Indian Dental Association (IDA) represents dental professionals in India. Established in 1946, The association currently has more than 75,000 members, 450 local branches, 28 state branches and 8 Union Territory branches and 1 Defence branch across India. The professional association is committed to public oral health, ethics, science and advancement of dental professionals through its initiatives in advocacy, education, research and development of standards.
Indirect composite restorations made of highly loaded light and heat polymerized material were applied to the mandibular premolars of a 23-year-old female patient. Enamel cavity margins were etched with phosphoric acid. Dentin surfaces to be bonded were treated with ferric chloride-citric acid solution, and coated with tri-n-butylborane (TBB)-initiated 4-META resin. Inner surfaces of the inlays were treated with phosphoric acid. The restorations were then seated with dual-polymerized composite luting agents. Although cavosurface discoloration, wear, loss of marginal integrity, and change in surface texture were detected, both restorations are still functioning after 33 years. Restorations made with such system is applicable for premolar class II cavities and have a favorable prognosis.
Dental rehabilitation with osseointegrated implants in reconstructed mandibles is a common procedure, lot of treatment and prosthetic options have been documented in literature. Full and complete rehabilitation of masticatory function may only be achieved by a final prosthetic restoration, leading to improvement of general well being. We herein report a case of full arch dental rehabilitation of vascularised fibula reconstructed mandible using 5 implants, multiunit abutment and an acrylic titanium hybrid screw retained denture. The hybrid denture helps in compensating the vertical and horizontal bone and soft tissue discrepancy and also allows easy retrievability for maintenance or repair and contributes to healthy peri-implant tissue.
Purpose: A radiopaque self-polymerizing adhesive resin was prepared by incorporating bismuth subcarbonate-poly(methyl methacrylate) prepolymerized composite (BS-PMMA) into an acrylic resin. The purpose of this study was to evaluate the radiopacity of prepared resins.Methods: As a radiopaque component, a composite containing 50% bismuth subcarbonate was used, and other metal compounds were adopted as controls. They were added to finely pulverized PMMA. Specimens were prepared from the powders, methyl methacrylate (MMA) monomer with 5% 4-methacryloyloxyethyl trimellitate anhydride (4-META) and tri-n-butylborane derivative (TBB) by mixing. Radiographs of the specimens were taken together with tooth slices and aluminum step wedges. The density of the specimens was determined with a densitometer and was expressed in terms of the equivalent thickness of aluminum per 2.0 mm unit thickness of specimen. Results: The radiopacity value of BS-PMMA-based specimen was 3.7 mm Al / 2.0 mm specimen, which was nearly the same value as enamel (3.7) and exceeded the values of dentin (2.0). Conclusion: BS-PMMA composite and bismuth compounds are useful as a radiopaque additive for the acrylic resin.
Introduction: The menstrual cycle involves a sequence of structural, functional, and hormonal changes in the reproductive system. This is linked and controlled by cyclical fluctuations in the levels of FSH, LH, estrogen, and progesterone. Because of these cyclical fluctuations, there might also be associated cyclical changes of magnesium and systemic arterial blood pressures during the menstrual cycle. Purpose: To assess the changes in serum magnesium level and systemic arterial blood pressures during the menstrual cycle in young reproductive women. Methodology: the sample population is 40 apparently healthy young reproductive-aged 18- 25years female students from the University of Medicine, Magway participated in this study. Systemic arterial blood pressures were measured by indirect method. The serum magnesium level was measured by spectrophotometry. These measurements were done in the early follicular phase (EF), the peri-ovulatory phase (PO), and the mid-luteal phase (ML) of the menstrual cycle. The serum magnesium levels were significantly (p <0.001) lower, and the systolic blood pressures were significantly higher (p <0.05) in the PO than the EF and the ML. In the EF, there was a significant negative correlation between serum magnesium level and diastolic blood pressure (r= -0.374, p <0.05) and mean arterial pressure (r = -0.354, p < 0.05) but no significant correlation with systolic blood pressure. In the PO, there was no significant correlation between serum magnesium level and systemic arterial blood pressures. In the ML, there was significant negative correlation between serum magnesium level and systolic blood pressure (r = -0.651, p <0.001), diastolic blood pressure (r = -0.607, p <0.001), and mean arterial pressure (r = -0.661, p <0.001). Conclusion: The study concludes that serum magnesium level has a negative effect on blood pressure changes and the blood pressure-lowering effect of magnesium. These changes are related to the fluctuation of estrogen levels during the menstrual cycle.
