3D printing is a modern technology with various applications in prosthetic dentistry that has dev... more 3D printing is a modern technology with various applications in prosthetic dentistry that has developed rapidly during last years as it saves time, manpower and guarantees perfect marginal fit of the fabricated constructions. An advantage of the additive technologiesconcerning prosthetic dentistry, is the possibility to print objects from various materials: polymers, composites, metals and alloys with a dense structure and redetermined surface roughness .They allow the manufacturing of complicated geometrical shapes without the need of special adjusting of the CAM unit as well as the use of different materials in different parts of the same object after controlled conduction.
International Journal of Prosthodontics and Restorative Dentistry, 2020
Aim: This study aims to evaluate and compare the effect of using three commercially available den... more Aim: This study aims to evaluate and compare the effect of using three commercially available denture cleansers on surface color, surface roughness, and flexural strength of heat-cured resin. Materials and methods: A total of 80 rectangular heat-cured acrylic specimens were fabricated and all were immersed in denture cleansers over a period of 6 days in which 30 immersions were performed. Then the physical properties of the heat-cured resin were tested using portable colorimeter, universal testing machine, and surface analyzer. The paired t test was done to compare the before and after immersion values for color, surface roughness, and flexural strength in denture cleansers. The post hoc test was performed to make multiple comparison among different groups. Results: All heat-cured resin bases presented with changes in color, surface roughness, and flexural strength to some extent when immersed in all the three denture cleansers. The values of change in color, surface roughness, and flexural strength were higher when immersed in Clinsodent as compared to all other groups. Conclusion: The changes observed in color and surface roughness of all resins samples were within the clinically accepted range while significant decrease in flexural strength was seen on immersion in all three denture cleansers; least change was observed with the Secure denture cleanser.
Identification of a person through forensic science is an art of giving the corpse a name. Dentur... more Identification of a person through forensic science is an art of giving the corpse a name. Denture markers play an important role in forensic odontology and also in identifying a deceased person. A number of methods are used. Out of the differently available denture markers, the barcoding system is a way of collecting data from the mobile. It can be easily incorporated during the fabrication process of the denture and thus could be helpful in identification. This article reviews the importance of bar-coding and how easily it can be used in the routine procedure.
The aim of the present study was to evaluate and to compare the accuracy of implant casts obtaine... more The aim of the present study was to evaluate and to compare the accuracy of implant casts obtained by open tray pick-up impression technique using 2 types of custom-made trays and a specialized aluminum stock impression tray. A heat-cure acrylic resin master model was fabricated. Two implants were placed parallel to each other. Ten impressions were made from each group. Polyvinylsiloxane impression material with single step putty wash technique was used for making all the impressions. The resultant casts obtained were compared to the master models with respect to the distances measured between the reference points using a stereomicroscope. The data obtained was statistically analyzed using one-way ANOVA, Tukey's procedures, and -test. Mean value obtained was 2.012967 cm (±0.007060) for corimplant stock tray, 2.012627 cm (±0.007945) for autopolymerizing acrylic resin tray, 2.010279 cm (±0.006832) for light-cure hybrid composite tray. value was calculated to be >0.05; hence, th...
International Journal of Prosthodontics & Restorative Dentistry, 2017
Velopharyngeal (VP) dysfunction takes place when palatopharyngeal valve is unable to perform its ... more Velopharyngeal (VP) dysfunction takes place when palatopharyngeal valve is unable to perform its own closing due to a lack of tissue or lack of proper movement. Insufficiency induces nasal regurgitation of liquids, hypernasal speech, nasal escape, disarticulations, and impaired speech intelligibility. Treatment options include surgical correction, prosthetic rehabilitation, and speech therapy, though optimal results often require a multidisciplinary approach. This case report describes a novel approach for rehabilitation of a patient with soft palate defect (VP incompetence). How to cite this article Agarwal P, Dhawan P, Madhukar P, Tandan P. Prosthetic Rehabilitation of Velopharyngeal Incompetence. Int J Prosthodont Restor Dent 2017;7(2):71-76.
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Papers by Pankaj Dhawan