Medicated denture adhesives: microbial contamination, efficiency and intraoral cytology in diabetic patients

The aim of this study, on medicated denture adhesives, was to assess the efficacy of antimicrobial agents incorporated into the adhesives. Three different forms of denture adhesives were selected to assess the efficiency of incorporation of antibacterial and antifungal agents, and accordingly, the patients were divided into 3 groups, 6 patients each. Group 1, patients received non-medicated and medicated Super Corega powder denture adhesive on the lower denture, and used each type for one month. Group 2, patients received non-medicated and medicated Fixodent Gel denture adhesive on the lower denture, and used each type for one month. Group 3, patients received non-medicated and medicated New Fitydent denture adhesive on the lower denture, and used each type for one month. Results were given

comparative study on the shear bond strength of some resinous dentin adhesives

The shear bond strength between composite and dentine after using adhesive of different modes of actions was evaluated in this study. Freshly extracted sound human molars were selected, embedded in steel rings using improved dental stone. The buccal surfaces of 180 specimen were cut to expose dentine using a milling machine. The denuded dentine surface were either untreated or treated by EDTA or ferric oxalate. Two different adhesive systems bonding either to the organic or inorganic portions of dentine were used. A combination of both the organic and inorganic dentine adhesive was also used. A light cured composite resin was placed on the treated dentine surface by a teflon ring. The specimen were divided into nine equal groups and tested for shear bond strength using a universal testing machine. The results revealed that the highest mean shear bond strength scores were obtained with the use of the combination of dentine adhesive followed by the adhesive bonding to the organic component of dentine. Furthermore, the use of EDTA for the surface treatment of dentine was found to greatly improve the shear bond strength values of the dentine bonding agents to dentine surface