Surface roughness is the primary factor that dictates plaque adhesion. An organic matrix, the dental plaque has a highly organized predominantly filamentous structure. It tenaciously adheres to the surface of teeth, implants, and dental prostheses. Bacterial plaque is comprised of extracellular bacterial products and salivary glycoproteins. They feed on sugars and other molecules present in food and drink and are difficult to remove without regular brushing. Image Credit: FS Stock/ Bacterial Plaqueīacteria are an ever-present part of the mouth’s environment. Study: Titanium versus zirconia complete-arch implant-supported fixed prostheses: A comparison of plaque accumulation. To inform the development of improved dental prostheses, a study published in The Journal of Prosthetic Dentistry has compared plaque accumulation on titanium and zirconia-based fixed dental prostheses. It grows and proliferates on the surface of teeth and on dental implants.
INTAGLIO DENTAL FULL
Users should refer to the original published version of the material for the full abstract.By Reginald Davey Reviewed by Skyla Bailyīacterial plaque is an ever-present issue for dental hygiene. No warranty is given about the accuracy of the copy. However, users may print, download, or email articles for individual use. Copyright of Journal of Clinical & Diagnostic Research is the property of JCDR Research & Publications Private Limited and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission.Combination of sandblasting and metal primer can be considered to improve the bond strength of luting agents. Conclusion: The study reasonably concluded that the type of surface treatment may have a significant effect on retentive strength of crowns. Significant improvement was observed in tensile bond strength after surface treatment with both the cements (resin modified glass ionomer and resin cement) with p<0.001. Results: Among cements tested in the study, resin cement with surface treatment (7.61☐.78) Mpa had the highest tensile bond strength, while glass ionomer had the lowest tensile bond strength (3.78☐.65) Mpa.
INTAGLIO DENTAL SOFTWARE
SPSS 17.0 statistical software was used to analyse the data. ANOVA test followed by Tukey's Honest Significant Difference (HSD) post-hoc test were employed in the analysis of data. After surface treatment and cementation procedures, samples were stored in storing media and then subjected to tensile loading with universal testing machine (TU-400 Batch no-99/01, Fine Spavy, INDIA) to separate crowns from the tooth. Based on type of luting cement, the teeth were divided into five groups: glass ionomer cement (10) resin modified glass ionomer cement (10) resin-modified glass ionomer cement with surface treatment (10) resin cement (10) and resin cement with surface treatment (10). Occluso-cervical dimension of the teeth was standardised at 4 mm for all the samples. Teeth were mounted in an index using autopolymerising acrylic resin crown preparations were made with a high-speed hand piece stabilised by using a k-9 crown installation machine and 6° taper was achieved for all preparations. Materials and Methods: In this in vitro experimental study a total of 50 extracted human sound premolar teeth were prepared to receive cast metal crowns made of cobalt-chromium alloy. Aim: To compare and evaluate the effect of surface treatments of intaglio surface on retention of complete cast crowns cemented with different luting cements. Hence the purpose of this study is to evaluate the effect of surface treatment (sand blasting with alumina oxide particles and metal primer) on retention of complete cast crowns luted with different cements. The effect of metal primers on noble alloys has been studied several times and proved to be efficacious but there is insubstantial information about their effect on base metal alloys.
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