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Management of Midroot Perforation Using Biodentine
Rahul Grover,Sonali Dhawan Grover,Ruchi Singla 대한예방치과학회 2013 International Journal of Clinical Preventive Denti Vol.9 No.2
Perforations are unwanted endodontic sequlae which if not managed properly can lead to grave consequences. The ultimate goal of managing perforations rests entirely on creation of a seal which prevents contamination of the surrounding periodontal attachment apparatus. Recently a new material Biodentine is introduced to manage root perforations. Biodentine is a special micronized concrete derived from the main component of Portland cement, tricalcium silicate. With physical properties far superior to those of MTA, especially in terms of setting time and compressive strength, it exhibits the same characteristics of biocompatibility and sealing ability, after setting in an alkaline pH, with controlled (size and spatial organization) formation of calcium salts. This case report describes the management of midroot perforation with Biodentine.
Tooth Reattachment: Esthetics Preserved !!!
Rahul Grover,Ruchi Singla,Sonali Dhawan Grover 대한예방치과학회 2012 International Journal of Clinical Preventive Denti Vol.8 No.4
Coronal fractures of the anterior teeth are a common form of dental trauma that mainly affects children and adolescents. One of the options for managing coronal tooth fractures when the tooth fragment is available and there is no or minimal violation of the biological width is the reattachment of the dental fragment. Reattachment of fractured tooth fragments can provide good and long-lasting esthetics. It also restores function, provides a positive psychological response, and is a relatively simple procedure. This article reports a case in which tooth fragments were re-cemented after endodontic intervention.
Ceramic Inlay: Esthetic Replacement of Failed Amalgam Restoration
Rahul Grover,Ruchi Singla,Sonali Dhawan Grover 대한예방치과학회 2012 International Journal of Clinical Preventive Denti Vol.8 No.3
Advances in ceramics and adhesive technology have resulted in the development of a variety of tooth-colored indirect restorations. These offer an excellent alternative to direct composite restorations, especially for large restorations, and are more conservative than full-coverage restorations. However, because the clinical procedures are relatively technique sensitive, proper case selection, operator skill, and attention to detail are critical to success. This article reports a case in which failed amalgam restoration was replaced with ceramic inlay.
Revisiting the Devyani Khobragade controversy: The value of domestic labor in the global south
Grover Shalini 이화여자대학교 아시아여성학센터 2017 Asian Journal of Women's Studies(AJWS) Vol.23 No.1
On December 13, 2013 the high-profile media coverage of Devyani Khobragade, the United States-based Indian diplomat, who was allegedly underpaying her maid, brought into sharp focus unequal employer-employee relations. This ‘Voices’ commentary directs us to the interstices of global inequalities, domestic labor, and care-giving between the genders. With the globalization of domestic labor, migrant care workers around the world face commonalities. However, in a time of global recession, privileged western expatriates relocating to destinations such as India, Singapore, China, and Dubai have access to cheap yet highly skilled domestic help. The latter phenomenon that has hitherto been under-contextualized raises contrastive differences in wage rates and the way domestic labor is ‘valued’ in the global North and South. Drawing upon anthropological fieldwork on the international expatriate community in India’s Capital city, race and class entitlements are accentuated in the context of global hierarchies.
The Impact of Perforator Number on Deep Inferior Epigastric Perforator Flap Breast Reconstruction
Grover, Ritwik,Nelson, Jonas A.,Fischer, John P.,Kovach, Stephen J.,Serletti, Joseph M.,Wu, Liza C. Korean Society of Plastic and Reconstructive Surge 2014 Archives of Plastic Surgery Vol.41 No.1
Background Perforator flaps minimize abdominal site morbidity during autologous breast reconstruction. The purpose of this study was to assess whether the number of perforators harvested influences the overall deep inferior epigastric perforator (DIEP) flap survival and flap-related complications. Methods A retrospective review was performed of all DIEP flaps performed at the Hospital of the University of Pennsylvania from 2006 to 2011. The outcomes assessed included flap loss and major complications. We compared flaps by the number of total perforators (1-4) and then carried out a subgroup analysis comparing flaps with one perforator to flaps with multiple perforators. Lastly, we conducted a post-hoc analysis based on body mass index (BMI) categorization. Results Three hundred thirty-three patients underwent 395 DIEP flaps. No significant differences were noted in the flap loss rate or the overall complications across perforator groups. However, the subgroup analysis revealed significantly higher rates of fat necrosis in the case of one-perforator flaps than in the case of multiple-perforator flaps (10.2% vs. 3.1%, P=0.009). The post-hoc analysis revealed a significant increase in the flap loss rate with increasing BMI (<30=2.0%, 30-34.9=3.1%, 35-39.9=3.1%, >40=42.9%, P<0.001) in the DIEP flaps, but no increase in fat necrosis. Conclusions This study demonstrates that the number of perforators does not impact the rate of flap survival. However, the rate of fat necrosis may be significantly higher in DIEP flaps based on a single perforator. Multiple perforators should be utilized if possible to decrease the risk of fat necrosis.
EFFICIENT ESTIMATION OF POPULATION MEAN IN STRATIFIED SAMPLING USING REGRESSION TYPE ESTIMATOR
Grover Lovleen Kumar The Korean Statistical Society 2006 Journal of the Korean Statistical Society Vol.35 No.4
Here an efficient regression type estimator for a stratified population mean is proposed under the two-phase sampling scheme. While constructing the proposed estimator, it is assumed that the first auxiliary variable x is directly and highly correlated with the study variable y, and the second auxiliary variable z is directly and highly correlated with the first auxiliary variable x. However the variable z is not directly correlated with the variable y, but they are just correlated with each other only due to their direct and high correlation with the variable x. The proposed regression type estimator is found to be always more efficient than the existing estimators defined under the same situation.
GROVER, Shalini 이화여자대학교 아시아여성학센터 2011 Asian Journal of Women's Studies(AJWS) Vol.17 No.1
Low-caste women and men in New Delhi frequently remarry in their lifetimes. While one of the major stories about social change in modern India is that divorce is growing by leaps and bounds, for the urban poor in large cities remarriage remains foremost a practical necessity. For the lowest castes in India, the virtual absence of high- caste chastity norms pertaining to their conjugal lives has hitherto been a putative route for explaining why certain social groups are in a position to form liaisons and remarry so easily. This article seeks to foreground gender, structural constraints, and everyday deprivation as factors in understanding why remarriage is a widespread practice amongst the low-caste poor in a metropolitan setting. The ethnographic focus is on poor women’s marital trajectories and on how they robustly negotiate divorce and remarriage with male partners, counsellors, the state, and NGOs in their quotidian lives.
A Survey of RFID Deployment and Security Issues
Grover, Amit,Berghel, Hal Korea Information Processing Society 2011 Journal of information processing systems Vol.7 No.4
This paper describes different aspects of a typical RFID implementation. Section 1 provides a brief overview of the concept of Automatic Identification and compares the use of different technologies while Section 2 describes the basic components of a typical RFID system. Section 3 and Section 4 deal with the detailed specifications of RFID transponders and RFID interrogators respectively. Section 5 highlights different RFID standards and protocols and Section 6 enumerates the wide variety of applications where RFID systems are known to have made a positive improvement. Section 7 deals with privacy issues concerning the use of RFIDs and Section 8 describes common RFID system vulnerabilities. Section 9 covers a variety of RFID security issues, followed by a detailed listing of countermeasures and precautions in Section 10.