Dietary inflammatory index in relation to salivary cytokine concentrations and periodontitis: A cross-sectional analysis

AIM

To examine the associations of dietary inflammatory index (DII) with salivary cytokine concentrations and periodontitis after controlling for body mass index (BMI), socio-demographic factors and lifestyle.

MATERIALS AND METHODS

Subgroups from two Finnish surveys, DILGOM 2007 and Health 2000, were included (total n = 727). The DII scores were calculated based on a food frequency questionnaire. Periodontal status was assessed with a cumulative risk score in DILGOM 2007 and by pocket depth measurement in Health 2000. From saliva, interleukin (IL)-1β, IL-1 receptor antagonist, IL-6, IL-8, IL-10 and tumour necrosis factor (TNF)-α concentrations were measured.

RESULTS

The DII scores did not differ between non-periodontitis and periodontitis participants in pairwise comparison. After adjusting for energy intake, periodontal status, BMI, age, education level, smoking habit and physical activity, DII was not associated with salivary cytokine concentrations. After adjusting for salivary cytokine levels and other confounding factors, DII was associated with periodontitis in the Health 2000 subgroup but not in the DILGOM 2007 subgroup.

CONCLUSIONS

The current data support the evidence that diet is not associated with salivary cytokine levels but may be associated with periodontitis. The association observed between diet and periodontitis is related to factors other than diet-dependent inflammatory tendency in the oral cavity.

Associations of inflammatory polyarthritis with clinical and radiological findings of temporomandibular disorders

OBJECTIVE

To evaluate the association of different forms of inflammatory polyarthritis with clinical signs of temporomandibular disorders (TMD) and radiological findings in temporomandibular joint (TMJ), based on a nationwide health survey in Finland. The aim was also to assess the presence of clinical and radiological TMD findings in subjects with increased risk for developing rheumatoid arthritis (RA).

MATERIAL AND METHODS

Anationally representative sample included 6331 Finnish adults who participated in the Health 2000 Survey (BRIF8901). Subjects were examined for signs of TMD, findings in panoramic radiograph of TMJ, musculoskeletal health and serology (rheumatoid factor, RF, and anti-cyclic citrullinated peptide, aCCP).

RESULTS

Sixty-four percent of seronegative RAand 60% of seropositive RAsubjects had at least one sign of TMD. While adjusting for confounding factors (gender, age, dentures and smoking history), RAwas significantly associated with crepitation and abnormal radiological findings in TMJ. Seronegative RAwas also associated with restricted mouth opening. Systemic autoimmunity associated with RA("at risk of RA") was not associated with clinical or radiological TMD findings.

CONCLUSIONS

Clinical and radiological findings of TMD are more prevalent among subjects with inflammatory polyarthritis than among the population in general in the Finnish adult population.

Impact of an oral care subsidization reform on intersectional inequities in self-rated oral health in Sweden

BACKGROUND

Oral health in Sweden is good at the population level, but seemingly with persisting or increasing inequities over the last decades. In 2008, a major Swedish reform introduced universal partial subsidies to promote preventive care and reduce the treatment cost for patients with extensive care needs. This study aimed to apply an intersectional approach to assess the impact of the 2008 subsidization reform on inequities in self-rated oral health among adults in Sweden over the period 2004-2018.

METHODS

Data from 14 national surveys conducted over 2004-2018 were divided into three study periods: pre-reform (2004-2007), early post-reform (2008-2012) and late post-reform (2013-2018). The final study population was 118,650 individuals aged 24-84 years. Inequities in self-rated oral health were examined by intersectional analysis of individual heterogeneity and discriminatory accuracy across 48 intersectional strata defined by gender, age, educational level, income, and immigrant status.

RESULTS

Overall, the prevalence of poor self-rated oral health decreased gradually after the reform. Gender-, education- and income-related inequities increased after the reform, but no discernible change was seen for age- or immigration-related inequities. The majority of intersectional strata experienced patterns of persistently or delayed increased inequities following the reform.

CONCLUSIONS

Increased inequities in self-rated oral health were found in most intersectional strata following the reform, despite the seemingly positive oral health trends at the population level. Applying an intersectional approach might be particularly relevant for welfare states with overall good oral health outcomes but unsuccessful efforts to reduce inequities.

Association of tooth location, occlusal support and chewing ability with cognitive decline and incident dementia

AIM

Emerging evidence suggests association of tooth loss with impaired cognition. However, the differential effects of anterior versus posterior tooth loss, occlusal support loss and chewing ability are not considered comprehensively.

MATERIALS AND METHODS

We conducted cross-sectional (N = 4036) and longitudinal analyses (N = 2787) on data from Health 2000 and 2011 Surveys for associations of posterior occlusal support loss, anterior versus posterior tooth loss, and chewing ability with baseline cognition and 11-year cognitive decline. Additionally, 15-year incident dementia risk was investigated (N = 4073).

RESULTS

After considering relevant confounders and potential reverse causality bias, posterior occlusal support loss significantly increased dementia risk across all categories indicative of posterior occlusal support loss (hazard ratios [HRs] between 1.99 and 2.89). Bilateral inadequate posterior occlusal support was associated with 11-year decline in overall cognition (odds ratio [OR] = 1.48:1.00-2.19), and unilateral inadequate posterior occlusal support with total immediate (OR = 1.62:1.14-2.30) and delayed recall decline (OR = 1.45:1.03-2.05). Moreover, posterior tooth loss was associated with dementia (HR = 2.23:1.27-3.91) and chewing ability with total immediate decline (OR = 1.80:1.04-3.13).

CONCLUSIONS

Posterior tooth and occlusal support loss significantly increases dementia risk. The impact of posterior occlusal support loss appears to be dose-dependent, and this effect is distinct from that of dentures. Dental healthcare services should be particularly attentive to the state of posterior dentition. Further studies exploring possible mechanisms are warranted.

Prevalence and risk factors of frailty among older family caregivers

AIM

The aim of this study was to investigate the prevalence of frailty and identify the demographical and clinical factors associated with frailty among older family caregivers.

METHOD

The participants of this cross-sectional study were older family caregivers (n = 125) living in Eastern Finland. Data on functional and cognitive status, depressive symptoms, nutritional status, medication, chronic diseases, stroke, and oral health were obtained. The Mini Nutritional Assessment (MNA) was used to evaluate nutritional status. Frailty status was evaluated using the abbreviated comprehensive geriatric assessment (aCGA) scale.

RESULTS

Seventy-three percent of caregivers were identified as frail. According to multivariable logistic regression, cataract, glaucoma, or macular degeneration and the MNA score were predictors of frailty. After adjusting for age, gender, and number of own teeth, the MNA score remained a significant predictor of frailty (adjusted OR = 1.22, 95% CI = 1.06, 1.41). As the MNA scores decreased (meaning poorer nutritional status), the risk of frailty increased.

CONCLUSIONS

The present study showed that frailty is prevalent among older family caregivers. Recognising older family caregivers with frailty or at risk of frailty is vital. It is essential to acknowledge vision problems' role in frailty and to monitor and support the nutritional status of family caregivers regularly to prevent frailty development.

The combination of listening to background music and deep breathing as a stress reduction strategy during dental preclinical study

OBJECTIVES

According to our earlier study, background music can help foster dental preclinical manual dexterity training and learning and has the potential to increase student satisfaction and productivity. Deep diaphragmatic breathing helps produce a relaxed mental state and is considered a behavioral coping strategy to reduce anxiety. Experimental data on whether background music combined with deep belly breathing reduces the stress and anxiety of preclinical dental students during practice is lacking. Thus, we focused on evaluating the effects of the combined use of these two techniques on dental students during preclinical manual skills training.

METHODS

Thirty-one voluntary 3rd-year dental students' anxiety levels and their behavioral changes were monitored via anonymous, voluntary surveys including the Patient Health Questionnaire-4, General Health Questionnaire-12 (GHQ-12), and Visual Analogue Scale for Anxiety (VAS-A).

RESULTS

Overall, stress measured by GHQ-12 decreased significantly in female students (p = 0.025), but not in males. Both background music and deep belly breathing significantly reduced all students' fear and stress based on their VAS-A scores in practice. However, a clear difference from the nonuse of coping strategies could not be conclusively shown. The students regarded the course positively based on survey replies.

CONCLUSIONS

The combined use of the two coping strategies delivered beneficial effects to the preclinical dental students: they reduced the amount of stress in the supervised preclinical students and considerably cut down the students' anxiety. Further investigation of this new dental training scenario may help professionals provide better student education and care management during the dental preclinical phase.

Use of oral health care services among older home care clients in the context of an intervention study

BACKGROUND

An increasing number of care-dependent older people living at home need external support to receive regular dental care.

OBJECTIVES

To investigate the use of oral health care services among old home care clients who participated in an intervention study focusing on oral self-care and nutrition.

MATERIALS AND METHODS

This study employed data from the multidisciplinary Nutrition, Oral Health and Medication (NutOrMed) intervention study with a population-based sample of 245 home care clients (74% female) aged 75 or more divided in intervention (n = 140) and two control groups (n = 105). The data were collected through interviews at baseline and 6-month follow-up.

RESULTS

At baseline, 43% of participants reported visits to oral health care within the previous year. At 6-month follow-up, this proportion was 51%. In the intervention group, the corresponding figures were 46% and 53%, and in the controls 39% and 48%. Adjusted regression analyses showed that this change was statistically significant (p = 0.008). In addition, higher education and toothache or other discomfort related to teeth or dentures at baseline were associated with increased use after the 6-month follow-up (OR = 1.1, 95% CI = 1.0-1.2; OR = 3.4, 95% CI = 1.5-7.9) but being edentulous indicated the opposite (OR = 0.2, 95% CI = 0.1-0.4). Belonging to the intervention group was not associated with increased use.

CONCLUSIONS

In older adults, any efforts to raise awareness of oral health are of great potential to increase use of services.

The use of dental anxiety management techniques during one-session treatment: a study on five video-recorded patient cases

OBJECTIVE

The aim was to examine what kinds of dental anxiety management techniques dentists use in the context of one-session treatment.

MATERIAL AND METHODS

The data consisted of videotaped treatment sessions for five dentally anxious adults. The treatment was conducted by two experienced dentists without formal training in the treatment of dentally anxious patients or behavioral management techniques. Theory-driven qualitative content analysis, based on the anxiety management classification of Milgrom et al. was used to identify and classify the techniques used during the treatments.

RESULTS

Altogether, diverse categories of dental anxiety management techniques were identified under the main themes of enhancing trust and control and psychological management. Techniques that fell into enhancing trust and control included the categories of 'building a trustful relationship', 'informational control', and 'behavioral control'. These techniques were used consistently throughout the sessions. Additionally, psychological management techniques were identified and classified as 'behavioral strategies: relaxing the body' and 'cognitive strategies: relaxing the mind', which were regularly used in specific situations.

CONCLUSION

The results indicate that a variety of dental anxiety management techniques were used during one-session treatments. The findings provide valuable insights for dentists in managing their patients with dental anxiety and improving their overall treatment experience.

Older family caregivers' diet-related disparities: Cross-sectional evidence from Finland

BACKGROUND

Some older family caregivers experience financial vulnerabilities due to their caregiving role, which may affect their ability to afford appropriate food. This study aimed to assess the extent to which there are diet-related disparities among older family caregivers in Eastern Finland.

METHODS

This study is based on the multidisciplinary LifEstyle, NutriTion and Oral health in caregivers (LENTO) study. In total, 125 family caregivers were included. Data were collected between June and December 2019. Participants were assessed on health, nutritional status and sociodemographic factors. The associations and predictors of diet-related disparities were assessed using the independent samples t-test, ANOVA-test, χ2 -tests and binary logistic regression.

RESULTS

The mean age of family caregivers was 74 years (SD = 8). Most were female (72%), 20% had malnutrition risk and 30% reported having 'moderately enough money' or less, which was identified as 'subjective poverty'. Family caregivers experiencing subjective poverty were less likely to consume two or more portions of fruit and vegetables daily and were more likely overweight. Study participants' diet-related disparities were further associated with several health inequalities, including comorbidity, depression, diabetes (Type I or II) and osteoporosis.

CONCLUSIONS

Older family caregivers have diet-related disparities, further associated with health inequalities. Family caregivers' diet-related disparities require increasing attention in healthcare. Addressing family caregivers' food insecurity risk would enhance their health equity. Lack of assessment of diet-related disparities will only deepen health inequalities.

Large-group simulation as a learning method to promote interprofessional collaboration and older adults' patient centered-care

AIMS

This study described the influence of a large-group simulation on social and health care students´ working life competence concerning interprofessional collaboration (IPC) and patient centered-care.

METHODS AND RESULTS

The target group (n = 319) was social and health care students from several different degree programs taking part in a large-group simulation concerning older people´s oral health as a part of his comprehensive well-being and health. Data were collected with a questionnaire containing background questions, statements about interprofessional practice and open-ended questions about learning experiences. The number of respondents was 257, including 51 oral health care students (OHCS). The data were analyzed using descriptive and statistical methods and content analysis. Working life competencies covers the overall social and collaborative skills which health-care professionals need in their work. They were reported to be improved in IPC and patient-centered care (PCC). The main described learning experiences in open responses included appreciating different professionals' competencies and the importance of interprofessional decision-making, interpersonal communication competence and patient-centered attitudes in care provision.

CONCLUSION

The large-group simulation is a good model for educating larger student groups simultaneously and it functioned well in improving understanding of IPC and PCC among older adults.

Effects of universal oral healthcare coverage in an adult population: A long-term nationwide natural experiment

OBJECTIVES

A large and long-term natural experiment occurred in Finland from the late 1980s-2000, when adults' entitlement to subsidized oral healthcare was strongly dependent on the arbitrary classification based on their year of birth: people born in 1956 or later were entitled to subsidized care, while people born before 1956 were not. The aim of this study was to investigate the effect of this expanded universal oral healthcare coverage on service use and oral health outcomes.

METHODS

Data from annual nationally representative cross-sectional postal surveys among 15-64-year-olds between 1990 and 2014 were used. For this study, the following outcome variables were formed: experiencing toothache during the past month (yes/no), the number of missing teeth with three different thresholds (over 10, over 5 or at least 1 missing tooth), brushing more than once a day and the number of visits to the dentist. Regression discontinuity plots and bias-corrected local polynomial regression discontinuity estimators measuring the effect of the extended universal coverage on the outcomes at the year-of-birth cut-off of 1956 were generated separately from the data from 1990 to 2000 and from 2002 to 2014.

RESULTS

Between 1990 and 2000, the number of visits to the dentist (0.2 visits, 95% CI, confidence intervals: -0.03; 0.43) and the proportion of those who visited the dentist during the past 12 months (4.2%, 95% CI: 0.1%; 8.3%) increased at the year-of-birth cut-off of 1956. There were minor drops (1.5%-1.9%) in the number of missing teeth across all thresholds (over 10, over 5, or at least 1 missing teeth) at the cut-off. Analyses with the data from the surveys from 2002 to 2014 showed that there were no discontinuities in these outcomes at the cut-off of 1956. Regression discontinuity estimates related to toothache experience and toothbrushing frequency were inconclusive due to high variability in the underlying data and the likely small effect of the more universal coverage on these outcomes.

CONCLUSIONS

The current study provided evidence of the beneficial effects of universal oral healthcare coverage on the oral healthcare service use and teeth preservation from a large and long-term natural experiment occurred in Finland from the late 1980s to 2000.

Depressive symptoms, low-grade inflammation, and poor oral health prevents the success of nutritional guidance in older caregivers

PURPOSE

The present study aimed to determine which factors prevents the success of nutritional interventions for older family caregivers (FCs), in the form of individually tailored nutritional guidance.

METHODS

The present study focuses on the intervention group of FCs (n = 63) of a randomized controlled trial. Older FCs (≥60 years of age) receiving a care allowance for a home-living care recipient (≥65 years of age) were included in the present study, which focused on nutritional interventions via individually tailored nutritional guidance provided by a clinical nutritionist. The associations between changes in protein intake (3-day food record), Mini Nutritional Assessment (MNA) scores, and plasma albumin and prealbumin concentrations, as well as associated factors, for the 6-month intervention period were analyzed using generalized estimating equations.

RESULTS

Intervention time, female sex, older age, higher net income, better hand grip strength, more teeth, and removable denture use were positively associated with an increase in protein intake. Fewer depressive symptoms were associated with a positive change in the MNA scores. Younger age, lower education level, lower body mass index (BMI), higher depressive symptoms, and fewer teeth were associated with an increase in plasma albumin concentration. Younger age, lower education, lower plasma concentration of high-sensitivity C-reactive protein at 6 months, lower Sense of Coherence (SOC) -13 score, fewer teeth, and absence of removable dentures were associated with an increase in plasma prealbumin concentration.

CONCLUSION

Older female FCs with a higher income, better hand grip strength, lower education, and lower SOC benefited most from individually tailored nutritional guidance. Depressive symptoms, oral health, and low-grade inflammation should be considered when providing nutritional guidance to older FCs.

CLINICAL TRIAL REGISTRATION NUMBER

ClinicalTrials.gov NCT04003493 (July 1, 2019).

Oral health-related quality of life among home-dwelling older people with and without domiciliary care

OBJECTIVES

The aim was to compare oral health-related quality of life (OHRQoL) between home-dwelling older people with and without domiciliary care when adjusted for gender, education, use of dental services and removable dental prostheses.

BACKGROUND

OHRQoL of home-dwelling older people with and without domiciliary care is a neglected area of research, with few studies having been conducted.

MATERIALS AND METHODS

A secondary analysis was conducted on the Finnish Health 2011 interview data. Home-dwelling participants (age ≥ 70) with or without domiciliary care were included (n = 758). OHRQoL was measured with the Oral Health Impact Profile questionnaire (OHIP-14) calculating three outcomes: prevalence of at least one impact reported: "occasionally," "fairly often" or "very often" (OFoVo), severity as mean sum score and mean of the seven OHIP-14 dimensions. These were evaluated by use of domiciliary care using logistic and negative binomial regression analyses.

RESULTS

Domiciliary care clients tended to have poorer OHRQoL than non-clients (severity mean 4.33 vs 4.11, P = .057), especially men (6.71 vs 4.15, P = .027), and reported more psychological discomfort than non-clients (mean 1.10 vs 0.82, P = .039). The use of removable dental prostheses was the strongest predictor (OR 2.84, P < .001) of poor OHRQoL.

CONCLUSION

Domiciliary care clients tended to report poorer OHRQoL, especially with regard to psychological discomfort dimension than non-clients. Thus, support of oral hygiene and regular utilisation of oral health services should be part of domiciliary care among older people to enhance OHRQoL.

Association of tooth count with cognitive decline and dementia in the Finnish adult population

AIM

To evaluate whether tooth loss is associated with cognitive decline and incident dementia.

MATERIALS AND METHODS

We analysed data from the Finnish population-based Health 2000 and follow-up Health 2011 surveys (participants aged ≥30 years and without dementia at baseline; N = 5506 at baseline and 3426 at 11-year follow-up). Dementia diagnoses until 2015 were ascertained from national registers (N = 5542). Tooth count was dichotomized as adequate (≥20) versus tooth loss (<20). Tooth loss was further stratified into 10-19 teeth, 1-9 teeth and edentulism. Upper and lower jaws were also considered separately. Baseline cognitive test scores were dichotomized by median as high versus low, and 11-year change as decline versus no decline.

RESULTS

Tooth loss (<20) was associated with lower baseline overall cognition (odds ratio [OR] = 1.21, 95% confidence interval [CI] = 1.03-1.43), 11-year cognitive decline (OR = 1.30, 95% CI = 1.05-1.70) and higher 15-year dementia risk (hazard ratio = 1.52, 95% CI = 1.15-2.02) after adjusting for multiple confounders. After adjustment for dentures, associations became non-significant, except for 10-19 teeth remaining and dementia. Results were similar after considering reverse causality bias; however, 10-19 teeth remaining was significantly associated with 11-year cognitive decline even after adjustment for dentures. No jaw-specific differences were observed.

CONCLUSIONS

Tooth loss adversely impacts the risk of cognitive decline and dementia. The role of dentures should be further explored.

Gender differences in the association between malocclusion traits and oral health-related quality of life in Finnish adults

We aimed to evaluate the gender-specific associations of malocclusion traits with oral health-related quality of life (OHRQoL) among Finnish adults. Data were obtained from the Health 2000 Survey, Finland. Included participants (n = 3993) were ≥30 years old with OHRQoL and occlusion data. OHRQoL was measured using the 14-item Oral Health Impact Profile (OHIP-14). OHIP-14 severity mean score, prevalence of impacts, and means of seven dimensions were outcomes. Explanatory variables were any malocclusion trait, increased overjet, negative overjet, open bite, deep bite, and crossbite/scissor bite. Logistic (prevalence) and cumulative (severity) regression models were adjusted for age, decayed teeth, deep periodontal pocket, occluding pairs, orthodontic treatment, and self-perceived health. Gender modified the association between any malocclusion trait and OHRQoL, with the association being stronger in females. Females without any malocclusion trait (OR = 1.62, 95% CI = 1.14-2.28) or without crossbite/scissor bite (OR = 1.68, 95% CI = 1.16-2.43) had better OHRQoL (lower prevalence) than those with malocclusions. Males without increased overjet (OR 1.50, 95% CI = 1.04-2.17) had lower mean OHIP-14 severity score than males with increased overjet, after adjustments. The association between psychological and physical disability and malocclusion traits was different between males and females. Gender differences in the impact of malocclusion traits should be considered when assessing orthodontic treatment need.

Leadership and work community - views of graduating dental students

PURPOSE

This study aims to explore what kind of perceptions dental students at graduation stage have on leadership and work communities, and themselves as leaders and work community members after completing a leadership course tailored for them.

DESIGN/METHODOLOGY/APPROACH

The research material comprised reflective essays written by fifth-year dental students who had participated in a leadership course. The essays were analyzed using qualitative content analysis.

FINDINGS

Most students reported that they had not considered seeking a leadership position before the course, but their views of leadership had grown more positive as a result of completing the course. Students perceived interpersonal communication competence as the most important factor for leaders, the whole work community and for themselves. They assessed that their biggest strengths were found in this area. The biggest challenges in adapting to a work community concerned the students' professional identities, which were still taking shape at the time of graduation.

ORIGINALITY/VALUE

The need for leaders in health-care professions is growing due to ongoing reforms, multidisciplinary teamwork, the development of new technologies and patient demands. Therefore, undergraduate leadership education is needed to ensure that students have knowledge of leadership. Graduating dental students' perceptions concerning leadership and work communities have not been widely explored. Students' perceptions of leadership were positive after the course and helped students to realize their own potential in this area.

The effectiveness of a diagnostic interview and modified one-session treatment for dental anxiety in primary dental care-A pilot study

AIMS

To investigate the effectiveness of a cognitive-behavioral intervention that included either a diagnostic interview (DI) or a DI combined with modified one-session treatment (M-OST) for dental anxiety among adults in a primary care setting.

METHODS AND RESULTS

Nineteen participants were assigned to either a DI before conventional dental treatment (group T1) or DI and M-OST (group T2). The severity of dental anxiety was measured with three self-reported measures before and after the intervention: the Modified Dental Anxiety Scale (MDAS), the Index of Dental Anxiety and Fear (IDAF-4C), and the Visual Analogue Scale-Anxiety (VAS-A). Dental care attendance was enquired in a 1-year follow-up. The scores for all three scales decreased among both study groups, with the largest decrease recorded in treatment group T1 assessed with the VAS-A. A higher dental anxiety score measured before the intervention associated most significantly with a higher dental anxiety score after the intervention. At the 1-year follow-up, 82% of participants in T1 and 67% in T2 had visited a dentist.

CONCLUSION

A DI alone and combined with M-OST is potentially effective in reducing dental anxiety and in supporting the engagement of adult patients with dental treatment in primary dental care.

Association of service use with subjective oral health indicators in a freedom of choice pilot

OBJECTIVES

A freedom of choice pilot provided access to private oral health care services without queuing and with fixed public service-fees for participants in Tampere region, Finland in 2018-2019. The aim of this study was to investigate how use of oral health care services differed by demographics, socioeconomic status, dental fear, and self-reported oral health in this pilot.

MATERIAL AND METHODS

SMS-messages including a link to online questionnaire were sent to participants who had booked an appointment, and to those who had not booked an appointment despite registering to pilot. We categorized participants to (1) those who had booked their first appointment before receiving SMS (visitors), (2) those who booked an appointment after receiving the SMS-message (late-visitors), and (3) those who had not booked an appointment during pilot (nonvisitors). We used regression analysis to estimate the association of age, gender, dental fear, economic situation, Oral Health Impact Profile-14-severity (oral health-related quality of life [OHRQoL]), self-reported oral health and need for oral health care (exposures) with oral health care service use during the pilot (outcome).

RESULTS

Out of 2300 participants, 636 (28%) responded. Late-visitors were more likely older and reported more likely need for oral health care, poorer oral health and OHRQoL than visitors or nonvisitors. Nonvisitors were younger and had better OHRQoL than the others. The differences in the service use by gender, economic situation, and dental fear were small.

CONCLUSIONS

Service use during the pilot depended on the subjective oral health. Our findings highlight the potential of reminders in increasing care use among those with perceived need for services.

Salivary Human β-Defensin 1-3 and Human α-Defensin-1 Levels in Relation to the Extent of Periodontal Disease and Tooth Loss in the Elderly

The oral innate immune response may diminish with aging. In the present study, the aim was to examine human β-defensin (hBD) 1-3 and human neutrophil peptide (HNP)-1 levels in the saliva of an elderly population to establish the extent of periodontal disease and tooth loss. A total of 175 individuals aged ≥ 65 years were divided into five groups based on the number of teeth with a pocket depth ≥ 4 mm as follows: 17 pocket-free individuals (Control), 55 individuals having 1-6 pocket teeth (PerioA), 33 individuals having 7-13 pocket teeth (PerioB), 29 individuals having at least 14 pocket teeth (PerioC), and 41 edentulous individuals. Their salivary defensin levels were measured with ELISA kits. The salivary HNP-1 levels were significantly higher in the Perio groups (PerioB: p < 0.001 and PerioC: p < 0.001) in comparison to the Control. The associations between salivary HNP-1 levels and the number of pocket teeth remained significant after adjustments for age, gender, level of education, and number of teeth. The salivary HNP and hBD levels differed in terms of their correlation to the extent of periodontal disease and tooth loss in the elderly.

Unlike severe periodontitis, caries does not associate with intracranial aneurysms or aneurysmal subarachnoid hemorrhage

PURPOSE

Periodontal diseases and caries are common oral diseases that predispose to tooth loss if untreated. In this study, we investigated whether loss of teeth or caries associate with intracranial aneurysm (IA) pathology similar to periodontal diseases.

METHODS

A total of 166 patients with either IA or aneurysmal subarachnoid hemorrhage (aSAH) underwent oral examination in Kuopio University Hospital and Tampere University Hospital. Findings were compared to geographically matched controls acquired from cross-sectional Health2000 survey. This study consisted of three sequential steps. First, we compared the number of missing teeth and prevalence of caries in IA and aSAH patients and geographically matched control population, second step was a multivariate analysis including other risk factors, and third step was a 13-year follow-up of the Health2000 survey participants with missing teeth or caries at baseline.

RESULTS

Loss of teeth did not significantly differ between IA patients and controls. In logistic regression model adjusted for known risk factors and demographic data, 1-4 caries lesions (OR: 0.40 95%Cl 0.2-0.9, p = 0.031) was associated with lack of IAs, while age (OR: 1.03 95%Cl 1.01.1 p = 0.024), current smoking (OR: 2.7 95%Cl 1.4-5.1, p = 0.003), and severe periodontitis (OR: 5.99 95%Cl 2.6-13.8, p < 0.001) associated to IA formation. In the cox-regression, severe periodontitis at baseline increased the risk of aSAH (HR: 14.3, 95%Cl 1.5-135.9, p = 0.020) during a 13-year follow-up, while caries or missing teeth did not.

CONCLUSION

Unlike severe periodontitis, caries does not increase the risk of IAs and aSAHs. However, cariogenic bacteria may participate to IA pathology by disseminating to circulation via inflamed gingival tissue.

Assessing Social Inequalities in Older Family Caregivers' Frailty Conditions, Comorbidity, and Cognitive Functioning: A Cross-sectional Study

We aimed to assess the social inequalities in older family caregivers' frailty conditions, comorbidity, and cognitive functioning. A cross-sectional study was conducted. Study participants were recruited in 2019 in Finland. First, cognitive functioning was assessed with a Mini-Mental State Examination, comorbidity with the modified Functional Comorbidity Index, and frailty conditions were evaluated using the abbreviated Comprehensive Geriatric Assessment. Study participants were also interviewed on socioeconomic factors. The social inequalities in these health outcomes were assessed using the Independent Samples t-test, Pearson Chi-square test, and Binary Logistic Regression Analysis. Family caregivers' (n = 125) mean age was 74, and 73% had frailty conditions. Family caregivers' social inequalities in frailty conditions were linked to their older age and the lowest caregiving cash benefit. Family caregivers' low educational attainment was also the main factor predicting their minor cognitive impairment. Family caregivers' social determinants of health should be fully assessed in their health assessment, policies, and programs to ensure healthy aging for both family caregivers and care recipients in the future.

Association between cynical hostility and temporomandibular pain mediated through somatization and depression: an 11-year follow-up study on Finnish adults

BACKGROUND

Hostility is believed to have an adverse effect on physical health through mediating psychosocial factors.

OBJECTIVES

This study aimed to investigate the association of hostility with temporomandibular (TMD) pain. Another aim was to investigate if the association is mediated through increases in depressiveness and somatization in an 11-year follow-up on Finnish adults, based on the Health 2000 and 2011 Surveys (BRIF8901).

MATERIAL AND METHODS

The sample comprised subjects who underwent clinical TMD pain examination (pain on palpation of the masticatory muscles and temporomandibular joints) in 2000 and 2011 and responded to questions on TMD pain symptoms in 2011. Hostility was measured using the Cynical Distrust Scale, somatization was measured using the Symptom Checklist-90, and depressiveness using Beck's Depression Inventory-21. Four subgroups were formed based on the presence of TMD pain: no pain, pain in 2000 only, pain in 2011 only, and pain in 2000 and 2011. Analyses included chi-square test cross-sectionally, and multinomial logistic regression longitudinally with the level of hostility in 2000 as the predictor. Mediation analysis was performed using Hayes' Process v3.5.

RESULTS

Those with higher hostility showed a higher prevalence of TMD pain. Longitudinally, the association of hostility with TMD pain in 2000 only, and with TMD pain in both years, was mediated either by somatization only or by depressiveness that was mediated by somatization. In those with TMD pain in 2011 only, the association was mediated by depressiveness that was mediated by somatization.

CONCLUSION

Hostility increased the risk of TMD pain through increases in depressiveness and somatization.

Periodontal condition and ultrasound-based measures of arterial stiffness: results of the Health 2000 Survey

Background

Periodontitis has been associated with inflammatory processes in arterial walls such as impairment in endothelial function and thickening of intima media. As inflammation plays a role also in arterial stiffening, an association between periodontal inflammation and arterial stiffness can be expected. So far, conflicting results of the association between periodontal disease and arterial stiffness have been reported. Many of the earlier studies were conducted in specific populations and heterogeneous measures of both arterial stiffness and periodontal status were used. In this population-based study we aimed to investigate whether periodontal pocketing and gingival bleeding are associated with ultrasound-based measures of arterial stiffness.

Methods

In this cross-sectional study, two sets of data based on the national Health 2000 Survey in Finland were formed. Data set I comprised never-smoking 45–64-year-old dentate (≥ 10 natural teeth), non-diabetic, non-rheumatic, non-obese (BMI ≤ 30 kg/m2), non-hypertensive subjects with no coronary artery disease or ongoing lipid-lowering medications (n = 157). Data set II was formed of an unrestricted 45–74-year-old dentate population (n = 536). Four arterial stiffness measures (carotid artery compliance, Peterson’s elastic modulus, Young’s elastic modulus and beta stiffness index) based on an ultrasound examination of the common carotid artery were used. Periodontal parameters included the number of teeth with ≥ 4 mm deep periodontal pockets and the number of sextants with gingival bleeding. β-estimates, confidence intervals, and p-values were obtained from linear regression models.

Results

In Data set I, the adjusted β-estimates for the association between the number of teeth with ≥ 4 mm deep periodontal pockets and Peterson’s elastic modulus and Young’s elastic modulus were 15.80 (p = 0.12) and 61.02 (p = 0.22), respectively. The respective β-estimates were 31.06 (p = 0.17) and 121.16 (p = 0.28) for the association between the number of bleeding sextants and these two stiffness measures. The results in Data set II were in line with the results in Data set I, with the exception that the adjusted β-estimates for the associations between Peterson’s elastic modulus and Young’s elastic modulus and periodontal parameters were closer to null.

Conclusions

This population-based study did not provide evidence of an association between periodontal condition and arterial stiffness.

Periodontal health, cognitive decline, and dementia: A systematic review and meta-analysis of longitudinal studies

BACKGROUND

Emerging evidence indicates that poor periodontal health adversely impacts cognition. This review examined the available longitudinal evidence concerning the effect of poor periodontal health on cognitive decline and dementia.

METHODS

Comprehensive literature search was conducted on five electronic databases for relevant studies published until April 2022. Longitudinal studies having periodontal health as exposure and cognitive decline and/or dementia as outcomes were considered. Random effects pooled estimates and 95% confidence intervals were generated (pooled odds ratio for cognitive decline and hazards ratio for dementia) to assess whether poor periodontal health increases the risk of cognitive decline and dementia. Heterogeneity between studies was estimated by I2 and the quality of available evidence was assessed through quality assessment criteria.

RESULTS

Adopted search strategy produced 2132 studies for cognitive decline and 2023 for dementia, from which 47 studies (24 for cognitive decline and 23 for dementia) were included in this review. Poor periodontal health (reflected by having periodontitis, tooth loss, deep periodontal pockets, or alveolar bone loss) was associated with both cognitive decline (OR = 1.23; 1.05-1.44) and dementia (HR = 1.21; 1.07-1.38). Further analysis, based on measures of periodontal assessment, found tooth loss to independently increase the risk of both cognitive decline (OR = 1.23; 1.09-1.39) and dementia (HR = 1.13; 1.04-1.23). Stratified analysis based on the extent of tooth loss indicated partial tooth loss to be important for cognitive decline (OR = 1.50; 1.02-2.23) and complete tooth loss for dementia (HR = 1.23; 1.05-1.45). However, the overall quality of evidence was low, and associations were at least partly due to reverse causality.

CONCLUSIONS

Poor periodontal health and tooth loss appear to increase the risk of both cognitive decline and dementia. However, the available evidence is limited (e.g., highly heterogenous, lacking robust methodology) to draw firm conclusions. Further well-designed studies involving standardized periodontal and cognitive health assessment and addressing reverse causality are highly warranted.

Associations of diet quality, food consumption, eating frequency and eating behaviour with dental caries experience in Finnish children: a 2-year longitudinal study

We examined cross-sectional and longitudinal associations of dietary factors with caries experience in a population sample of 487 children aged 6-9 years at baseline examinations of the Physical Activity and Nutrition in Children (PANIC) Study. Altogether, 406 of these children attended 2-year follow-up examinations. Food consumption and eating frequency were assessed using 4-day food records, diet quality using the Baltic Sea Diet Score (BSDS) and eating behaviour using the Children's Eating Behavior Questionnaire. Caries experience was examined clinically. The cross-sectional associations of dietary factors with caries experience at baseline were analysed using linear regression and the longitudinal associations of dietary factors with a change in caries experience over follow-up using generalised mixed-effects regression adjusted for other risk factors. A higher consumption of high-fibre grain products (standardised regression coefficient β = -0·16, P = 0·003) and milk (β = -0·11, P = 0·025) and higher BSDS (β = -0·15, P = 0·007) were associated with lower caries experience, whereas a higher consumption of potatoes (β = 0·11, P = 0·048) and emotional overeating (β = 0·12, P = 0·025) were associated with higher caries experience. Higher snacking frequency (fixed coefficient β = 0·07, P = 0·033), desire to drink (β = 0·10, P = 0·046), slowness in eating (β = 0·12, P = 0·027) and food fussiness (β = 0·12, P = 0·018) were associated with higher caries experience, whereas enjoyment of food (β = -0·12, P = 0·034) and higher BSDS (β = -0·02, P = 0·051) were associated with lower caries experience.

Addressing the Experiences of Family Caregivers of Older Adults During the COVID-19 Pandemic in Finland

This cross-sectional study assessed the experiences of family caregivers of older adults during the COVID-19 pandemic. Participants were recruited (n = 101) between April and December 2019. We applied a mixed-method approach. Quantitative data were analyzed using an independent samples t-test and logistic regression analysis, and qualitative experiences with modified thematic content analysis. The mean age of the family caregivers was 76 years (SD = 7), and 72% were females. Experiences of loneliness and worry during the pandemic were evaluated by self-assessment. Approximately one-third of the participants reported loneliness and worry. These experiences were further associated with female sex, increased psychological distress and depressive symptoms, and decreased physical condition and social relationships. Family caregivers were also worried about the pandemic's impact on health and well-being. Thus, the COVID-19 pandemic has added an extra psychosocial load to family caregivers. The post-pandemic era requires increased attention to re-evaluating policies and services.

Informal caregivers' perceptions of oral care and their association with the use of oral health services: A cross‐sectional study among informal caregivers and their care recipients

Objective

This study aimed to describe informal caregivers' perceptions of the importance of oral care and investigate the association between these perceptions and the use of oral health services during the past year.

Background

There is limited research on informal caregivers' perceptions of oral care. These perceptions presumably influence oral self‐care along with caregivers' and care recipients' use of oral health services.

Materials and Methods

Baseline data from the multidisciplinary Lifestyle, Nutrition, and Oral health in caregivers (LENTO) intervention study were analyzed. Informal caregivers (n = 125) and care recipients (n = 120) ≥65 years of age and living in Eastern Finland participated in the study. Data were collected through semi‐structured interviews.

Results

A majority (81%) of the informal caregivers considered oral care very important. Informal caregivers who considered oral care very important had 10 or more years of education, and considered service fees reasonable were more likely to have visited oral health services during the past year than other caregivers. No association between informal caregivers' perceptions of oral care and care recipients' use of oral health services during the past year was observed.

Conclusions

The study provides insight into informal caregivers' perceptions of oral care, with most informal caregivers considering oral care to be very important. Our findings support what has been reported in previous studies in that favorable perceptions of oral care are associated with oral health service visits. This association, however, did not hold true for care recipients' use of services.

Association between periodontal condition and blood pressure is confounded by smoking

OBJECTIVE

To investigate the role of smoking as a confounding factor in the association between periodontal pocketing and blood pressure.

MATERIAL AND METHODS

After restriction to 45-64-year-old subjects without hypertension, diabetes, rheumatic diseases, obesity and with no history of cardiovascular diseases or ongoing lipid-lowering medications, the study population consisted of 307 subjects of the Health 2000 Survey in Finland. Systolic and diastolic blood pressure and pulse pressure (mmHg) were used as outcome variables. Periodontal condition was measured by the number of teeth with ≥4 mm periodontal pockets. β-estimates and 95% confidence intervals (CI) were obtained from linear regression models. Analyses were made in the whole study population and stratified according to smoking habits/history.

RESULTS

The number of teeth with ≥4 mm periodontal pockets associated statistically significantly with systolic blood pressure and pulse pressure in the whole study population. Among never-smokers or daily smokers, there were no consistent nor statistically significant associations between the number of teeth with ≥4 mm periodontal pockets and systolic/diastolic blood pressure or pulse pressure.

CONCLUSIONS

Smoking appeared to confound the association between periodontal condition and blood pressure. Thorough control for the effect of smoking was not obtained using multivariate models.

Oral health care quality as viewed by leading dentists and their superiors - a qualitative study

OBJECTIVE

The aim was to investigate how leading dentists and their superiors view oral health care quality, as they are in key positions to pursue high-quality care.

MATERIALS AND METHODS

We interviewed five leading dentists and three of their superiors from Southern Finland via semi-structured telephone interviews including themes based on the Institute of Medicine's six quality dimensions. The material was analysed using theory-driven content analysis.

RESULTS

Participants divided safety into occupational, instrumental and patient safety and considered timeliness as timing treatment clinically correctly. They also linked timeliness to patient-centeredness with wider opening-hours and quick access to care. Effective care was considered as a prerequisite for efficiency. Participants saw effectiveness as treating the illness, not the number of treatment measures. Leading dentists took survival time of fillings and cost per operation as a measurement of efficiency, and the superiors measured efficiency by the number of treated patients or visits. The leading dentists considered the equal treatment of patients, whereas the superiors took the amount of care provided with public resources and co-workers into consideration.

CONCLUSIONS

The participants shared similar views of oral health care quality which should enable cooperation. Observed minor differences relate to professional background and leading positions.

Individually tailored nutritional guidance improved dietary intake of older family caregivers: a randomized controlled trial

PURPOSE

Older family caregivers (FCs) are vulnerable to insufficient dietary intake and risk of malnutrition. The aim of this study was to assess the impact of individually tailored nutritional guidance on the dietary intake and nutritional status of older FCs and their care recipients' (CRs') nutritional status.

METHODS

This study was a randomized controlled 6-month nutrition intervention in Eastern Finland. The inclusion criteria for FCs were having a home-living CR aged 65 or above and a valid care allowance. The exclusion criterion was CR receiving end-of-life care at baseline. Participants were randomly assigned to an intervention (FCs n = 63, CRs n = 59) and a control (FCs n = 50, CRs n = 48) group. Individually tailored nutritional guidance targeted to FCs was given to an intervention group by a clinical nutritionist. The main outcomes were dietary intake (3-day food record).

RESULTS

After the 6-month intervention, 63 FCs and 59 CRs in the intervention group and 50 FCs and 48 CRs in the control group were analyzed. In the intervention group of FCs, the intakes of protein, riboflavin, calcium, potassium, phosphorus, and iodine differed significantly (p < 0.05) compared to the control group. In addition, the intake of vitamin D supplementation improved in the intervention group of the FCs and CRs (p < 0.001).

CONCLUSION

Individually tailored nutrition guidance improves the intake levels of crucial nutrients, such as the intake levels of protein, vitamin D, and calcium of the FCs. Further studies are warranted to optimize the methods to improve the nutrition of FCs. Registration number of Clinical Trials: ClinicalTrials.gov NCT04003493 (1 July 2019).

Genome-wide association study of periodontal pocketing in Finnish adults

Background

A genome‐wide association study is an analytical approach that investigates whether genetic variants across the whole genome contribute to disease progression. The aim of this study was to investigate genome-wide associations of periodontal condition measured as deepened periodontal pockets (≥ 4 mm) in Finnish adults.

Methods

This study was based on the data of the national Health 2000 Survey (BRIF8901) in Finland and the Northern Finland Birth Cohort 1966 Study totalling 3,245 individuals. The genotype data were analyzed using the SNPTEST v.2.4.1. The number of teeth with deepened periodontal pockets (≥ 4 mm deep) was employed as a continuous response variable in additive regression analyses performed separately for the two studies and the results were combined in a meta-analysis applying a fixed effects model.

Results

Genome-wide significant associations with the number of teeth with ≥ 4 mm deep pockets were not found at the p-level of < 5 × 10⁻⁸, while in total 17 loci reached the p-level of 5 × 10⁻⁶. Of the top hits, SNP rs4444613 in chromosome 20 showed the strongest association (p = 1.35 × 10⁻⁷).

Conclusion

No statistically significant genome-wide associations with deepened periodontal pockets were found in this study.

Effect of smoking on periodontal health and validation of self-reported smoking status with serum cotinine levels

OBJECTIVE

To investigate whether self-reported smoking and serum cotinine levels associate with periodontal pocket development and to determine the accuracy of self-reported smoking using serum cotinine.

MATERIALS AND METHODS

This 4-year prospective cohort study included data from 294 dentate adults, aged ≥30 years, who participated in both the Health 2000 Survey and the Follow-up Study of Finnish Adults' Oral Health. Subjectively reported smoking status (daily smokers n = 62, occasional smokers n = 12, quitters n = 49, and never-smokers n = 171), serum cotinine levels, demographic factors, education level, dental behaviours and medical history were collected at baseline. The outcome measure was the number of teeth with periodontal pocketing ≥4 mm over 4 years.

RESULTS

Self-reported daily smokers had 1.82 (95% CI: 1.32-2.50) higher incidence of deepened periodontal pockets than never-smokers. A positive association was observed between serum cotinine (≥42.0 μg/L) and the development of periodontal pockets. The misclassification rate of self-reported smoking was 6%.

CONCLUSIONS

Both self-reported daily smoking and higher serum cotinine were associated with periodontal pocket development. Self-reported smoking was fairly accurate in this study. However, higher cotinine levels among a few self-reported never-smokers indicated misreporting or passive smoking. Thus, self-reports alone are not enough to assess the smoking-attributable disease burden.

Low-grade inflammation as a potential mediator between depressive symptoms and temporomandibular pain: an 11-year follow-up study on Finnish adults

BACKGROUND

Low-grade inflammation and depressiveness have been associated with chronic pain conditions.

OBJECTIVE

To examine whether low-grade inflammation mediates the association between depressive symptoms and temporomandibular (TM) pain in Finnish adults based on the Health 2000/2011 Surveys (BRIF8901).

METHODS

The sample comprised subjects who underwent clinical TM pain examination (pain on palpation of the masticatory muscles and temporomandibular joints) in 2000 and 2011 and responded to questions on TM pain symptoms in 2011. The serum level of hs-CRP was obtained in both years, and depressiveness was assessed using the Beck Depression Inventory-21 (BDI-21) in 2000 and BDI-13 in 2011. Four subgroups were formed based on the presence of TM pain: No pain, pain in 2000-only, pain in the 2011-only, and pain in both-years. Analyses included Rao Scott's chi-square test cross-sectionally, and multinomial logistic regression longitudinally with the level of hs-CRP and BDI-21 score in 2000 as predictors. Mediation was tested using Hayes A. Processv3.5.

RESULTS

Higher BDI-21/-13 and hs-CRP levels corresponded to higher prevalences of TM pain in both years. Longitudinally, in men, higher hs-CRP level predicted TM pain in 2000-only and TM pain in both-years. Higher BDI-21 score predicted having TM pain in 2011-only. In women, higher BDI-21 score predicted TM pain in 2000-only and having TM pain in both-years. Both BDI-21 and hs-CRP had a direct effect on TM pain outcome with no mediation detected.

CONCLUSION

While depressiveness may increase the risk of chronic TM pain in women, the risk in men is increased by low-grade inflammation.

Inadequate Intake of Energy and Nutrients Is Common in Older Family Caregivers

The aim of this study was to investigate the nutritional status, determinants of nutritional status, and adequacy of energy and nutrient intake of older family caregivers (FC). Nutritional status was measured using the Mini Nutritional Assessment (MNA), plasma albumin, plasma pre-albumin, and blood hemoglobin concentrations. Dietary intake was assessed with a three-day food record. Comorbidity (B −0.283, 95% CI: −0.492, −0.073), quality of life (B 0.045, 95% CI: 0.018, 0.072) and energy intake (B 0.001, 95% CI: 0.000, 0.002) were significantly associated with the MNA scores of the older FCs (n = 125). It was common for FCs to have lower than recommended intakes of energy and several nutrients, independent of the risk of malnutrition assessed by the MNA. Over half of the FCs had inadequate intake of protein, vitamin A, folate, and fiber, and 25–40% of the FCs had a low intake of vitamin D, vitamin E, thiamine, magnesium, iron, and selenium. It is important to follow both the nutritional status and dietary intake of older FCs regularly to find those with lower than recommended nutrient intake and to avoid poor nutritional status and its adverse effects hampering their ability to serve as FCs.

The reproduction of gender differences in early career choices and professional identity of young dentist in Finland

INTRODUCTION

For over the last 20 years, approximately 70% of working dentists in Finland have been women. However, there is internal division of the profession along gender lines. Female dentists work more often in the public sector and male dentists in the private sector. The aim of this study was to investigate the gender differences in young dentists' early career choices, specialization plans, values and perceptions of professional identity.

MATERIALS AND METHODS

The data were taken from a national e-mail questionnaire study called "Young Dentist," which was sent to 458 dentists who had received their licence to practise dentistry in 2014-2016 from all four universities with dental curricula in Finland. A total of 52% young dentists (n = 238) answered the questionnaire.

RESULTS AND DISCUSSION

The results indicated that whereas female dentists were more likely to perceive themselves as comforters, social workers and health promoters, male dentists tended to perceive themselves as technicians. These professional identities were interrelated with early-stage career choices in which female dentists worked more often in the public than in the private sector when compared to male dentists. There were also clear gender differences in the importance of values and the specialization plans of the young dentists.

CONCLUSION

Young dentists in Finland make career choices and develop professional identity in accordance with the attributes traditionally associated with cultural ideals related to femininity and masculinity.

Association of psychological distress and widespread pain with sympatoms of temporomandibular disorders and self-reported bruxism in students

Objectives

The aim of this study was to evaluate the association of psychosocial distress and widespread pain with self‐reported symptoms of temporomandibular disorders (TMD) and bruxism, in two cross‐sectional surveys in 2012 and 2016, and whether there are temporal changes in the magnitude of associations.

Materials and methods

The data were gathered from Finnish university students in 2012 and 2016. TMD symptoms were assessed with three validated questions and bruxism with one frequently used question. Psychosocial distress was assessed with the General Health Questionnaire‐12 (GHQ‐12), and widespread pain with questions of pain in the extremities, the neck or upper back, and lower back. The associations of GHQ‐12, widespread pain and background variables with TMD symptoms and bruxism were analyzed with chi‐square tests, t‐test and binary logistic regression models stratified by gender, and adjusted for age‐group, self‐reported general health/wellbeing and presence of widespread pain.

Results

Higher GHQ‐12 score and presence of widespread pain were significantly associated with TMD symptoms in both genders at both time points. The association of higher GHQ‐12 score with sleep bruxism and awake bruxism were inconsistent. In the adjusted model higher GHQ‐12 score and widespread pain were significantly related to TMD pain symptoms in both genders at both time points, and to bruxism in 2012. Between the two time points a greater variability in these associations was seen in men than in women.

Conclusions

Psychological distress and widespread pain are significant determinants in perceived TMD pain and bruxism among students. No significant temporal alterations were observed.

Systemic immune response against the oral pathogens Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans is associated with the formation and rupture of intracranial aneurysms

BACKGROUND AND PURPOSE

Periodontal infections are associated with the formation and rupture of intracranial aneurysms (IAs). This study investigated the role of two key periodontal pathogens, Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans.

METHODS

Immunoglobulin A (IgA) and IgG antibodies against P. gingivalis and A. actinomycetemcomitans were measured with enzyme immune assay from the serum of 227 IA patients, of whom 64 also underwent clinical oral examination. As a control group, 1096 participants in a cross-sectional health survey, Health 2000, underwent serological studies and oral examination. Logistic regression was used for multivariate analysis. Immunohistochemistry was performed to demonstrate bacteria-derived epitopes in the IA wall.

RESULTS

Widespread gingivitis and severe periodontitis were more common in IA patients than in controls (2× and 1.5×, respectively). IgA antibodies against P. gingivalis and A. actinomycetemcomitans were 1.5× and 3-3.4× higher, respectively, in both unruptured and ruptured IA patients compared to controls (p ≤ 0.003). IgG antibodies against P. gingivalis were 1.8× lower in unruptured IA patients (p < 0.001). In multivariate analysis, high IgA, but low IgG, antibody levels against P. gingivalis (odds ratio [OR] = 1.4, 95% confidence interval [Cl] = 1.1-1.8 and OR = 1.5, 95% Cl = 1.1-1.9; OR = 0.6, 95% Cl = 0.4-0.7 and OR = 0.5, 95% Cl = 0.4-0.7) and against A. actinomycetemcomitans (OR = 2.3, 95% Cl = 1.7-3.1 and OR = 2.1, 95% Cl = 1.5-2.9; OR = 0.6, 95% Cl = 0.4-0.8 and OR = 0.6, 95% Cl = 0.5-0.9) were associated with the risk of IA formation and rupture. Immunohistochemistry showed P. gingivalis epitopes in the IA wall.

CONCLUSIONS

Exposure to the periodontal pathogens P. gingivalis and A. actinomycetemcomitans and dysfunctional acquired immune response against them may increase the risk of IA formation and IA rupture.

Dental caries among Finnish teenagers participating in physical activity and diet intervention: association with anthropometrics and behavioural factors

Background

An association between childhood anthropometric measurements and dental caries is conflicting. The prevalence and severity of dental caries and its association with anthropometric and behavioural factors, were investigated among Finnish teenagers.

Methods

The study sample comprised 202 15–17-year-old participants in the Physical Activity and Nutrition in Children (PANIC) Study. Dental caries findings were recorded using International Caries Detection and Assessment System (ICDAS) criteria, including activity estimation; numbers of decayed teeth (DT) and decayed, missing and filled teeth (DMFT) were recorded. Body weight, height and waist circumference were measured and respective body mass index (BMI) was calculated. Body fat percentage was assessed by dual-energy X-ray absorptiometry. Health-related behaviours and consumption of food and drinks were assessed using questionnaires, and intake of nutrients using a 4-day food record.

Results

Mean DMFT for all the participants was 2.4 (SD = 2.9), DT 0.6 (SD = 1.3), and 36% had DMFT = 0. No difference between genders was observed. In bivariate analyses, use of sugar-sweetened beverages (SSB) three times or less per week and not having used snuff associated significantly, whereas higher carbohydrate intake (E%), toothbrushing less often than twice a day and higher caries experience at baseline almost significantly with DT > 0. In adjusted regression analyses, frequent use of SSB and higher carbohydrate intake increased the odds for DT > 0. Additionally, higher carbohydrate intake (E%) and infrequent tooth brushing significantly associated with a higher number of DT.

Conclusion

Caries prevalence is still low and similar in Finnish teenage girls and boys. Behavioural factors are, but anthropometric factors are not associated with dental caries.

Association of temporomandibular disorder-related pain with severe headaches-a Bayesian view

Objectives

Association of temporomandibular disorders (TMD)-related pain with severe headaches (migraine and tension-type headaches [TTH]) was studied over a follow-up period of 11 years.

Materials and methods

The data used was from two nationally representative health surveys in Finland—the Health 2000 Survey (baseline) and the Health 2011 Survey (follow-up) (Bioresource Research Impact Factor [BRIF] 8901)—conducted by the Finnish Institute for Health and Welfare (THL). The primary dataset of the current study included a subset of the population undergoing a clinical oral examination, including TMD examination, at baseline, and answering the questions related to severe headaches, both at baseline and at follow-up (n = 530). From the primary dataset, two datasets were created to study the onset of migraine (dataset 1) and TTH (dataset 2) separately. Dataset 1 included participants healthy of migraine, but not other headaches, at baseline (n = 345), and dataset 2 participants healthy of TTH and other headaches, except migraine, at baseline (n = 464). Bayesian logistic regression models with weakly informative priors were utilized to assess the association of muscle-related TMD pain (mTMD) at baseline and temporomandibular joint-related TMD pain (jTMD) at baseline with the presence of migraine and TTH at follow-up.

Results

Neither of the baseline TMD-related pain variables were associated with the presence of migraine at follow-up (posterior effect estimates-0.12, 95% credible interval [CI] -0.49–0.24, and 0.11, 95% CI -0.38–0.59, for mTMD and jTMD, respectively), whereas mTMD at baseline (posterior effect estimate 0.36, 95% CI 0.02–0.69), but not jTMD at baseline (posterior effect estimate -0.32, 95% CI -0.94–0.25), was associated with the presence of TTH at follow-up. Bayesian sensitivity analyses revealed that the estimates of the regression models were stable, demonstrating sufficient validity and consistency of the estimates.

Conclusion

These results indicate that diverse mechanisms may exist behind the associations of TMD-related painful conditions with different types of severe headaches.

Clinical relevance

TMD-related pain is a frequent comorbidity of severe primary headaches. Therapy of severe primary headaches may thus benefit significantly with the incorporation of a multi-disciplinary clinical team.

Temporomandibular-disorder-related pain as a predictor of severe headaches

OBJECTIVE

The current study aimed to investigate the association of temporomandibular disorders (TMD)-related pain with the presence of migraine or tension-type headaches (TTH) over a follow-up period of 11 years.

METHODS

Data sets from Finnish national health surveys, the Health 2000 Survey (baseline), and the Health 2011 Survey (follow-up) were utilized. Study participants are undergoing clinical TMD examination at baseline and answering questions related to the presence of migraine and TTH at follow-up were included in the study (n = 530). For analyses, the study sample was divided into two data sets: One with those excluded suffering from migraine at baseline (Data set I, n = 345), and the other excluding those having TTH at baseline (Data set II, n = 464).

RESULTS

Based on logistic regression modelling, no consistent association between TMD-related pain and the presence of migraine was observed, although jTMD associated with elevated estimates for migraine. However, participants with muscle-related TMD pain (mTMD) at baseline had markedly higher odds for having TTH at follow-up than participants without mTMD at baseline (OR 2.1, 95% CI 1.2-3.8). Joint-related TMD pain (jTMD) at baseline was inversely associated with the presence of TTH at follow-up (OR 0.4, 95% CI 0.1-1.3).

CONCLUSION

Contrasting patterns of the associations of TMD-related pain with different severe headaches point towards a more thorough and systematic research approach are needed to understand the mechanisms behind these associations.

Patients' multifaceted views of dental fear in a diagnostic interview

OBJECTIVES

The aim was to examine how patients describe and perceive their dental fear (DF) in diagnostic interviews.

MATERIAL AND METHODS

The sample consisted of dentally anxious patients according to the Modified Dental Anxiety Scale (MDAS), who had problems coping with conventional dental treatment. The voluntary participants (n = 7, aged 31-62 years) attended a diagnostic interview aiming to map their DF before dental treatment. The data were analysed by theory-driven qualitative content analysis. The themes consisted of the four components of DF: emotional, behavioural, cognitional, and physiological, derived from the Index of Dental Anxiety and Fear.

RESULTS

Within these four themes, treated as the main categories, 27 additional categories related to the patients' interpretations of DF were identified in three contexts: before, during and after dental treatment. 10 categories depicted difficult, uncontrollable, or ambivalent emotions; nine depicted behavioural patterns, strategies, or means; five depicted disturbing, strong, or long-lasting physiological reactions, including panic and anxiety symptoms. The remaining three categories related to cognitive components.

CONCLUSIONS

The results indicate that dental care professionals may gain comprehensive information about their patients' DF by means of four component-based diagnostic interviews. This helps them to better identify and encounter patients in need of fear-sensitive dental care.

TRIAL REGISTRATION NUMBER

NCT02919241.

Perceived oral health and oral health behaviours among home-dwelling older people with and without domiciliary care

OBJECTIVES

The aim was to compare the perceived oral health and oral health behaviours of home-dwelling older people with and without domiciliary care.

BACKGROUND

Oral health is poor in long-term care, but less is known about perceived oral health of home-dwelling older people receiving domiciliary care.

MATERIALS AND METHODS

Data from the Health 2000 and Health 2011 surveys (BRIF8901) were used. Interview participants were at least 70 years old and living at home with or without domiciliary care (n = 1298 in 2000 and n = 1027 in 2011). Differences in perceived oral health (subjective oral health, pain, eating difficulties) and oral health behaviours (hygiene, use of services) were compared based on the use of domiciliary care and stratified by gender. Differences between groups were compared with the chi-square test.

RESULTS

In 2011, compared to non-clients, domiciliary care clients more often had poor subjective oral health (40.3% vs. 28.9%, P = .045). In both surveys, they also used oral health services less recently (2000, 76.4% vs. 60.9%; and 2011, 61.1% vs. 46.6%) and more often had difficulties chewing hard food (2000, 50.6% vs. 34%, P < .001; and 2011, 38.4% vs. 20.7%, P < .001) than non-clients. In 2000, clients had more difficulty eating dry food without drinking (39.5% vs. 21.6%, P < .001) and cleaning their teeth and mouth (14.3% vs. 1.1%, P < .001) than non-clients. Women clients in 2011 brushed their teeth less often than non-clients (43.5% vs. 23.7%, respectively, P = .001).

CONCLUSION

Domiciliary care clients have poorer perceived oral health, and greater difficulties with eating and oral hygiene maintenance than non-clients.

Adherence to oral appliance treatment and its determinants in obstructive sleep apnoea patients

BACKGROUND AND OBJECTIVES

Treatment effectiveness, in terms of health benefits, is a composite of efficacy and adherence. Oral appliance (OA) usage is mainly based on self-reports, but nowadays, objective adherence monitoring for OAs is available. This study investigated the objective OA adherence and its determinants in obstructive sleep apnoea (OSA) patients.

MATERIALS AND METHODS

There were 29 subjects who were treated with OA; mean [SD] age 51.4 [11.1]; mean apnoea-hypopnoea index (AHI) [SD] 19.5 [10.0]. Anthropometric and sociodemographic parameters, AHI, daytime sleepiness, snoring, and adverse effects of OA as potential determinants were evaluated. Patients were classified as regular users if they wore OA at least 4 hours nightly 5-7 nights a week. Statistical analyses included the chi-square test, t-test, Mann-Whitney U-test, and linear regression analyses.

RESULTS

At the 3-month follow-up, 68% of subjects were regular users and at 12-month follow-up, 64%. AHI, sociodemographic parameters, or adverse effects were not associated with OA adherence. Snoring seemed to improve weakly adherence, whereas mandibular retrusion reduced the weekly use, and smoking the nightly use of OAs.

LIMITATIONS

The follow-up time was short, and there were a relatively small number of patients with obtainable adherence data, therefore it is difficult to establish if OA therapy alone is a successful long-term treatment option for OSA patients.

CONCLUSIONS/IMPLICATIONS

Adherence to OA therapy is mainly the outcome of patients' subjective comfort in everyday life through eliminating social disturbance of snoring. To best meet a subject's individual treatment need and to prevent suboptimal use of OA, a patient-tailored therapy including digital wear-time documentation is recommended.

Age-Period-Cohort Analysis of Toothbrushing Frequency in Finnish Adults: Results From Annual National Cross-Sectional Surveys From 1978 to 2014

Objectives

No previous study has analysed age-, period-, and cohort-related long-term trends in toothbrushing frequency among adults using a nationally representative data set. Our aim was to study age, period, and cohort effects on toothbrushing among 15- to 64-year-olds in Finland from 1978 to 2014.

Methods

Data were gathered by nationally representative random cross-sectional samples of 15- to 64-year-old Finns annually from 1978 to 2014, during which response rates decreased from 84% to 53%. The final pooled sample size was 119,665. An age-period-cohort model was used to separate the effects of age, period, and cohort on trends in men's and women's toothbrushing frequency.

Results

From 1978 to 2014, the proportion of respondents who brushed at least twice a day or once a day increased from 42% to 66% and from 83% to 95%, respectively. The proportion of respondents who brushed at least twice a day increased from 27% to 53% among men and from 60% to 75% among women. Increases in at least once-a-day toothbrushing were smaller in both sexes, and in women the increase was minimal over the study years. The increase in toothbrushing frequency occurred particularly among those older than 40 years of age. In men, toothbrushing frequency increased steadily cohort by cohort (cohort effect) and within a single cohort as men in the cohort got older (longitudinal age trend). Instead, in women the cohort effect and longitudinal age trend in toothbrushing were smaller at both frequency thresholds.

Conclusions

On the population level, favourable changes in toothbrushing habits occurred among adult Finns from 1978 to 2014, especially in men.

Changes and determinants of unmet oral health treatment need

OBJECTIVES

Our aim was to describe the nature and determinants of the changes in unmet treatment need between the years 2000 and 2011 after a major oral healthcare reform and a wider supply of subsidized care.

METHODS

The study used a longitudinal sample (n = 3838) of adults who had participated in both the Health 2000 and 2011 surveys (BRIF 8901). Those reporting self-assessed treatment need without having visited a dentist in the previous 12 months were categorized as having unmet treatment need. Two logistic regression models were applied to determine the effects of predisposing and enabling factors on change in unmet treatment need. Model 1 was conducted among those who reported unmet treatment need in 2000 and evaluated the determinants for improvement. Model 2 was conducted among those who did not have unmet treatment need in 2000 to evaluate the risk factors for having unmet treatment need by 2011.

RESULTS

Unmet treatment need was reported by 25% of the participants in 2000 and by 20% in 2011. Those with unmet treatment need in 2000 were less likely to report improvement by 2011 if they had poor subjective oral health, basic or intermediate education level, or poor perceived economic situation in 2000. Those who did not have unmet treatment need in 2000 were more likely to have it in 2011 if they were males or from northern Finland and less likely to if they came from central Finland or were older.

CONCLUSIONS

The wider supply of subsidized oral health care during the study years did not lead to complete elimination of treatment need. The determinants of unmet treatment need, such as low or intermediate education level and perceived economic difficulties, should be used in targeting the services at those with treatment need to achieve better oral health outcomes.

Is the technical quality of root fillings associated with socioeconomic status?

Background

Socioeconomically better-off tend to receive better care, and to benefit more from care they receive, than the less well-off. The technical quality of root fillings can be assessed radiographically. Our aim was to investigate differences in the technical quality of root fillings according to socioeconomic status not studied before.

Methods

In the Finnish Health 2000 Survey, a sample of 8 028 over 29-year-old adults was selected by a stratified two-staged cluster sampling. Of these, 6 115 (76%) underwent panoramic radiography. A total of 7 986 endodontically treated teeth were detected among 3 905 participants. The criterion for a technically inadequate root filling was a distance from the root filling to the root apex of over 3 mm or material over the apex. Education, employment status and household income were used as measures of socioeconomic status. Differences in the quality of root fillings according to socioeconomic status were investigated using the Multiple Additive Regression Tree mediation analysis, taking into account age, gender and tooth type of the root filled tooth.

Results

Almost half (47%) of the root fillings were inadequate. Root filling quality was associated particularly with age of the participant and type of tooth. Mediation analysis showed that among the over 64-year-olds, higher education or income were associated with a slightly higher probability of inadequate root filling quality (ORs 1.15-1.20, p &lt; 0.05). Among the under 65-year-olds, age of the participant and type of tooth explained the observed variations in root filling quality according to socieconomic status, and socioeconomic status had no influence (ORs 0.99-1.02, p &gt; 0.05).

Conclusions

Those in a lower socioeconomic status had not received poorer endodontic treatment quality. It seems that those in a lower socioeconomic status are not prone to receive poorer quality care in endodontic setting, that they tend to receive in longer and more socially complex treatments.

Key messages

Variations in the technical quality of root fillings by socioeconomic status has not been studied. Lower socioeconomic status was not associated with poorer technical quality of root fillings.