The appearance of musculoskeletal symptoms among dental professionals was quite common. It suggested that ergonomics should be covered in the educational system to reduce risks to dental practitioners.
Cross infection and self-protection, these two words are like a lurid to the health care professionals. A balance has to be maintained among those two words if not, it's after affects are unpredictable. It is believed that even after following the code of practice, some elements such as the aerosols that are evolved during the use of high speed rotary instruments such as airotor and scaler are difficult to handle. Aerosols containing microbes from oral cavity of the patient are a risky source of infection. The best way to fight against these aerosols is to keep a distance from them. But it is not known how far these airborne microorganisms spread under various clinical environments. This article emphasizes the safe distance that has to be maintained around each dental chair to prevent cross contamination.
Background:Regular usage of denture cleansers is recommended in complete denture wearers for effective plaque control, and these cleansers alter the physical properties of acrylic resin over a period of time. Thus, an in vitro study was carried out to assess the effect of denture cleansers on the color stability of heat-cure denture base resin.Aim:The aim of the present study was to evaluate the effect of commercially available fast-acting denture cleansers on the color stability of heat-cure denture base resin at different time intervals.Materials and Methods:Thirty-six heat-cure acrylic resin (Ivoclar Triplex Hot-V) specimens are randomly allocated into four groups – Group A (distilled water as control); Group B (polident – 3 min); Group C (fixodent scope plus); and Group D (stain away plus) comprising of nine samples each. After recording the baseline values, the specimens were immersed in their respective cleansing solutions for a prescribed time interval. This procedure was repeated daily, and the color change (ΔE) was evaluated after 90 and 180 days interval using a colorimeter in a standard “Commission International de l'Eclairage” color system.Statistical Analysis Used:Paired t-test and Dunnett's T3 test.Results:All the groups exhibited a variable color change (ΔE) for an immersion period of 90 days. However, significant color differences (P = 0.001) were noticed among the test groups after 180 days.Conclusion:The color change of denture base resin was greater for Group D followed by Groups B, C, and A respectively after 180 days of immersion. The ΔE values of all test groups increased with time.
Al2O3 fillers have potential to provide increased thermal diffusivity. Increasing the heat transfer characteristics of the acrylic resin base material could lead to more patient satisfaction.
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