Oral health promotion and labour market prospects of socially disadvantaged and unemployed people - a randomised controlled trial.

BACKGROUND: Previous studies indicate that poor oral health may constitute a barrier for labour market success. This study examines whether an oral health promotion intervention has an effect on economic self-support, and proximity to the labour market, among socially disadvantaged unemployed people. METHODS: From April-June 2018, we enrolled 273 vulnerable people on welfare benefits into a randomised controlled trial. Participants were allocated to either control (n=159), or intervention (n=114). Intervention consisted of individual support to improve individuals' oral health by reducing significant barriers to dental care. Ten participants were excluded, leaving 263 participants (intervention n=110, control n=153) for analyses. A national register was used to assess economic self-support and proximity to the labour market within 1.5 years post-intervention. Items of information on health and socio-demographics were obtained from a questionnaire and from national registers. Logistic and multiple linear regression modelling was performed. RESULTS: Overall, higher frequencies of economic self-support and proximity to the labour market were found in the intervention group, although no significant results were seen for economic self-support alone. Adjusted models revealed significantly higher odds (odds ratio=1.85, 95% confidence interval 1.08-3.17) among the intervention group of achieving proximity to the labour market after 12 months. After 18 months, the intervention group had on average obtained 5 more weeks (95% confidence interval 0.02-9.99) with proximity to the labour market. CONCLUSIONS: Overall, the oral health promotion intervention had a positive effect on proximity to the labour market in the intervention group, especially within the first year of the study. Our findings suggest that interventions promoting oral health among socially disadvantaged and unemployed groups may contribute to social rehabilitation.

Patient-reported effect in patients receiving implant or tooth-supported fixed prosthesis.

OBJECTIVES: To compare the patient-reported effect of treatment with implant-supported fixed prosthesis (ISFP) and fixed dental prosthesis (FDP) in patients with a small number of tooth losses to replace. METHODS: From a population of 155 patients receiving either ISFP or FDP, 68 patients were matched in pairs based on gender, number of teeth replaced, zone of replacement, age and number of remaining teeth. The patient-reported effect was prospectively obtained by measuring change in the short-form oral health impact (OHIP-14) from before to one month after treatment. Effect size (ES), standardised response mean (SRM) and a minimal important difference of two units were applied to estimate the magnitude of the change. RESULTS: Both the ISFP and FDP groups decreased significantly in OHIP-14 after treatment (P < .01). The change was not significantly different between the ISFP and FDP groups. The magnitude of the change was for both treatments moderate and slightly higher in the ISFP group (ES = 0.52 and SRM = 0.58) than in the FDP group (ES = 0.48 and SRM = 0.47). Applying the minimal important difference showed that 23 participants in the ISFP group and 21 in the FDP group had good effect. CONCLUSIONS: The patient-reported effect of treatment with ISFP or FDP was similar, clinically meaningful and of moderate magnitude in patients with a small number tooth losses to replace.

Cobalt release and complications resulting from the use of dental prostheses.

BACKGROUND: Cobalt release from dental prostheses has been shown to elicit allergic reactions in cobalt-allergic patients. It is therefore important to investigate whether these prostheses are possible sources of sensitization. OBJECTIVES: To assess (i) cobalt release from dental prostheses and (ii) allergic reactions to components of dental prostheses, and (iii) to investigate the oral mucosa for inflammation 1-5 years after insertion of the prostheses. METHOD: Clinical oral examination was conducted in 66 patients with 84 dental prostheses. Cobalt release from 84 functional (used) and 32 non-functional (new) prostheses was investigated with the cobalt spot test. Contact allergy was assessed by patch testing. Smear tests for Candida spp. were performed in patients showing signs of inflammation of the oral mucosa. The prostheses were assessed for biological and technical complications. RESULTS: None of the functional prostheses released cobalt, whereas this was observed in 24 of 32 non-functional prostheses. None of the patients had contact allergy to cobalt. Of the 66 patients, 11 showed signs of inflammation of the oral mucosa, 2 had oral candidiasis, 16 had ill-fitting prostheses, and all had insufficient oral hygiene. CONCLUSIONS: Dental prostheses released cobalt during the fabrication stages, but not 1-5 years after insertion. No allergic reactions were observed. Signs of inflammation were related to candidiasis, insufficient oral hygiene, and ill-fitting prostheses.

Validation of the prosthetic esthetic index.

OBJECTIVES: In order to diagnose impaired esthetics and evaluate treatments for these, it is crucial to evaluate all aspects of oral and prosthetic esthetics. No professionally administered index currently exists that sufficiently encompasses comprehensive prosthetic esthetics. This study aimed to validate a new comprehensive index, the Prosthetic Esthetic Index (PEI), for professional evaluation of esthetics in prosthodontic patients. MATERIAL AND METHODS: The content, criterion, and construct validity; the test-retest, inter-rater, and internal consistency reliability; and the sensitivity of the index were evaluated in 95 patients in need of oral rehabilitation. RESULTS: The content validity was sufficient: Most correlations between aspects of the PEI were low (R > 0.5). The PEI was significantly correlated to the Dental Aesthetic Index (R = 0.52) and could distinguish between subgroups of patients indicating sufficient criterion and construct validity. The test-retest reliability showed an Interclass Correlation Coefficient (ICC) of 0.80, the internal consistency reliability showed a Cronbach's alpha of 0.7; and the inter-rater reliability was excellent, with an ICC of 0.94. The PEI could furthermore distinguish between participants and controls, indicating sufficient sensitivity. CONCLUSION: The PEI is considered a valid and reliable instrument involving sufficient aspects for assessment of the professionally evaluated esthetics in prosthodontic patients. CLINICAL RELEVANCE: With the validated PEI available, the clinician can directly assess and document the comprehensive esthetics of prosthodontic patients in a structured manner.

Influence of self-esteem and negative affectivity on oral health-related quality of life in patients with partial tooth loss.

UNLABELLED: To meaningfully interpret oral health-related quality of life (OHRQoL) measures, the influence of personality traits must be investigated. OBJECTIVES: To investigate and quantify the influence of self-esteem and negative affectivity (NA) on OHRQoL. It was hypothesized that low self-esteem and high NA would be associated with worse OHRQoL. METHODS: OHRQoL measured by the Oral Health Impact Profile 49 (OHIP-49), self-esteem measured by the Rosenberg Self-Esteem Scale (RSES), NA measured by the Eysenck Personality Inventory Questionnaire (EPI-Q), global oral rating of oral comfort and controlling variables (gender, age, number of teeth, experience of wearing removable dental prostheses (RDP), location of missing teeth and zone of missing teeth) were collected from 81 patients with partial tooth loss, signed in for treatment with RDP. RESULTS: Bivariate analyses showed that the EPI-Q score had the highest correlation with OHIP-49 score (R = 0.5). Both EPI-Q and RSES score had a stronger correlation with psychosocial items than physical/functional items of the OHIP-49. In the multivariate analyses, the controlling variables alone explained 17.75% of the variance in OHIP-49 score, while addition of EPI-Q score, RSES score and both EPI-Q and RSES score explained additionally 11.64%, 6.07% and 14.12%, respectively. For each unit increase in EPI-Q score, the OHIP-49 score increased 5.1 units and for each unit increase in RSES score, the OHIP-49 score decreased 1.1. NA was statistically and clinically significantly higher and self-esteem was statistically significantly lower in patients reporting worse oral comfort. CONCLUSION: NA had the strongest and most clinically meaningful influence, but both NA and self-esteem was found to influence OHRQoL; low self-esteem and high NA was associated with worse OHRQoL. This indicates the possibility to explain some of the impact of tooth loss on OHRQoL based on personality traits.