Chhabra N.,Krishna Dental College
Minerva stomatologica | Year: 2012
Dental anxiety and fear pose a considerable challenge for the practice of clinical dentistry as these are problematic entities in the management of child patients and present a potential barrier to the utilization of oral health care services. The aim of this study was to estimate the prevalence of dental anxiety and fear among the 5-10 years aged Indian child population. A total of 523 children aged 5-10 years and their parents, visiting Krishna Dental College, Ghaziabad, India were finally recruited in this study. Dental Fear/anxiety distribution in the children was studied using the Indian parent's version of the Dental Subscale of the Children's Fear Survey Schedule (CFSS-DS). Total fear scores were calculated separately for boys and girls and at different age levels. The collected data was statistically analyzed using a SPSS statistical program. The estimated prevalence of dental anxiety among 5 to 10 year old children in the study population was 6.3%. The overall median CFSS-DS score was 23 and the overall mean value of CFSS-DS score was 24. The prevalence of dental anxiety in children aged 5 years was 7.9%, 7.1% for 6 years old, 6.6% in 7 years old, 6.5% in 8 years old, 6.3% for 9 year old children and 5.8% in children aged 10 years. No statistically significant gender differences were found in the dental anxiety scores. The most fear provoking situations were the sight of injections, the drilling procedures by the dentist, touch of a stranger and noise of drilling by the dentist. The results of this study indicate the need for preventive health education and intervention programmes in India to prevent and reduce dental anxiety/fear and to promote children's oral health.
Juneja M.,Krishna Dental College
Microscopy Research and Technique | Year: 2012
Background: The early detection of neoplasia is the prime aim of a diagnostician. Altered chromatin distribution is the earliest microscopic change observed in malignant transformation making it a valuable morphometric parameter. This study was aimed to assess and correlate the progressive changes in chromatin texture from normal to varying grades of premalignancies to malignancy of the oral cavity. Methods: Thirty-four archival tissue specimens categorized as normal buccal mucosa (5), low-grade epithelial dysplasia (11), high-grade epithelial dysplasia (7), and squamous cell carcinoma (11) were stained with Feulgen reaction. Pixel optical densitometry histograms were obtained from analysis of an average of 300 cells/case using ImageJ software. Nine histogram curve characteristics (including area under the curve, area integer percentage, center, centroid) were then analyzed statistically for differences between the four groups. Results: Area integer percentage (P = 0.002), center (P = 0.038), and centroid (P = 0.021) were statistically significant within the four groups The parameters showed a dip in their value from normal to low-grade dysplasia but showed a steady increase in high-grade dysplasia and carcinoma. Conclusion: The optical density characteristics had the ability to differentiate the progression of neoplastic changes by extracting information of the chromatin distribution not quantifiable by routine microscopy. The early clumping of chromatin in the periphery in low-grade dysplasia followed by progressively increasing chromatin aggregates in high-grade dysplasia and carcinoma correlated well with the shift observed in the histogram center and centroid. The novel pixel optical densitometry technique efficiently predicted malignant transformation. © 2012 Wiley Periodicals, Inc.
Garg H.,Sharda University |
Bedi G.,Sharda University |
Garg A.,Krishna Dental College
Journal of Clinical and Diagnostic Research | Year: 2012
The aim of the present review was to elaborate on the surface modifications of biomaterials which are used in implant dentistry. The ongoing studies on the clinical and laboratory phases and on the biomaterial sciences have largely aimed at invoking a stronger bone response and an earlier and longer functional loading. Surgical grafting procedures to improve the bone bed are used to create an ideal environment for the implant functioning. The implant selection which is based on the available bone, is also an important determiner of the long term clinical success. The interfacial zone between the implant and the bone is composed of a relatively thin layer (<100um) which consists of heterogenous metallic oxide, proteins and connective tissue. The integrity of the implant - tissue interface is dependent on the material and on mechanical, chemical, surface, biological and local environmental factors, all of which change as a function of time in vivo. Because a stable interface must be developed before the loading, it is desirable that the tissue apposition may be accelerated to the implant surface. The material developments that have been implemented in the clinical practice include the use of surface roughened implants and bioactive ceramic coatings. Osseointegration occurs around the screw threaded implants through the tissue ongrowth or through a direct apposition between the tissue and the implant surface. The alternative methods of the implant-tissue attachments, based on the tissue ingrowth into roughened or three dimensional surface layers, yield a higher bone metal shear strength and decreased implant loosening. A positive effect of various surface modifications which are illustrated in this review, has been observed and suggested by many groups.
Pathak S.,Sri Ram Murti Medical College |
Vashisth S.,Kalka Dental College |
Mishra S.,District Hospital Moradabad |
Singh S.P.,Krishna Dental College |
Sharma S.,Sri Sai Dental Clinic
Journal of Clinical and Diagnostic Research | Year: 2014
Background: Extraction of mandibular third molars are somewhat a matter of interest because of its malpositioning, curved roots, proximity to vital structures due to this the procedure is often associated with post operative complications like pain and trismus. The extraction of third molar was classified in four grads according to the difficulty of the procedure. Aims: The purpose of this paper is to find any significant relationship between grading of extraction and post operative complications like pain and trismus. Materials and Methods: A total number of 180 patients need to go for extraction of third molar was included in the study. The variables taken into account were grading of extraction, pain six hour post operatively trismus one day after extraction, and trismus five day after extraction. The four grades of extractions as described by Parent in 1974 were statistically analyzed by computing pearson product moment correlation coefficient with post operative pain and trismus first and fifth day to find any co relation between them. Results: The grading of extraction was found significantly correlated with post operative pain, trismus one day after and fifth day of surgery.
Sabharwal R.,Bhojia Dental College and Hospital |
Mahendra A.,Chandra Dental College |
Moon N.J.,RKDF Dental College |
Gupta P.,Kalka Dental College |
Jain A.,Krishna Dental College
South Asian Journal of Cancer | Year: 2014
The concept of field cancerization has been ever changing since its first description by Slaughter et al in 1953. Field cancerization explains the mechanisms by which second primary tumors (SPTs) develop. SPTs are the tumors, which develop in the oral cavity in succession to the primary malignant tumors, which might vary in duration ranging from few months to years. Conceivably, a population of daughter cells with early genetic changes (without histopathology) remains in the organ, demonstrating the concept of field cancerization. This review explains the concept of field cancerization and various field theories along with molecular basis of field formation. © 2014 South Asian Journal of Cancer. All Rights Reserved.