Effect of two chromatogens on the color stability of three provisional materials before and after thermocycling –an in vitro study

Abstract

The Journal of Indian Prosthodontic Society | Volume 20 | Supplement 1 | December 2020 S23 Conclusion: It was observed that flexural strength of denture base resin incorporated with 5 wt% TiO2 nanoparticles was having highest flexural strength among all. DOI: 10.4103/0972-4052.306374 Effect of two chromatogens on the color stability of three provisional materials before and after thermocycling –an in vitro study Dr. Shrirao Nupur, Dr. Neelam Pande, Dr. Saee Deshpande, Dr. Usha Radke Introduction: An acceptable cosmetic effect in any dental restoration has been regarded as a very important aspect of quality dentistry. In long term cases of full mouth rehabilitation with interim prosthesis or even cases of provisionalization in the anterior region of the mouth, staining and discoloration of restorations is the main esthetic concern of the patients which brings them back to the dentist’s time and again , adding to the number of visits and costs. The Indian food consists of various chromatogenic substances such as tea, coffee, turmeric/ red chilli powder, spices, oil etc. which are consumed on a daily basis and can adversely affect the color of the provisional restorative material. Thermocycling can be done to simulate this clinical situation in the laboratory. Considering these facts, the present study was palnned. Aim:To evaluate and compare the effect of two chomatogens on colour stability of three provisional materials before and after thermocycling. Materials and methods:Three commercially available provisional materials were chosen – DPI heat-cure , protempTM4 chemical-cure and Luxatemp solar dual cure. Flat circular metallic dies were prepared of 22 mm diameter and 2mm thickness. Total 150 samples were prepared from the materials using these dies. The samples were finished and polished using standardized method. They were divided into 5 groups. Two groups from each material were subjected to a standardized thermocycling regimen. The samples were immersed in two staining solutioncoffee solution and sambhar solution for 30 days. Then artificial saliva was used for the control group. The solutions were prepared using a standardized method and were changed everyday. The color measurements were done twiceonce before thermocycling and staining and another after, in CIE L*a*b* color system using a reflectance spectrophotometer. Results:-Statistical analysis was done in SPSS version 20.0 using oneway ANOVA and Tukey’s post-hoc test .p value <0.05 was considered statically significant. Conclusions:Luxatemp Solar showed least color stability, followed by ProtempTM4 whereas DPI showed maximum color stability. Sambhar showed higher staining ability .The color changes seen with coffee and control were not clinically perceptible. Thermocycled samples showed more color change than non thermocycled samples. DOI: 10.4103/0972-4052.306375 Level of Public Awareness about Dental Implants: A Cross sectional Study Dr. Rajlakshmi Banerjee VSPM Dental College and Research Centre, Nagpur Introduction: Implant dentistry has recently become a highly viable treatment option for replacement of missing teeth. The number of implants being placed worldwide has increased exponentially in the past decades. Implant dentistry has opened new options in wide variety of cases. However in the certain parts of the country acceptance of implants as a treatment modality is still low due to lack of awareness or high treatment costs as compared to other available treatment options. The aim of the study was to determine the level of awareness of implants as a dental treatment modality. The objective of the study was to evaluate whether there is further need to improve awareness in the general population regarding implants. Material and Method: A validated printed questionnaire was used to conduct a survey to evaluate the awareness about implants in 200 dental patients visiting the department of Prosthodontics and private dental clinics in and around Nagpur. Information was gathered regarding knowledge and attitude of patients regarding Implant treatment. Results: Out of the 200 patients, approximately 30% mostly in the age group of 2050 years (35.5%) knew about dental implants as a treatment modality, with no statistical significance difference between males and females. It was also found that they had received the information regarding implants from their dentists or from social media. All the patients who had a negative attitude towards dental implants were due to the high cost being the first reason (43%) and need for surgical intervention (38%) being the second reason. Conclusion: The survey concluded that further awareness should be provided to patients regarding dental implants. There should be efforts taken to reduce the treatment costs by initiating implant manufacturing or use of cost-effective technologies. DOI: 10.4103/0972-4052.306376