bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of Serum Lipids and Lipoproteins as Prognosticators in Leukoplakia
Authors: Ganavi BS , Patil Shankargouda 
Published: January 2015

ABSTRACT

Background
Oral cancer is the 8th most common cancer worldwide. Squamous cell carcinomas constitute 94% of all oral malignancies and are often preceded by leukoplakia. Despite many adjunctive techniques to monitor transformation of leukoplakia to oral squamous cell carcinoma (OSCC), the mortality rate is on the rise.
Incidentally, patients diagnosed with oral potentially malignant disorders (OPMDs) and oral cancers manifest with low choles-terol levels. Given a thought, hypolipidemia may be a useful adjunctive tool as it reflects the initial changes within the neo-plastic cells, thus giving a red alert in malignant transformation of leukoplakia at the earlier stage.

Aim
To evaluate the feasibility of serum lipid profile as an adjunct early marker for malignant transformation of leukoplakia to OSCC.

Objectives
To estimate the serum cholesterol, triglycerides and lipoprotein (HDL, LDL, VLDL) levels in patients with leukoplakia, OSCC and age matched healthy control group.
To compare the serum cholesterol, triglycerides and lipoprotein levels between patients of leukoplakia, OSCC and age matched healthy control group.

Materials and methods
The study group comprised of selected 30 individuals which included 10 each of histopathologically confirmed OSCC, leukoplakia and healthy controls. A written consent was taken from all of them, and a thorough case history was recorded and then venous blood was collected 12 hours post fasting and centrifuged. The serum cholesterol, triglycerides and HDL were estimated by enzymatic and colorimetric methods using commercially available kits — Roche/ Hitachi cobas systems. Chemistry assay QC procured from Bio-Rad was used as control. VLDL and LDL were derived from these values. Results were statistically analyzed using ANOVA and post hoc Tukey Test.

Results
Oral squamous cell carcinoma patients demonstrated significantly lower mean serum cholesterol level (151.60 mg/dl) than the control group (183.70 mg/dl). The mean cholesterol level in leukoplakia patients (173.90 mg/dl) was lower than that of control group (183.70 mg/dl) but higher than that of the OSCC group (151.60 mg/dl) with no statistical significance.

Conclusion
Convenience, universal availability, patient compatibility and simplicity being the merits of serum lipid profile make it a feasible adjunctive prognosticator in leukoplakic patients.

How to cite this article
Ganavi BS, Patil S, Rao RS. Evaluation of Serum Lipids and Lipoproteins as Prognosticators in Leukoplakia. J Contemp Dent Pract 2014;15(3):294-299.
A Quantitative Analysis of Mast Cells in Inflammatory Periapical and Gingival Lesions
Authors: Rao Kavita , Priya NS , Uma K , Umadevi HS , Smitha T 
Published: January 2015

ABSTRACT

Aim
The aim of the study was to quantify the presence of mast cells in various inflammatory lesions like periapical granuloma, periapical cyst, inflammatory gingival hyperplasia and pyogenic granuloma. Mast cell degranulation and association with lymphocytes were also recorded in an attempt to understand the role of mast cells in the pathogenesis of these inflammatory lesions.

Materials and methods
The quantification of mast cells was done on toluidine blue stained sections of all the four groups of lesions, using the image analyzer software, Image-Pro-Express (Media Cybernetics, USA).

Results
An increased number of mast cells in various inflammatory lesions with a significant difference between the four groups were noted. Mast cell number tended to be greater in the lesions present in the anterior region of the mouth than in the posterior region of the oral cavity. The mean mast cell number decreased with the increasing age which was directly correlated with the age of the patients. Mast cell site, distribution, degranulation and its association with fibroblasts, lymphocytes and blood vessels were noted.

Conclusion
The location of mast cells in different areas, their association with lymphocytes, fibroblasts, endothelial cells, and the phenomenon of degranulation helps to appreciate the release of various mediators and multiple interactions among these cells, leading to increased vascular permeability, angiogenic response, collagen synthesis, regulation of inflammation, bone resorption, and extracellular matrix destruction, thus contributing to the pathogenesis of these inflammatory lesions.

How to cite this article
Sheethal HS, Uma K, Rao K, Priya NS, Umadevi HS, Smitha T. A Quantitative Analysis of Mast Cells in Inflammatory Periapical and Gingival Lesions. J Contemp Dent Pract 2014;15(3):300-305.
Evaluation of the Effect of a Home-bleaching Agent on the Surface Characteristics of Indirect Esthetic Restorative Materials: Part I—Roughness
Authors: Vojdani Mahroo , Torabi Kianoosh , Rasaeipour Sasan , Khaledi Amir Alireza , Ghodsi Safoura 
Published: January 2015

ABSTRACT

Background
Pressing esthetic demands of good looking make people undergo bleaching procedures. However, the effect of bleaching agents on esthetic restorative materials with different surface preparations has been poorly studied.

Aim
The aim of this study was to examine the effect of a homebleaching agent (carbamide peroxide: CP 38%) on the surface roughness of the polished fiber reinforced composite (FRC), overglazed, autoglazed, or polished ceramic samples.

Materials and methods
Twenty standardized cylindrical specimens were made of each of the following groups: overglazed, autoglazed, polished porcelain and also FRC. The test specimens exposed to the CP 38%, 15 minutes, twice a day for 2 weeks according to the manufacturer's recommendation. Six samples from each group were selected randomly to form negative controls. Surface roughness measurements (Ra, micrometer) for baseline, test and control specimens were performed by use of a profilometer. Paired t-test, Mann-Whitney test, and Kruskal-Wallis test were used for statistical analyses.

Results
The data showed that bleaching with CP 38% significantly increased the surface roughness of all the test samples (p < 0.05). The type of surface preparation caused significant differences between the susceptibility of porcelain subgroups to bleaching (p < 0.05). The polished porcelain specimens showed the highest changes after bleaching.

Conclusion
CP 38% significantly increases the surface roughness of the porcelains and FRC. The type of surface condition affects the amenability of the porcelain surface to the bleaching agent. Glazed porcelains were more resistant to roughness than the polished porcelains and also the composite.

Clinical significance
Roughening of porcelain and FRC occur following bleaching procedure. No special surface preparation of indirect esthetic restorative materials can completely preserve these materials from adverse effects of bleaching agents.

How to cite this article
Torabi K, Rasaeipour S, Khaledi AA, Vojdani M, Ghodsi S. Evaluation of the Effect of a Homebleaching Agent on the Surface Characteristics of Indirect Esthetic Restorative Materials: Part I—Roughness. J Contemp Dent Pract 2014;15(3):326-330.
Marginal Adaptation of Class V Restorations with Current- Generation Dentin-Bonding Agents: Effect of Different Dentin Surface Treatments
Authors: de Andrade Marcelo Ferrarezi , Borges Alvaro Henrique , Bandéca Matheus Coelho , Saad José Roberto Cury , de Campos Edson Alves , Santos Reidson Stanley Soares dos , Dantas Andrea Abi Rached , Cavalheiro Jessica Patrícia , Tonetto Mateus Rodrigues 
Published: January 2015

Abstract
This study sought to assess the use of chlorhexidine with several excipients as a dentin surface treatment and its effect on marginal adaptation of class V restorations with currentgeneration dentin bonding agents. A total of 120 human third molars were selected and allocated into 12 groups, with standardized buccal class V restorations randomly divided into preconditioned dentin rinsed with: water; water + chlorhexidine; ethanol; or ethanol + chlorhexidine. After rinsing of dentin (previously conditioned with 35% phosphoric acid) with the test solutions, the Adper single bond 2, prime and bond 2.1, and Excite bonding systems were applied randomly. Restorations were performed with Filtek™ Z350 XT composite resin. The resulting specimens were subjected to thermal and mechanical load cycling. Quantitative analysis of marginal adaptation was performed on epoxy replicas by means of scanning electron microscopy. Results were assessed by means of the Kruskal- Wallis test (percentages of continuous margins) and Wilcoxon test (differences between percentages of continuous margins before and after thermal cycling and mechanical loading), at a significance level of p < 0.05. Outcomes in the chlorhexidinetreated groups were not superior to those obtained with other treatments.

How to cite this article
Cavalheiro JP, Tonetto MR, Borges ÁH, Bandéca MC, dos Santos RSS, de Campos EA, Saad JRC, Dantas AAR, de Andrade MF. Marginal Adaptation of Class V Restorations with Current-Generation Dentin-Bonding Agents: Effect of Different Dentin Surface Treatments. J Contemp Dent Pract 2014;15(3):331-335.
Unstimulated Whole Saliva Cortisol Levels during Ramadan in Iranian Muslims
Authors: Mirzaii-Dizgah Iraj , Vasaghi-Gharamaleki Behnoosh 
Published: January 2015

ABSTRACTAimsRamadan is a great opportunity for scientific research due to its peculiar nature. This study was designed to investigate whether morning saliva cortisol pick can change during and after Ramadan compared to before it.Materials and methodsA total of 30 healthy volunteer men (aged between 30 and 76 years) were asked to participate in a cross-sectional study between August 12 and September 10, 2010. Saliva was collected 2 weeks before the beginning of Ramadan (BR), during the first week (R1), middle (R2), the last week (R3) of Ramadan and 3 weeks after Ramadan (AR). Cortisol concentration was analyzed by ELISA. Statistical analysis of one-way repeated measures analysis of variance (ANOVA) was used.ResultsThe mean unstimulated saliva cortisol concentration and its output were significantly higher in the BR than during and after Ramadan.ConclusionMean saliva cortisol concentration and its output tended to be lower during and 3 weeks after Ramadan.Clinical significanceCortisol as a stress hormone seems to be low during Ramadan.How to cite this articleVasaghi-Gharamaleki B, Mirzaii-Dizgah I. Unstimulated Whole Saliva Cortisol Levels during Ramadan in Iranian Muslims. J Contemp Dent Pract 2014;15(3):341-344.
Knowledge, Practice and Utilization of Dental Services among Pregnant Women in the North of Jordan
Authors: Malkawi Zain A , Tubaishat Reem S 
Published: January 2015

ABSTRACT

Aim
The aim of this study was to evaluate women's oral hygiene knowledge, practice, and use of dental services during pregnancy in the north of Jordan.

Materials and methods
Voluntary sample of 154 pregnant women of 18 to 40 years old were invited to participate in the study. They were asked to read a self-designated questionnaire and a cover letter which explained the purpose of the study. The questionnaire addressed self-reported demographics, knowledge, practice and use of dental services during pregnancy. Data were statistically analyzed using Chi-square test to determine statistically significant differences across knowledge, practice and use of dental services during pregnancy.

Results
The sample included 29.3% aged 20 to 24 years old; 33.1% having bachelor degree; and 66.9% were housewives. The majority of study sample 68.2% knew they need dental consultation during pregnancy; however, 39.5% received dental consultation during pregnancy. Majority 62.4% brushed their teeth regularly; however, 73.2% does not use auxiliary dental hygiene devices. Majority 44.5% visited dentist, when they feel pain. Statistically significant association were found between educational level and knowledge about need to dental consultation during pregnancy (p = 0.012); educational level and knowledge about link between pregnancy and periodontal diseases (p = 0.01); and economic status and use of auxiliary dental hygiene devices during pregnancy (p = 0.040).

Conclusion
Pregnant women brushed their teeth regularly and visited dentist occasionally. Income was significantly associated with increase use of auxiliary dental hygiene devices. Educational level was significantly associated with mothers’ knowledge about the need for consultation and possible link between pregnancy and periodontal diseases.

How to cite this article
Malkawi ZA, Tubaishat RS. Knowledge, Practice and Utilization of Dental Services among Pregnant Women in the North of Jordan. J Contemp Dent Pract 2014;15(3):345-351.
Management of a Malpositioned Implant using Custom Abutment and Screw-Retained Fixed Dental Prosthesis
Authors: Turkyilmaz Ilser 
Published: January 2015

ABSTRACT
A 32-year-old woman with missing permanent mandibular right molars and left first molar presented for treatment. One of the implants were misaligned during the placement due to sudden mouth closure of the patient. All implants successfully osseointegrated. However, the misaligned implant resulted in substantial mechanical and esthetic restorative challenges. The prosthodontic treatment included a custom abutment and a screw-retained fixed dental prosthesis on the right side. The patient did not report any problems with the implants and restorations during the first year of service. The treatment presented in this clinical report may be an alternative option to restore malpositioned implants.

How to cite this article
Turkyilmaz I. Management of a Malpositioned Implant using Custom Abutment and Screw-Retained Fixed Dental Prosthesis. J Contemp Dent Pract 2014;15(3): 381-384.
Comparison of Internal Fit between Implant Abutments and Cast Metal Crowns vs Laser-sintered Crowns
Authors: Kiliçarslan Mehmet Ali , Özkan Pelin , Uludag Bülent , Mumcu Emre 
Published: January 2015

ABSTRACT

Aim
A common problem related to cemented single crowns is the internal misfit, which may cause inadequate retention, especially when seated on the implant abutment. The aim of this study was to compare the internal fit of Co-Cr crowns using a traditional lost-wax casting technique from laser-sintered Co-Cr alloy crowns.

Materials and methods
Twelve metallic crowns per each technique were fabricated. The effect of the thickness of cement, originated internal gap was evaluated. Crowns were cemented on the implant abutments with resin cement, and the internal fit of crowns was measured at five areas with an optical microscope. The data were analyzed, and the means were compared with a t-test (p<0.05).

Results
The internal gap width measurements for the lasersintered group (min. 52.19 ± 11.61 µm and max. 140.01 ± 31.84 µm) indicated the presence of a significantly closed internal gap compared to the crowns obtained through the lost wax method (min. 65.50 ± 9.54 µm and max. 313.46 ± 48.12 µm).

Conclusion
The fit of the metal crown likely varies with the fabrication technique. The use of techniques that enable the adjustment of crown parameters, such as the laser sintering technique, maintains the desired fit between casting and implant abutments.

Clinical significance
This study investigated which technique affects the internal fit of cemented implant-supported crowns, comparing the use of lost wax casting and laser-sintered metal dental alloys. The results of this study indicate that the use of laser-sintered crowns can improve for crown accuracy.

How to cite this article
Kiliçarslan MA, Özkan P, Uludag B, Mumcu E. Comparison of Internal Fit between Implant Abutments and Cast Metal Crowns vs Laser-sintered Crowns. J Contemp Dent Pract 2014;15(4):428-432.
Influence of Fiber Post Cementation Length on Coronal Microleakage Values in vitro and Finite Element Analysis
Authors: Bergoli César Dalmolin , de Carvalho Rodrigo Furtado , Balducci Ivan , Meira Josete Barbosa Cruz , de Araújo Maria Amélia Máximo , Valera Marcia Carneiro 
Published: January 2015

ABSTRACT

Aim
This study aims to evaluate, the influence of different fiber posts cementation lengths by finite element analysis (FEA) and coronal microleakage.

Materials and methods
Fifty anterior bovine teeth were sectioned to obtain roots with 16 mm length. The coronal length of the post was 6 mm for all groups, while the radicular length were varied 6, 8, 10 or 12 mm. The fiber posts surfaces were cleaned with alcohol and silanized. Then the posts were cemented using a two steps total etch-and-rinse adhesive system + conventional resin cement. Forty teeth were submitted to mechanical cycling (45°; 2.000.000 cycles; 90N; 4Hz; 37°C) and ten teeth with radicular length of 12 mm was not submitted, serving as control. So, the experimental design was composed by different ratios of post coronal length/post radicular length and mechanical cycling (MC): Gr1- 1/1 + MC; Gr2- 3/4 + MC; Gr3- 3/5 + MC; Gr4- 1/2 + MC. All groups were immersed in a 1% toluidine blue solution. After 24 hours, the teeth were longitudinally sectioned and the microleakage scores was given by a blind operator. Data were submitted to Kruskal-Wallis test (p = 0.05). The experimental variables were simulated in twodimensional finite element analysis (2D-FEA). The maximum principal stress distributions were compared.

Results
No difference was observed in microleakage values between the cycled groups, whilst the control groups showed the lowest values. FEA analysis showed similar maximum principal stress distribution between the groups.

Conclusion
Mechanical cycling affected the values of coronal microleakage and different cementation length generated similar values of coronal microleakage and stress distribution.

Clinical significance
These results showed that from the microleakage point of view, more conservative cementation lengths have the same effect as longer cementation lengths.

How to cite this article
Bergoli CD, de Carvalho RF, Balducci I, Meira JBC, de Araújo MAM, Valera MC. Influence of Fiber Post Cementation Length on Coronal Microleakage Values in vitro and Finite Element Analysis. J Contemp Dent Pract 2014; 15(4):444-450.
The Radix Entomolaris and Radix Paramolaris: An Endodontic Challenge
Authors: Agarwal Manoj , Trivedi HP , Mathur Meetu , Goel Deepak , Mittal Sankalp 
Published: January 2015

ABSTRACTSuccess of endodontic treatment depends on the proper identification of all the canals, thorough chemomechanical preparation followed by three-dimensional obturation with hermetic seal. Failure of any of these steps may occur due to unusual tooth morphology. Usually mandibular molars have two roots with three canals but in few teeth, the number of roots and canals vary. The variation in the number of roots, if extra root located lingually called radix entomolaris (RE) or located bucally called radix paramolaris (RP). This article presents successful endodontic treatment of two mandibular first molars with extra roots one is with radix entomolaris and other is with radix paramolaris, both of which are rare microstructures.How to cite this articleAgarwal M, Trivedi HP, Mathur M, Goel D, Mittal S. The Radix Entomolaris and Radix Paramolaris: An Endodontic Challenge. J Contemp Dent Pract 2014;15(4): 496-499.
The Ambiguous Salivary Myoepithelial Cells
Authors: Sanketh DS , Amrutha N , Agarwal Anveeta 
Published: January 2015

ABSTRACT
Salivary gland neoplasms present with a diverse histological pattern which is mainly because of the presence of specialized myoepithelial cells (MECs). These are contractile epithelial cells with smooth muscle like properties. They have been also noticed in mammary glands, lacrimal glands, prostate gland, and the sweat glands and have varied functions. MECs play an important role in the histogenesis of many salivary gland tumors. Knowledge of MECs leads to a better understanding of the histological diversity of salivary gland neoplasms. This article reviews the physiology, histology, identification and role of these cells in salivary gland pathology.

How to cite this article
Rao RS, Patil S, Amrutha N, Sanketh DS, Agarwal A. The Ambiguous Salivary Myoepithelial Cells. J Contemp Dent Pract 2014;15(4):523-528.
Formação do professor de Ensino Religioso: estudo das grades curriculares nos cursos de Pedagogia presencial da cidade de Cascavel-PR
Authors: Saucedo Kellys Regina Rodio , Malacarne Vilmar 
Published: January 2015

No Estado do Paraná, a Deliberação nº 01/06 do Conselho Estadual de Educação prioriza o exercício da docência do Ensino Religioso nos anos iniciais do Ensino Fundamental para os pedagogos e nos anos finais, entre outras licenciaturas, exige-se especialização em Ensino Religioso. Com o objetivo de investigar a formação do pedagogo para atuar com essa disciplina, realizou-se um levantamento de documentos, leis federais, estaduais e um estudo da grade curricular de quatro Instituições de Ensino Superior (IES) que ofertam a graduação em Pedagogia presencial, na cidade de Cascavel, Paraná. Os resultados desses dados indicaram a ausência de conteúdos que relacionem conhecimentos de ênfase científica a conhecimentos sobre cultura religiosa nas quatro instituições investigadas. Conclui-se que, não obstante a existência de leis que assegurem a disciplina de Ensino Religioso nas escolas de Ensino Fundamental, é emergente a necessidade de políticas efetivas que promovam a profissionalização dos pedagogos para esta área do conhecimento, inserindo nas grades curriculares dos cursos de formação inicial conteúdos ou disciplina com os fundamentos para a docência do Ensino Religioso.
Pesquisa em Políticas Educacionais e Gestão da Educação Básica: produções discentes dos programas de pós-graduação em educação da região Sul (2000-2010)
Authors: Farenzena Nalu , Cardoso Caroline Cristiane 
Published: January 2015

O objetivo do texto é apresentar um panorama da produção acadêmica discente sobre gestão da educação e políticas educacionais na educação básica dos programas de pós-graduação em educação da região sul do Brasil, considerando o período 2001-2010. Antecedendo a apresentação do panorama, é contemplada uma síntese de alguns estudos sobre a produção acadêmica na mesma área. A produção é categorizada a partir dos seguintes recortes: tipo de pesquisa (tese ou dissertação); por instituição; grandes temáticas que foram objeto de estudo; detalhadas conforme o território a que se referem. Verificou-se uma produção crescente na área, concentrada na categoria temática políticas públicas, com predominância do foco no território município.
Da psicologia cognitiva à cognição musical: um olhar necessário para a educação musical
Authors: Meirelles Alexandre , Stoltz Tania , Lüders Valeria 
Published: January 2015

O presente artigo é um estudo bibliográfico que aborda como o domínio de conhecimento da música foi influenciado pela psicologia cognitiva, formando a disciplina de psicologia da música, ou como alguns autores denominam cognição musical. Esta recente aproximação trouxe certa interdisciplinaridade proporcionando avanços na compreensão de como a mente humana relaciona-se com a música. Aborda-se também neste texto como recentes pesquisas em cognição musical podem contribuir para a educação musical e para a educação como um todo. Nesse sentido, a literatura tem apontado a influência sociocultural no aprendizado informal e no desenvolvimento de habilidades cognitivas multimodais no que tange a educação musical formal. Conclui-se que a educação musical deve levar em conta os avanços das ciências cognitivas integrando e repensando novas formas de ensino que abarquem a cognição como um todo.