bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of Surgically Induced Astigmatism on the Posterior Surface of the Cornea
Authors: Nemeth Gabor , Berta Andras , Szalai Eszter , Hassan Ziad , Modis Laszlo 
Published: July 2014

PURPOSE:
To measure surgically induced astigmatism (SIA) on the posterior surface of the cornea using Scheimpflug-based keratometry on eyes with with-the-rule astigmatism.

METHODS:
Repeated Scheimpflug-based keratometry was obtained preoperatively and a mean of 8.65 weeks postoperatively following superior clear corneal incisions. Differences in the keratometric values and SIA were determined on the anterior and posterior surfaces separately and the data were analyzed.

RESULTS:

The study included 88 eyes of 88 patients (age range: 46.4 to 87.5 years), with the steepest total corneal meridian between 75° and 105°. Preoperatively, the magnitude of the anterior and posterior corneal astigmatism was 0.74 ± 0.44 and 0.29 ± 0.14 diopters (D), respectively, which was greater than 0.5 D in 10 eyes (11.36%). The difference between preoperative and postoperative keratometric data on the posterior surface was significant, as was the difference between the preoperative and postoperative posterior astigmatism. The mean magnitude of posterior corneal SIA was 0.32 ± 0.29 D, which was 0.5 D or greater in 22 eyes (25.00%). A statistically significant correlation was observed between the diopter of the preoperatively measured posterior corneal astigmatism and the postoperative SIA on the posterior surface (r = 0.34,
P
= .001). The correlation was not significant between SIA on the anterior and posterior surfaces (r = 0.10,
P
= .36).

CONCLUSIONS:
SIA on the posterior surface of the cornea may have a significant role, especially in cases of toric intraocular lens implantation. Posterior corneal astigmatism and SIA may have a significant clinical impact on more precise planning of cataract surgeries.

[
J Refract Surg.
2014;30(9):604–608.]
Comparison of phenotype and differentiation marker gene expression profiles in human dental pulp and bone marrow mesenchymal stem cells
Authors: Ponnaiyan Deepa , Jegadeesan Visakan 
Published: July 2014

ABSTRACT
Objective: Bone marrow (BM) is the most utilized and well-studied source of stem cells. Stem cells from dental tissues have provided an alternate source of mesenchymal stem cells (MSCs). Dental pulp stem cells (DPSCs) have been shown to share a similar pattern of protein expression with BMMSCs in vitro. However, differences have been noted between DPSCs and BMMSCs. This study focuses on variation in expression of stem cell and differentiation markers between DPSCs and BMMSCs. Materials and Methods: The two stem cells were isolated and compared for clonogenic potential, growth characteristics, multipotency, and stem cell marker expression. Specifically, the fatty acid binding protein 4, perilipin, alkaline phosphatase and osteonectic gene expression was analyzed by real-time polymerase chain reaction to confirm the capacity for adipogenic and osteogenic differentiation. Results: MSCs from these cell sources were similar in their morphology and immune phenotype except for the expression of CD105. Growth curves and colony formation assay revealed proliferation rate of DPSCs was significantly faster than BMMSCs (P < 0.05). DPSCs appeared less able to differentiate into adipogenic lineage, although more able to differentiate into osteogenic lineage. Conclusion: Data from the present study indicate how DPSCs are different from BMMSCs though they are a population of MSCs. DPSCs are a novel population of MSCs as observed by their unique expression of differentiation and lineage specific genes. Further microarray analysis could be used to determine, which genes are differentially regulated in BMMSCs and DPSCs to establish uniqueness of each population of MSCs.
In vitro bond strength and fatigue stress test evaluation of different adhesive cements used for fixed space maintainer cementation
Authors: Cantekin Kenan , Delikan Ebru , Cetin Secil 
Published: July 2014

ABSTRACT
Objective: The purposes of this research were to (1) compare the shear-peel bond strength (SPBS) of a band of a fixed space maintainer (SM) cemented with five different adhesive cements; and (2) compare the survival time of bands of SM with each cement type after simulating mechanical fatigue stress. Materials and Methods: Seventy-five teeth were used to assess retentive strength and another 50 teeth were used to assess the fatigue survival time. SPBS was determined with a universal testing machine. Fatigue testing was conducted in a ball mill device. Results: The mean survival time of bands cemented with R & D series Nova Glass-LC (6.2 h), Transbond Plus (6.7 h), and R & D series Nova Resin (6.8 h) was significantly longer than for bands cemented with Ketac-Cem (5.4 h) and GC Equia (5.2 h) (P < 0.05). Conclusion: Although traditional glass ionomer cement (GIC) cement presented higher retentive strength than resin-based cements (resin, resin modified GIC, and compomer cement), resin based cements, especially dual cure resin cement (nova resin cement) and compomer (Transbond Plus), can be expected to have lower failure rates for band cementation than GIC (Ketac-Cem) in the light of the results of the ball mill test.
Effects of a bleaching agent with calcium on bovine enamel
Authors: Alexandrino Larissa , Gomes Yasmin , Alves Eliane , Costi Hilton , Rogez Hervé , Silva Cecy 
Published: July 2014

ABSTRACT
Objective: This in vitro study analyzed the effects of a bleaching treatment containing 35% hydrogen peroxide (HP) with or without calcium on bovine enamel, using the Knoop hardness number (KHN), tristimulus colorimetry (TC), and scanning electron microscopy. Materials and Methods: Forty-five specimens were randomly divided into groups (n = 5), which included artificial saliva (negative control [NC]), 35% HP (positive control [PC]), and 35% HP Blue Calcium (HP Blue). The specimens were subjected to three bleaching sessions. During the sessions, the specimens were immersed in artificial saliva at 37°C. Before and after bleaching, KHN tests were conducted using a force of 25 gf for 5 s. TC was performed using the CIE-L*a*b* system and readouts were obtained at the following 4 time points: Before the bleaching treatment; after the first session, the second session, and the third session. The specimens were dehydrated and coated with gold, and the photomicrographs were analyzed in a double-blind manner with a LEO microscope. Results: Using one-way analysis of variance and Tukey's test (P < 0.05), a statistically significant difference was identified between the initial and final mean KHNs of the NC and PC groups, while the initial and final mean KHNs were not significantly different in the HP Blue group. The final mean values of ⋄E, ⋄L, and ⋄b of the PC and HP Blue groups were significantly higher than the initial values (P < 0.01 for both). The photomicrographs revealed no differences among the groups. Conclusions: Therefore, treatment with HP Blue prevented changes in the KHN without reducing the efficacy of bleaching.
Efficiency of the Self Adjusting File, WaveOne, Reciproc, ProTaper and hand files in root canal debridement
Authors: Topcu K. Meltem , Karatas Ertugrul , Ozsu Damla , Ersoy Ibrahim 
Published: July 2014

ABSTRACT
Objectives: The aim of this study was to compare the canal debridement capabilities of three single file systems, ProTaper, and K-files in oval-shaped canals. Materials and Methods: Seventy-five extracted human mandibular central incisors with oval-shaped root canals were selected. A radiopaque contrast medium (Metapex; Meta Biomed Co. Ltd., Chungcheongbuk-do, Korea) was introduced into the canal systems and the self-adjusting file (SAF), WaveOne, Reciproc, ProTaper, and K-files were used for the instrumentation of the canals. The percentage of removed contrast medium was calculated using pre- and post-operative radiographs. Results: An overall comparison between the groups revealed that the hand file (HF) and SAF groups presented the lowest percentage of removed contrast medium, whereas the WaveOne group showed the highest percentage (P < 0.001). The ProTaper group removed more contrast medium than the SAF and HF groups (P < 0.05). Conclusions: None of the instruments was able to remove the contrast medium completely. WaveOne performed significantly better than other groups.
Does immediate dentin sealing influence the polymerization of impression materials?
Authors: Ghiggi Paula Cristine , Steiger Arno Kieling , Marcondes Maurem Leitão , Mota Eduardo Gonçalves , Burnett Luiz Henrique , Spohr Ana Maria 
Published: July 2014

ABSTRACT
Objectives: The objective of the following study is to evaluate the interaction between the resin materials used in immediate dentin sealing (IDS) techniques and impression materials with two different techniques to eliminate the oxygen-inhibition layer. Materials and Methods: The occlusal dentin surface of 35 human molars was exposed. The teeth were used in two Groups: Group 1 – Impression with Express XT; Group 2 – Impression with Impregum. Groups 1 and 2 were divided into 14 subgroups: Groups 1a and 2a – Control groups; 1b and 2b – IDS with Clearfil SE Bond (CSE); 1c and 2c – IDS with CSE + additional polymerization with glycerin jelly; 1d and 2d – IDS with CSE + alcohol; 1e and 2e – IDS with CSE and Protect Liner F (PLF); 1f and 2f – IDS with CSE and PLF + additional polymerization with glycerin jelly; and 1g and 2g – IDS with CSE and PLF + alcohol. Five teeth were used in each experimental group, and the tooth surface was photographed using a digital camera. Results: Small quantity of unpolymerized impression material remained attached to the CSE or to the PLF in Groups 1b and 1e. Groups 1c and 1d prevented the interaction. Small quantity of polymerized impression material remained attached to the CSE or to the PLF for Groups 2b and 2e. The same interaction was observed for Groups 2c and 2d. For Groups 2c and 2f, no interactions were observed. Conclusion: Resin materials interacted with impression materials. The application of glycerin jelly and alcohol prevented the interaction of CSE with Express XT and PLF with Impregum; however, these treatments were not completely effective in preventing the interaction of CSE with Impregum and PLF with Express XT.
Relationship between orthodontic treatment and gingival health: A retrospective study
Authors: Boke Fatma , Gazioglu Cagri , Akkaya Sevil , Akkaya Murat 
Published: July 2014

ABSTRACT
Objective: The aim of this retrospective study was to evaluate the relationship between orthodontic treatment and gingival health. Materials and Methods: A total of 251 patients among whom 177 were girls and 74 were boys, recruited from the records pool of the Department of Orthodontics, Faculty of Dentistry, University of Gazi, were included in the study. Patients’ treatments have been completed by postgraduate students during the period between 2006 and 2012. Patients’ folders were analyzed according to their age, treatment time, and the type of orthodontic treatment. Intra-oral photographs were analyzed, and the presence or absence of visible plaque, visible inflammation, and gingival recession were recorded, and incisor inclinations analyzed on lateral cephalometric films, before and after orthodontic treatment. Results: No statistically significant difference was found in patients treated with functional appliances before and after treatment. In patients treated with fixed orthodontic appliances, visible plaque, visible inflammation, and gingival recession showed significant increases after treatment, gingival biotype did not show any significant difference. Positive correlation was found between lower incisor position and gingival recession in patients treated with fixed appliance and extraction. And also cuspids were the teeth with the highest prevalence of gingival recession. Conclusion: Considering the relationship between orthodontic treatment and gingival health, cooperation among patients, orthodontists, and periodontists is important.
Comparison of anti-plaque efficacy between a low and high cost dentifrice: A short term randomized double-blind trial
Authors: Ganavadiya Rahul , Shekar B. R. Chandra , Goel Pankaj , Hongal Sudheer G. , Jain Manish , Gupta Ruchika 
Published: July 2014

ABSTRACT
Objective: The aim of this study was to compare the anti-plaque efficacy of a low and high cost commercially available tooth paste among 13-20 years old adolescents in a Residential Home, Bhopal, India. Materials and Methods: The study was randomized double-blind parallel clinical trial conducted in a Residential Home, Bhopal, India. A total of 65 patients with established dental plaque and gingivitis were randomly assigned to either low cost or high cost dentifrice group for 4 weeks. The plaque and gingival scores at baseline and post-intervention were assessed and compared. Statistical analysis was performed using paired t-test and the independent sample t-test. The statistical significance was fixed at 0.05. Results: Results indicated a significant reduction in plaque and gingival scores in both groups post-intervention compared with the baseline. Difference between the groups was not significant. No adverse events were reported and both the dentifrices were well-tolerated. Conclusion: Low cost dentifrice is equally effective to the high cost dentifrice in reducing plaque and gingival inflammation.
Comparison of manual toothbrushes with different bristle designs in terms of cleaning efficacy and potential role on gingival recession
Authors: Cifcibasi Emine , Koyuncuoglu Cenker Zeki , Baser Ulku , Bozacioglu Busra , Kasali Kamber , Cintan Serdar 
Published: July 2014

ABSTRACT
Objective: The aim was to compare the efficacy of plaque control and potential effects on gingival recession of the toothbrushes with angled and straight bristles. Materials and Methods: A total of 40 healthy dental students (25 females and 15 males; age range: 23-25 years) participated and two study groups were constituted. Participants were randomly distributed into two groups to use either angled or standard design manual tooth brushes with soft bristles. Oral hygiene indicators and soft tissue levels were monitored for 6 months. Plaque index, gingival index (GI), probing depth, clinical attachment level, and bleeding on probing were measured at six sites. Vertical recession (VR) and horizontal recession (HR) were also recorded. All measurements were repeated at 3 and 6 months. Results: Plaque scores were reduced significantly at 6 months compared to baseline in both groups (P < 0.05 and P < 0.005 in criss-cross and standard design brushes, respectively). Mean GI scores of the criss-cross design were reduced significantly at 6 months (P < 0.05). Inter-group comparisons revealed that gingival recession (GR) values were not statistically significant (P > 0.05) at baseline, 3 and 6 months suggesting no pronounced impact of bristle design in terms of GR (VR = 0.596, HR = 0.572; VR = 0.884, HR = 0.572; VR = 0.884, HR = 0.572 in the groups). Conclusions: Bristle design has little impact on plaque removal capacity of a toothbrush. Both designs are safe enough to prevent GR as long as soft bristle material is used.
Photodynamic therapy in combating the causative microorganisms from endodontic infections
Authors: de Oliveira Bruna Paloma , Aguiar Carlos Menezes , Câmara Andréa Cruz 
Published: July 2014

ABSTRACTPhotodynamic therapy (PDT) is presented as a promising antimicrobial therapy that can eliminate microorganisms present in endodontic infections. This treatment is based on the use of a nontoxic photosensitizing agent followed by irradiation of a resonant light source being capable of generating highly reactive species that are harmful to microorganisms. The purpose of this paper is to review the dental literature about the main factors that encompass the use of PDT combined with endodontic treatment for decontamination of the root canal system. A literature search was performed using the following index databases: PubMed, ISI Web of Knowledge and MedLine, between 2000 and 2014, looking for studies regarding antimicrobial action of PDT and its application to endodontic therapy. It was observed that despite numerous promising results, it is still necessary to establish different parameters so that PDT can be used with maximum effectiveness in eliminating microorganisms that cause endodontic infections.
A relação entre gênero, sexualidade e prostituição
Authors: Diniz Maria Ilidiana , Queiroz Fernanda Marques de 
Published: July 2014

O presente artigo resultou de uma pesquisa qualitativa realizada com prostitutas da cidade de Mossoró-RN. Apresenta algumas reflexões que perpassam o cotidiano da prostituição feminina, entendida como um fenômeno que legitima o sistema capitalista-patriarcal, envolvendo muitas mulheres em diferentes realidades, culturas, valores, condições socieconômicas, etc. A prostituição é vista e desligitimada socialmente por romper com padrões e modelos de gênero e sexualidade impostos às mulheres. Essa controversa problemática é permeada por idéias que associam a prostituição à promiscuidade, bem como a recusa da aceitação dos papéis pré-determinados à vivência da sexualidade feminina. Aborda ainda, de modo conciso, as principais perspectivas feministas acerca da prostituição, bem como a relação entre prostituição e prazer sob o enfoque das prostitutas.
ENTREVISTA CONCEDIDA A TÂNIA ROSA FERREIRA CASCAES POR DRA. LOURDES FERNÁNDEZ RIUS
Authors: Cascaes Tânia Rosa Ferreira 
Published: July 2014

De 18 a 21 de fevereiro de 2008 aconteceu em Havana, Cuba, o VII Congresso Iberoamericano de Ciência, Tecnología y Género o qual contou com a participação dascoordenadoras dos grupos de estudos Dra. Nádia T. Covolan do REGEDI – Relações de Gênero e Diversidade da UFPR - Setor Litoral, e Dra. Marília Gomes de Carvalho do GETEC– Grupo de Estudos de Gênero e Tecnologia da UTFPR - Curitiba. Além das coordenadoras participaram também sete membros destes grupos de estudo como palestrantes naquele tão importante Congresso. Dentre as organizadoras do Congresso, a Dra. Lourdes Fernandez Rius, Vicedecana da Facultad de Psicologia da Universidad de La Habana / CUBA, concedeu à profª. MSc. Tânia Rosa F. Cascaes, palestrante do Congresso e membro do GETEC, entrevista onde coloca em suas respostas, importantes reflexões, entre as quais, sobre o tema relações entre Ciência, Tecnologia e Gênero, tratado no evento. Com esta entrevista e com as diversas apresentações, pudemos observar e concluir vários pontos de convergência e divergência que permeiam os estudos de gênero entre Cuba e Brasil. Percebe-se nitidamente,pelos trabalhos apresentados e pela convivência acadêmica com tão renomada pesquisadora, que Cuba já possui um olhar e uma preocupação significativa com posições demarcadas nas pesquisas sobre o tema, que muito se assemelham aos nossos estudos e pesquisas, apesar dasdiferenças culturais. Contemplamos a seguir, os/as leitores/as do número Zero da Revista Divers@!, a entrevista em sua íntegra. Boa leitura!
TRABALHO E SINDICALISMO: RESIGNIFICANDO A CRISE
Authors: Bridi Maria Aparecida , Araújo Silvia Maria de 
Published: July 2014

As recentes transformações no mundo do trabalho vêm acompanhadas de uma leitura de crise generalizante e apocalíptica para o trabalho e as organizações dos trabalhadores, alastrando a idéia de crise, apresentada como uma auto-explicação universalista para o sindicalismo. Opresente artigo demonstra a importância de problematizar o conceito de crise e propõe que as crises precisam ser contextualizadas empiricamente e entendidas em sua natureza. A metodologia empregada tem como pressuposto que a realidade é ambivalente, complexa, multifacetada. Expõe as manifestações de crise no sindicalismo – expressa na fragmentação dos trabalhadores, na anunciada crise de identidade e na desmobilização frente às tentativas de desmonte da relação salarial.
Entrevista concedida a Tânia Rosa Ferreira Cascaes por Dra. Nádia T. Covolan
Authors: Cascaes Tânia Rosa Ferreira 
Published: July 2014

A entrevistada da vez é a Professora Nádia T. Covolan, graduada em Enfermagem e Filosofia, Mestre em Tecnologia e Doutora em Ciências Humanas, é docente da UFPR Setor Litoral e uma das fundadoras do REGEDI, a qual os leitores terão a oportunidade de conhecer na entrevista que segue.
O HIP HOP COMO APROPRIAÇÃO MULTICULTURAL: O CASO DAS RAPPERS E O PROJETO CEMINA
Authors: Ribeiro William De Goes 
Published: July 2014

O presente artigo discute sobre mulheres rappers no hip hop. O objetivo foi pensar como o multiculturalismo pode contribuir na construção da identidade de maneira positiva. O eixo da interrogação esteve no dualismo diferença-igualdade e na luta contra violência, preconceitos e estereótipos. A pesquisa indica potenciais para pensar a apropriação indébita da indústria cultural e para ver o hip hop como um espaço-tempo contextual. Concluo que é possível pensar um ângulo multicultural no hip hop. Nessa perspectiva, uma pista pode estar no papel das apropriações das mulheres rappers.
OFICINAS DE GÊNERO COM GRUPO DE ADOLESCENTES E MULHERES
Authors: Sebastião Angélica Carlos , Back Larissa Brand , Lisboa Teresa Kleba 
Published: July 2014

Esse artigo apresenta os resultados do Projeto de Extensão “Oficinas de Gênero com Grupo de Adolescentes e Mulheres” desenvolvido junto às comunidades do Mont Serrat e JardimZanelatto. De março à dezembro de 2008 foram trabalhadas quinzenalmente, Oficinas com diversas temáticas como “violência contra a mulher”, “corpo e sexualidade”, “modelos de família” e outras, através de dinâmicas que propiciaram a participação das adolescentes e mulheres com vistas à emancipação. A intervenção do Serviço Social junto aos Grupos mencionados proporcionou às acadêmicas, bolsistas de Extensão, sob orientação da coordenadora, vivenciar uma prática colocando o saber adquirido na Universidade a serviço das pessoas excluídas.
Editorial
Authors: Cardoso Alano Elsi Do Rocio 
Published: July 2014

A Revista Divers@ encerra o ano de 2011 com a edição do no 4, volume 1, que discute temáticas contemporâneas relacionadas a questões de gênero, educação e política. Mantém a sua perspectiva interdisciplinar, e o espaço aberto para reflexões de diversos matizes teóricos.
INTERVENÇÃO EM COMUNIDADES: CONSIDERAÇÕES A PARTIR DA EXPERIÊNCIA EM BLUMENAU/SC
Authors: Samagaia Jacqueline , Moura Reidy Rolim de , Santos Rubia dos 
Published: July 2014

Este artigo apresenta uma discussão acerca da experiência de intervenção em comunidade. Evidencia a problemática de moradia urbana e a realidade social de comunidades periféricas relatando a parceria existente entre universidade e comunidade no sentido de fortalecer grupos comunitários, organizados na trajetória de lutas por seus direitos, buscando o desenvolvimento da cidadania e autonomia. As situações evidenciadas junto aos moradores locais apontam paraa importância e necessidade de se discutir e refletir sobre as principais problemáticas urbanas vivenciadas nas cidades brasileiras com os próprios moradores, e como os anseios da população em estabelecer diálogo com poder público e repensar políticas públicas tornou-se mais rapidamentepossível a partir da capacitação e potencialização dos sujeitos e da própria comunidade, bem como das organizações comunitárias.