bluuebunny/crossref_metadata_2025_split huggingface dataset:
An Investigation of Blood Hemogram and Estimation of Serum Iron and Protein Levels in Aggressive Periodontitis Patients: A Clinic Biochemical Study
Authors: Reddy R Vamshidhar , Arora Dimple , Rao P Krishna , Mapare Sagar Arjun , Nag Venkat Ratna , Gowtham K 
Published: February 2014

ABSTRACT

Aim
The aim of this study is to investigate the blood hemogram and estimation of serum iron and proteins level in aggressive periodontitis patients.

Materials and methods
A total of 85 patients were selected and divided into two groups, 45 patients are with aggressive periodontitis and 40 patients are healthy. Periodontal parameters such as gingival inflammation oral hygiene index, Russell's periodontal index and radiograph were taken. Total 10 ml blood was collected and sent for estimation of blood hemogram protein estimation and serum electrophoresis.

Results
There was statistical significant difference observed in relation to gingival inflammation oral hygiene hemoglobin and total iron binding capacity level between both the groups.

Conclusion
It has been concluded that periodontitis does not induce anemia like state, as the hematological and biochemical parameters were almost equally affected in periodontally healthy and periodontally diseased individuals, but some parameters showed statistical significant difference between the both groups.

Clinical significance
In the present study, the clinical periodontal parameters, red blood cell parameters and serum iron and ferritin levels were compared among control and test groups. It was found that the values of gingival inflammation, oral hygiene and periodontal index, hemoglobulin level and total iron binding protein were statistically significant between the groups. However, the values of erythrocyte count, white blood cell count, serum iron and serum proteins, serum electrophoresis did not show any significant correlation.

How to cite this article
Rao PK, Reddy RV, Mapare SA, Nag VR, Gowtham K, Arora D. An Investigation of Blood Hemogram and Estimation of Serum Iron and Protein Levels in Aggressive Periodontitis Patients: A Clinic Biochemical Study. J Contemp Dent Pract 2013;14(5):852-857.
Antioxidant Agents and Their Effects on Shear Bond Strength of Bleached Enamel
Authors: Moosavi Horieh , Maleknejad Fatemeh , Hoseinipour Zahra , Hatami Lila , Zeynali Mahsa 
Published: February 2014

ABSTRACT

Aim
The goal of this study was to find a method to eliminate bond strength reduction after vital bleaching.

Materials and methods
Sixty flat surfaces of enamel central human incisors were prepared by diamond disks. In the first group, the samples immediately bonded to the tooth after bleaching. For the second group, the bleached samples were treated by sodium ascorbate for 1 hours. In the third and fourth groups the treatment was down using a new antioxidant agent for 1 hour and 15 minutes respectively. For the fifth group no bleaching was done. Cylindrical composite resin (Z 100) with a Single Bond adhesive system was bonded to the enamel with a special metal mold. After thermocycling, the samples were loaded at a crosshead speed of 0.5 mm/min. The mode of failures was inspected by the Dino Lite microscope and the microstructure of the debonding surfaces was observed by SEM. Considering normal data, statistical analysis was conducted by ANOVA and Tukey tests (p = 0.05).

Results
The fourth group had maximum (21.82), while the first group had the least (9.0971) shear bond strength. The ANOVA test showed a significant difference among the five groups (p = 0.0002). There was not any significant statistical difference between the three types of debonding (p = 0.165).

Conclusion
The usage of sodium ascorbate or sodium ascorbate with detergent after vital bleaching are effective methods for reducing the damaging effects of bleaching agents on the shear bond strength of composite resin restoration to enamel.

Clinical significance
Using antioxidants is necessary post bleaching and before resin bonding.

How to cite this article
Moosavi H, Maleknejad F, Hoseinipour Z, Hatami L, Zeynali M. Antioxidant Agents and Their Effects on Shear Bond Strength of Bleached Enamel. J Contemp Dent Pract 2013;14(5):871-875.
Long-Term Surface Hardness and Monomer Conversion of a Nanofilled and a Microhybrid Composite Resin
Authors: Tonetto Mateus Rodrigues , Bandéca Matheus Coelho , Saad José Roberto Cury , de Campos Edson Alves , Jassé Fernanda Ferreira , Borges Carlos Henrique Braga , de Souza Rastelli Alessandra Nara , Bagnato Vanderlei Salvador , Santos Reidson Stanley Soares dos 
Published: February 2014

ABSTRACTObjectiveThis study aims to evaluate the degree of conversion (DC) and hydrolytic degradation through the Vickers hardness test (HV) of a nanofilled (FiltekTM Z-250, 3M) and a microhybrid (FiltekTMSupreme-XT, 3M) composite resin.Materials and methodsEight disk-shaped specimens (4 mm diameter × 2 mm thick, ISO 4049) of each material were prepared for each test. Composites were inserted into single increment in a metallic matrix and light-cured for 40 seconds. VH readings were performed for each specimen at predetermined intervals: immediately after polymerization (control), 1, 2, 3, 7, 14, 21, 30 and 180 days. After curing, initial hardness measurements were performed and the specimens were immersed in artificial saliva at 37°C. For DC (%), specimens were ground, pressed with KBr and analyzed by FT-IR spectrophotometer.ResultsStudent t-test showed that there was no difference between the resins for DC (p = 0.252). ANOVA analysis revealed that Z-250 VH means were all greater than S-XT, for both top and bottom surfaces, whatever the storage-period in artificial saliva (p < 0.001). After 180 days of storage, the hardness obtained for S-XT was similar with that at the baseline, for both top and bottom surfaces. While for Z-250 hardness was not significantly different from baseline only for top surface, but there was a significant decrease observed in hardness for bottom surface.ConclusionThe materials tested showed no evidence of hydrolytic degradation in a significant way, in a 6-month storagetime in artificial saliva. Nanofilled resin presents a monomer conversion comparable to the conventional microhybrid.How to cite this articleJassé FF, Borges CHB, Tonetto MR, de Souza Rastelli AN, Bagnato VS, de Campos EA, Bandeca MC, Saad JRC. Long-Term Surface Hardness and Monomer Conversion of a Nanofilled and a Microhybrid Composite Resin. J Contemp Dent Pract 2013;14(5):876-882.
Fluoride releasing and Uptake Capacities of Esthetic Restorations
Authors: Shetty Rajesh , Gururaj M , Shetty Shwetha , Kumar CN Vijay 
Published: February 2014

ABSTRACT

Background and objectives
The purpose of this study was to evaluate and compare in vitro the fluoride release and uptake from 5 different esthetic restorative materials.

Materials and methods
Materials tested were conventional GIC — Fuji 7, GC (group1), resin modified GIC — Vitremer, 3M ESPE (group 2), polyacid modified composite — Dyract, Dentsply (group 3), fluoride releasing composite — Tetric ceram, Ivoclar Vivadent (group 4), Giomer-Beautifil, Shofu (group 5). Fluoride release was estimated at 6th, 24th, 48th hour and weekly interval for 5 weeks. For fluoride recharge, each specimen was exposed to 2 ml of 1.23% APF gel for 4 minutes and fluoride release measured at 1st, 2nd, 3rd day and 7th day. The fluoride release and recharge was measured using fluoride ion specific electrode.

Results
ANOVA and Tukey HSD test were used for statistical analysis. During tested period all materials showed statistically different capability to release and uptake fluoride. Groups 1 and 2 results were comparable in fluoride release. Similarly groups 3 and 5. Groups 1 and 2 vs 3, 4, 5 were statistically very highly significant. Only conventional GIC showed initial ‘burst effect’.

Interpretation and conclusion
Materials tested showed potential for fluoride release and recharge. Different esthetic materials had variable fluoride release hence selection of materials should be guided by specific clinical situations.

How to cite this article
Gururaj M, Shetty R, Nayak M, Shetty S, Kumar CNV. Fluoride releasing and Uptake Capacities of Esthetic Restorations. J Contemp Dent Pract 2013;14(5): 887-891.
A Study to evaluate the Frequency and Association of Various Mucosal Conditions among Geriatric Patients
Authors: Shet RGK , Shetty Shobith R , Kalavathi M , Kumar M Naveen , Yadav Rishi Dev , Soumya S 
Published: February 2014

ABSTRACTGeriatric dentistry or gerodontics is the delivery of dental care to older adults involving the diagnosis, prevention and treatment of problems associated with normal aging and age-related diseases as part of an interdisciplinary team with other health care professionals.AimTo evaluate the oral mucosal status in the elderly population of different age group and find out the association of age, gender and denture with oral mucosal disorders.Materials and methodsThe study sample consisted of 570 geriatric persons concentrating mainly on the oral mucosal changes or lesions occurring in the geriatric population. Individuals those are aged above 60 years were selected, and all the examined geriatric persons were categorized into 3 age groups to find out the association of oral mucosal lesions in each group.Group I—60 to 65 years, Group II—66 to 70 years, Group III—71 and above years.ResultsThe sample of 570 elderly patients included 279 (48.95%) men and 291 (51.05%) women in three age groups: 61 to 65 years (40.35%), 66 to 70 years (31.05%), and 71 years and older (28.60%). The sample included 254 (44.56%) dentate patients, 205 (35.96%) denture wearers (partial and complete denture wearers) and 111 (19.47%) edentulous persons who lacked dentures in both the jaws. Almost half of the patients examined (48%) had one or more oral mucosal lesions. The 48% of the patients who presented with oral mucosal lesions, twenty five different oral mucosal conditions were identified and the three most common findings were lingual varices (13.68%), denture induced inflammatory fibrous hyperplasia (4.21%), squamous cell carcinoma (4.21%). There was some differences in the distribution of oral mucosal condition among the sexes. Leukoplakia and dysplasia were significantly associated with men (p < 0.001) whereas the association of fibroma and lichen planus with women were significant (p < 0.001).ConclusionIn our study it was found that patients in groups II and III had more prevalence of oral mucosal disorders. Lingual varices, oral squamous cell carcinoma, fibroma and denture induced inflammatory fibrous hyperplasia were more commonly associated with the geriatric patients. The oral lesions (fibroma and lichen planus) were strongly associated with women while leukoplakia was strongly associated with men. Ageing is an important factor that can influence the occurrence of mucosal lesions and with age the oral mucosa becomes more permeable to noxious substances and more vulnerable to external carcinogens.How to cite this articleShet RGK, Shetty SR, M Kalavathi, Kumar MN, Yadav RD, S Soumya. A Study to evaluate the Frequency and Association of Various Mucosal Conditions among Geriatric Patients. J Contemp Dent Pract 2013;14(5):904-910.
Comparison of Mutans Streptococcal Strains of Father, Mother, and Child in Indian Families using Chromosomal Dna Fingerprinting
Authors: Katre Amar N , Damle SG 
Published: February 2014

ABSTRACTIntroductionIt is now understood and accepted that there is a direct transmission of mutans streptococci (MS) from the mother to the child. There is also a direct correlation between the levels of MS in the mother and the caries status of the child. Advanced technologies in molecular biology like chromosomal DNA fingerprinting have established beyond doubt that the mother and the child bear similar strains of MS.AimA study was designed with the aim of comparing the MS strains between the father, mother and the child in Indian families.Materials and methodsA group of 20 Indian families comprising of the father, mother and child were selected and divided into caries free and caries active groups. Mixed salivary samples were collected from the individuals and were cultured for the growth of Mutans streptococci. The colonies were counted on a colony counter and a comparison was made between the mutans streptococcal counts of the mother and the caries status of the child. Further, the genotypes of the father, mother and the child were isolated and compared using the technique of chromosomal DNA fingerprinting. Following electrophoresis, the band pattern obtained was compared for similarities or differences. The results of the same were tabulated and evaluated statisticallyResultsWhen the colony counts of the mother (in CFU/ml) were compared with the ‘dft’ status of the child, a positive correlation was seen in group II. Intergroup comparison using the unpaired T test was statistically significant. Electrophoretic analysis of the chromosomal DNA on the agarose gels revealed identical band patterns in 13 mother-child pairs, which was statistically significant. Three of the father-child pairs showed identical band patterns, which was statistically significant. Intergroup comparison using Chi-square test was not statistically significant.ConclusionOne may conclude that irrespective of the caries status of the child, majority of the mother child pairs share identical strains of MS and hence the mother is the primary source of infection. However, in children with a high dft, the father may also play an important role in the acquisition and transmission of MS.How to cite this articleKatre AN, Damle SG. Comparison of Mutans Streptococcal Strains of Father, Mother, and Child in Indian Families using Chromosomal DNA Fingerprinting. J Contemp Dent Pract 2013;14(5):911-916.
Pressure-induced Alopecia from Orthodontic Headgear
Authors: Premkumar Sridhar , Vidya Kalanjiam 
Published: February 2014

ABSTRACT
Every treatment in the dental specialty has its own set of complications, Orthodontic therapy being no exception. Such a problem during the course of treatment puts the specialist in a dilemma as to whether to continue or stop the treatment.
One such case in which during headgear therapy, a rare complication such as alopecia was encountered has been dealt with in this paper. This case report shows its effective management while still continuing treatment, thus leading to the desired result. It emphasizes on the importance of maintaining a balance between the benefits and risks of a treatment.

Clinical relevance
The use of headgear can lead to the rare complication of alopecia and the clinician should be aware of it.

Objective
The reader should understand the psychological implications of alopecia and also to carry out the treatment after assessing the risk/benefit ratio.

How to cite this article
Premkumar S, Vidya K. Pressureinduced Alopecia from Orthodontic Headgear. J Contemp Dent Pract 2013;14(5):954-956.
The Museum Maze in Oral Pathology Demystified: Part II
Authors: Ganavi BS 
Published: February 2014

ABSTRACT
Museum technology is perpetually changing due to current requirements and added inventions for our comfort and furbished display of specimens. Hence numerous methods of specimen preservation have been put on trial by diverse people in the medical field as are the inventions. But only few have caught people's interest and are popularized today. This part provides unique insights into specialized custom-made techniques, evolution of recent advances like plastination and virtual museum that have popularized as visual delights. Plastination gives handy, perennial life-like acrylic specimens, whereas virtual museum takes museum field to the electronic era making use of computers and virtual environment.

How to cite this article
Patil S, Rao RS, Ganavi BS. The Museum Maze in Oral Pathology Demystified: Part II. J Contemp Dent Pract 2013;14(5):987-992.
Hemangioma: Review of Literature
Authors: Kalra Amit , Jaggi Nitin , Ahuja Tarun , Bansal Kanishka , Sharma Shiv Prasad 
Published: February 2014

ABSTRACT
Hemangiomas are tumors identified by rapid endothelial cell proliferation in early infancy, followed by involution over time. All other abnormalities are malformations resulting from anomalous development of vascular plexuses. The malformations have a normal endothelial cell growth cycle that affects the veins, the capillaries or the lymphatics and they do not involute. Hemangiomas are the most common tumors of infancy and are characterized by a proliferating and involuting phase. They are seen more commonly in whites than in blacks, more in females than in males in a ratio of 3:1.

How to cite this article
Ahuja T, Jaggi N, Kalra A, Bansal K, Sharma SP. Hemangioma: Review of Literature. J Contemp Dent Pract 2013;14(5):1000-1007.
When Multinationals Leave: A CGE Analysis of the Impact of Divestments
Authors: Gómez-Plana Antonio G. , Latorre María C. 
Published: February 2014

Abstract
Most studies on Multinational Enterprises (MNEs) focus on the impact of their expansion through inward or outward foreign direct investment (FDI) flows. However, divestments are quite common among the operations of MNEs. In order to derive their effects, we build a computable general equilibrium (CGE) model that includes two non-standard characteristics: the presence of MNEs and unemployment. The model is applied to the Spanish economy, where FDI inflows have surpassed divestments at the aggregate level in the period 2005-2009, although divestments have been sizeable in ten sectors. We analyse two different scenarios: 1) divestments that involve the closure of plants of foreign affiliates and 2) divestments where national firms buy the plant of foreign affiliates. The model allows estimating the overall impact of the divestments occurring simultaneously in ten sectors and in particular sectors. Results not only show that national acquisitions are less harmful than closures, but quantify those effects, and provide information on the role of the divesting sector. Some adjustment costs arise in all scenarios.
L’utilisation de « groupes de discussion » dans la recherche en déficience intellectuelle
Authors: Julien-Gauthier Francine , Héroux Jessy , Ruel Julie , Moreau André 
Published: February 2014

Cet article est le premier de deux articles portant sur une étude qui a pour but d’identifier les meilleures pratiques pour l’utilisation du groupe de discussion focalisée en général, puis avec des participants ayant une déficience intellectuelle en particulier. Le premier article présente les meilleures pratiques répertoriées lors de la recension des écrits. Les résultats de cette recension sont regroupés en cinq dimensions : le recrutement des participants, le consentement à la recherche, la structure des rencontres, l’animation des rencontres ainsi que leur contenu. Les résultats proposent des aménagements aux façons de faire traditionnelles du groupe de discussion focalisée afin de les rendre plus accessibles à une diversité de participants et de faciliter l’expression de leur point de vue.
Dawn‐dusk asymmetry in solar wind ion entry and dayside precipitation: Results from large‐scale simulations
Authors: Berchem J. , Richard R. , Escoubet P. , Wing S. , Pitout F. 
Published: February 2014

AbstractWe present the results of numerical studies of the interaction of solar wind ions with the dayside magnetospheric boundary for a southward interplanetary magnetic field and two solar wind speeds (250 and 500 km/s) using the results of global magnetohydrodynamics simulations in conjunction with large‐scale kinetic calculations. Results of these studies show that a dawn‐dusk asymmetry is found in the precipitation of low‐ to middle‐energy ions over the high‐latitude dayside magnetosphere. This asymmetry is consistent with statistical studies of DMSP data showing that ion precipitation from the mantle is predominantly seen over the morning and prenoon sector. Analysis of energy‐latitude spectra and study of individual particle trajectories from the simulations revealed that low‐energy ions can enter the magnetopause at high latitudes in regions where the parallel electric field associated with the magnetopause current is positive and strong enough for the ions to gain energies of the order of the parallel potential drop across the magnetopause. Because the parallel electric field in the Northern Hemisphere is positive in the prenoon sector and negative in the afternoon‐evening sector, solar wind ions reaching the magnetopause in these regions are accelerated toward the ionosphere on the dawnside and outward on the duskside, creating the asymmetry in precipitation. The same dawn‐dusk asymmetry is found in the Southern Hemisphere because both parallel electric field and magnetic field are reversed in direction.
Standardized Cryopreservation of Pluripotent Stem Cells
Authors: Cohen Rick I. , Thompson Maria L. , Schryver Brian , Ehrhardt Rolf O. 
Published: February 2014

AbstractThe successful exploitation of human cells for research, translational, therapeutic, and commercial purposes requires that effective and simple cryopreservation methods be applied for storage in local and master cell banks. Of all the cell types utilized in modern research, human embryonic stem cells and their more recent relatives, induced pluripotent stem cells, are two of the most sensitive to cryopreservation. It is frequently observed that the lack of quality control and proper processing techniques yield poor recovery of pluripotent stem cells. The procedures in this unit have been optimized for handling some of the most recalcitrant stem cell lines, and provide a method for controlled‐rate freezing, using minimal equipment that affords levels of cell viability comparable to expensive controlled‐rate freezers. The protocol also eliminates the requirement for isopropanol, avoiding the hazards, on‐going cost, and inconsistencies associated with its use and disposal. It provides a clinically relevant, inexpensive, reliable, and user‐friendly method that successfully prepares cells for long‐term cold storage and ensures maximum levels of cell viability post thaw. Curr. Protoc. Stem Cell Biol. 28:1C.14.1‐1C.14.10. © 2014 by John Wiley & Sons, Inc.
Expansion of Human Hematopoietic Stem/Progenitor Cells on Decellularized Matrix Scaffolds
Authors: Tiwari Abhilasha , Tursky Melinda L. , Kirkland Mark A. , Pande Gopal 
Published: February 2014

AbstractUmbilical cord blood (UCB) is one of the richest sources for hematopoietic stem/progenitor cells (HSPCs), with more than 3000 transplantations performed each year for the treatment of leukemia and other bone marrow, immunological, and hereditary diseases. However, transplantation of single cord blood units is mostly restricted to children, due to the limited number of HSPC per unit. This unit develops a method to increase the number of HSPCs in laboratory conditions by using cell‐free matrices from bone marrow cells that mimic ‘human‐body niche‐like’ conditions as biological scaffolds to support the ex vivo expansion of HSPCs. In this unit, we describe protocols for the isolation and characterization of HSPCs from UCB and their serum‐free expansion on decellularized matrices. This method may also help to provide understanding of the biochemical organization of hematopoietic niches and lead to suggestions regarding the design of tissue engineering–based biomimetic scaffolds for HSPC expansion for clinical applications. Curr. Protoc. Stem Cell Biol. 28:1C.15.1‐1C.15.15. © 2014 by John Wiley & Sons, Inc.