95% CI: 0.67, 8.74).
Objectives: To determine the extent to which living conditions and individual behaviors influence the association between oral health status and systemic disease outcomes in Ontario, Canada's most populated province. Methods: A secondary data analysis of Ontario data from the Canadian Community. Health Survey 2013/14 was undertaken. Separate analyses were conducted for participants aged 35-59 years (n = 11,858) and 60+ years (n = 11,273). A series of regression models were constructed to examine the association between self-reported oral health status and systemic disease outcomes (arthritis, diabetes, hypertension, heart disease, chronic obstructive pulmonary disease, and stroke). Models were adjusted by proxies of living conditions (income, education, ethnicity, country of birth, employment, and food security) and individual behaviors (smoking status, alcohol use, tooth brushing, life stress, physical activity, sense of belonging). Percent attenuation between models was calculated to determine the extent of the living conditionbehavior impact. Results: In both age groups, the prevalence of arthritis and high blood pressure was the highest, followed by heart disease. There was variation in percent attenuation by age group and outcome. Among participants aged 35-59 years, living conditions had a greater impact on the oral-systemic relationship, while individual behaviors played a greater role in this association among adults aged 60+ years. Conclusion:There is an association between oral and systemic diseases; however, after accounting for living conditions and individual behaviors, this relationship was attenuated. This highlights the need to address upstream and midstream factors that are common to oral and systemic conditions.
Introduction: Like any health care practitioner, dental hygienists can experience mistreatment in the workplace. They can be subjected to harassment, bullying, abuse, and violence. These negative experiences can have adverse consequences on psychological and physical well-being and can lead to job dissatisfaction, depression, and burnout. The aim of this study was to describe dental hygienists’ experiences related to healthy and respectful workplaces. Methods: This was an online self-administered survey sent to all members of the Canadian Dental Hygienists Association. Respondents were asked to report the occurrence, frequency, and impact of different types of mistreatment as experienced over their career. Results: In total, 3,780 dental hygienists responded to the survey (response rate = 22%). More than 70% of respondents experienced some form of mistreatment over their career from dentists, office managers, coworkers, and/or patients. Of those who experienced mistreatment, 67% reported losing the respect they felt for the offending person, 55% reported experiencing symptoms of depression, and 30% quit their job. Conclusions: Mistreatment toward dental hygienists can be prevalent in Canadian dental care settings, resulting in negative consequences to dental hygienists’ well-being. Knowledge Transfer Statement: The findings of this article suggest that measures are needed to support healthy and respectful workplaces in Canadian dental care settings. This includes but is not limited to 1) training and education for all members of the dental care team concerning mistreatment, 2) enacting policies in dental care settings to discourage these types of behaviors, and 3) providing help and support to individuals who experience these incidents.
Background: Despite significant global improvements in oral health, inequities persist. Targeted dental care programs are perceived as a viable approach to both improving oral health and to address inequities. However, the impacts of dental care programs on individual and family oral health outcomes remain unclear. Objectives: The purpose of this scoping review is to map the evidence on impacts of existing dental programs, specifically on individual and family level outcomes. Methods: We systematically searched four scientific databases, MEDLINE, EMBASE, CINAHL, and Sociological Abstracts for studies published in the English language between December 1999 and November 2021. Search terms were kept broad to capture a range of programs. Four reviewers (AG, VD, AE, and KKP) independently screened the abstracts and reviewed full-text articles and extracted the data. Cohen’s kappa inter-rater reliability score was 0.875, indicating excellent agreement between the reviewers. Data were summarized according to the PRISMA statement. Results: The search yielded 65,887 studies, of which 76 were included in the data synthesis. All but one study assessed various individual-level outcomes (n = 75) and only five investigated family outcomes. The most common program interventions are diagnostic and preventive (n = 35, 46%) care, targeted children (n = 42, 55%), and delivered in school-based settings (n = 28, 37%). The majority of studies (n = 43, 57%) reported a significant improvement in one or more of their reported outcomes; the most assessed outcome was change in dental decay (n = 35). Conclusions: Dental care programs demonstrated effectiveness in addressing individual oral health outcomes. However, evidence to show the impact on family-related outcomes remains limited and requires attention in future research.
An amendment to this paper has been published and can be accessed via the original article.
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