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   Table of Contents - Current issue
September-December 2016
Volume 4 | Issue 3
Page Nos. 45-63

Online since Wednesday, May 31, 2017

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Applications of silver nanoparticles in prosthodontics: An overview p. 45
Rajashree Dhananjay Jadhav, Shreenivas V Bhide, B. L. V. Prasad, Jayesh Shimpi
Silver (Ag) has been in use in medicine since time immemorial because of its antimicrobial properties. However, due to the emergence of antibiotics, the use of Ag has been declined. Several pathogenic bacteria have developed resistance against various antibiotics. This has led to the reemergence of Ag. Recently, nanoscience and nanotechnology are gaining tremendous popularity. The small size of nanoparticles provides larger surface area and hence increases the effectiveness of nanoparticles. Ag nanoparticles (AgNPs) are used in medical and dental applications ranging from Ag-based wound dressings, Ag-coated medical devices such as catheters, bone cements, in gels, lotions, cosmetics, in dental restorative materials, endodontic cements, dental implants' caries inhibitory agents, and in prosthesis. This paper reviews the use of AgNPs as an antimicrobial in oral prosthesis.
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Comparative evaluation of hardness of four provisional restorative materials: An in vitro study p. 51
Muralidhar Reddy Pereddy, S Janani, Brajesh Gupta, Venu Madhav Gajula
Purpose: The present in vitro study was conducted to evaluate and compare the hardness of four commercially available provisional restorative materials. Materials and Methods: The groups in the study were Protemp 4 group, Integrity group, Systemp C and B group, and Structure 2SC group ten specimens of dimensions 64 mm × 3.5 mm × 12.3 mm × 65 mm × 13.5 mm of each material was made. Moreover, a total of forty specimens were used in the study and were tested for micro hardness and the values obtained were evaluated. One-way analysis of variance was applied to the data, and post hoc test was carried out for intercomparison between groups. Results: The findings showed that mean hardness value of Protemp 4 which had the highest value of 65.990 Vickers hardness number (VHN) followed by integrity 60.300 VHN followed by 57.210 VHN in Structure 2SC and least of 56.520 VHN in System C and B group and it was found to be statistically significant. The post hoc test revealed there was evident between Voco (Structure 2SC) and Systemp C and B materials; there was no statistical difference in mean hardness of the material in comparison with Protemp 4 and Integrity. Conclusion: Protemp 4 showed the highest hardness followed by integrity, Structure 2SC and Systemp C and B.
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Prosthetic rehabilitation of a patient with orbital defect using silicone prosthesis p. 56
Ravindra S Pawar, Pravin E Raipure, Rahul S Kulkarni
Loss of eye, along with contents of the orbit may result from tumor ablative surgery, trauma, or burns, and may negatively affect social and psychological well.being of the patient. Conventional or implant retained orbital prostheses may be indicated, with or without plastic surgical intervention, to restore the appearance of the patient. Orbital prostheses fabricated from silicone, and retained by mechanical means such as spectacles, or adhesives, present an economically viable treatment option for patients who cannot afford implant.retained prostheses. This case report presents a simplified method of fabricating the silicone orbital prosthesis in a young patient with a history of orbital exenteration due to trauma. A. positive reaction was observed in patient's familiar and working surroundings postinsertion of the prosthesis, and the patient could socialize easily after wearing the prosthesis.
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A simple technique for making the final ocular impression p. 60
Sunil Kumar Mishra, Ramesh Chowdhary, Srinivasa B Rao
Different impression techniques have been given in literature for the fabrication of ocular prosthesis. An accurate impression is required for the perfect fitting of the prosthesis. This article describes a modified impression with the help of dispensing gun with simple, accurate and time saving technique.
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Osseoperception: Can implant-mediated sensibility becomes a reality p. 62
Sunil Kumar Mishra, Ramesh Chowdhary
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