The utilization of dental care services results from the interaction of biological determinants with sociocultural, family and community variables, as well as from some characteristics of health systems. The objective of this study was to assess the individual factors associated with the use of dental care services among low-income adult and elderly individuals living in the catchment area of the Family Health Strategy, in Ponta Grossa, PR. The sample included 246 individuals, aged 35 years or over, who answered a questionnaire on socioeconomic conditions, perceived needs, and access to dental care services. Data analysis was performed according to a conceptual framework based on Andersen's Behavioral Model. Non-recent use of dental care services was considered as the dependent variable in the logistic regression analysis models. There were high prevalences of self-reported oral health diseases and teeth loss. About 40% of the adults and 67% of the elderly had not made any dental visit in the past 3 years. Individuals without ownership of the family home, with inadequate oral hygiene habits and who wore complete dentures had higher odds of having gone to the dentist longer ago. The fact of having a regular source of dental care was identified as a protective factor in the analysis. The conceptual framework confirmed the presence of social and psychosocial inequalities in the use of dental services among low-income adult and elderly individuals.

The conceptual framework has confirmed the presence of social and psychosocial inequalities on the utilization pattern of dental services for low-income children. The individual determinants seem to be important predictors of access.

Intersetorialidade nas ações de promoção de saúde realizadas pelas equipes de saúde bucal de Curitiba (PR)Intersectoriality

OBJECTIVE: To describe the prevalence of oral health impact on quality of life and its association with the dental condition and sociodemographic factors of homeless people. METHODS: The sample was composed of 116 adults, temporarily attended by a public institution in the municipality of Goiânia, state of Goiás. Interviews were carried out including the Oral Impact on Daily Performance instrument and sociodemographic aspects. Clinical examinations were done by a trained examiner considering criteria of the World Health Organization. We evaluated dental caries (DMFT index) and use or need to use some type of prosthesis. For the statistical analysis of data, we used Pearson’s Chi-square and Fisher’s exact tests and Poisson regression with robust variance. RESULTS: Of the total respondents, 81.9% had at least one daily performance affected by dental problems in the six months prior the survey. The most prevalent dental conditions were: need for lower arch (76.7%) and upper arch prosthesis (69.0%); untreated caries (75.9%); and high DMFT (57.8%). In bivariate analysis, only the need for upper prosthesis variable was associated with the impact (high Oral Impact on Daily Performance). In the regression model, adjusted for time in the institution, age, and sex, this association remained significant (p = 0.015). Individuals without need for upper prosthesis had prevalence of high impact on daily performance 55% lower than those in need of this type of prosthesis (p = 0.018). CONCLUSIONS: The prevalence of oral health impact on quality of life of homeless people was high and higher than that verified in the overall Brazilian population. The impact was associated with the need for upper prosthesis, regardless of sociodemographic characteristics of the individuals.

The aim of this study was to evaluate the resin–dentin bonds of two simplified etch‐and‐rinse adhesive after simulated cariogenic and inhibited cariogenic challenge in situ. Dental cavities (4 mm wide, 4 mm long, and 1.5 mm deep) were prepared in 60 bovine teeth with enamel margins. Restorations were bonded with either adhesive Adper Single Bond 2 (3MESPE) or Optibond Solo Plus (Kerr). Forty restorations were included in an intra‐oral palatal appliance that was used for 10 adult volunteers while the remaining 20 dental blocks were not submitted to any cariogenic challenge [NC group] and tested immediately. For the simulated cariogenic challenge [C+DA], each volunteer dropped 20% sucrose solution onto all blocks four times a day during 14 days and distilled water twice a day. In the inhibited cariogenic challenge group [C + FA], the same procedure was done, but slurry of fluoride dentifrice (1.100 ppm) was applied instead of water. The restored bovine blocks were sectioned to obtain a slice for cross‐sectional Vickers microhardness evaluation and resin–dentin bonded sticks (0.8 mm2) for resin–dentin microtensile evaluation. Data were evaluated by two‐way ANOVA and Tukey's tests (α = 0.05). Statistically lower microhardness values and degradation of the resin–dentin bonds were only found in the C + DW group for both adhesives. The in situ model seems to be a suitable short‐term methodology to investigate the degradation of the resin–dentin bonds under a more realistic condition. © 2012 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 100B: 1466–1471, 2012.