Purpose Oral health status seems to play an important role in the quality of life of the elderly, the aim of this study was to verify oral hygiene habits, oral health status and treatment needs of a sample of elderly Brazilians in the city of São Paulo. Materials and methods A convenience sample of 167 individuals underwent interviews and clinical examinations. Results A total of 107 patients (64.1%) reported brushing their teeth 3 or more times per day, 42.5% floss their teeth, and 24.0% uses mouthwash. The average time since the patients’ last visit to a dentist was 2.2 years (±4.6). Only 24.6% of the teeth were periodontally healthy, and the most prevalent pathological condition was gingival recession (46.1%). Eighty-two percent use some type of dental prosthesis. A total of 35.3% of the sample required periodontal treatment, 32.9% needed direct restorations, 39.5% removable partial dentures and 23.4% complete dentures. Positive associations were found between the current condition of oral health and flossing (p = 0.004) and between the current condition and the use of interdental brushing (p = 0.009), and an inverse association with the time elapsed since the last dental appointment (p = 0.016). Conclusion The oral health status in this sample was better than observed in previous Brazilian surveys, but dental treatment needs remain high, mainly regarding prosthetic needs. How to cite this article dos Santos MBF, Montenegro FLB, Arcas SP, Hiratsuka M, Consani RLX, Marchini L. Oral Health Status, Hygiene Habits and Treatment Needs among Elderly Brazilians: A Cross-sectional Study. World J Dent 2012;3(1): 22-25.
The aim of this study is to investigate the effect of the toothbrushing, chemical disinfection and thermocycling treatments on the surface hardness of acrylic resins used for denture bases. The Classico (conventional), Onda Cryl (microwaved) and QC-20 (boiled) thermoactivated acrylic resins were used to prepare specimens. Prior to and after cleaning procedures, the specimens were submitted to a hardness test in an indenter (HMV-2000 Shimadzu), employing a load of 50 gf for 10 s. Three-way ANOVA and Tukey's test (α=0.05) were used to analyze the data. Prior to thermocycling, statistical differences were found among treatments for Onda Cryl, with greater hardness values observed for Efferdent and hypochlorite; lower hardness value was obtained after toothbrushing, and intermediate value was found for the control. Differences were found among resins for the control treatment, with higher value for QC-20 resin, lower value for the Classico, and intermediate value for the Onda Cryl. Following thermocycling, differences were observed among treatments for Onda Cryl, with control specimens presenting higher values, lower value for toothbrushing and intermediate values for Efferdent and hypochlorite. Differences were also found for QC-20, with Efferdent and hypochlorite presenting higher values, lower value for control and intermediate value for toothbrushing. Differences were found among resins for the control treatment, with higher value for Onda Cryl resin, lower value for the QC-20, and intermediate value for the Classico. The QC-20 resin showed higher value for control prior to thermocycling and Onda Cryl after thermocycling. Different effects on the surface hardness of acrylic resins used for denture bases were observed when associating thermocycling with toothbrushing or chemical disinfections.
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