bluuebunny/crossref_metadata_2025_split huggingface dataset:
Clinical and Radiographic Evaluation of Regenerative Potential of GTR Membrane (Biomesh®) along with Alloplastic Bone Graft (Biograft®) in the Treatment of Periodontal Intrabony Defects
Authors: Mopur James Manohar , Devi T Rama , Ali Syed Muhammad , Srinivasa TS , Gopinath V , Salam AR Tariq 
Published: September 2013

ABSTRACT

Background and objectives
The primary goal of periodontal therapy is to restore the tooth supporting tissues lost due to periodontal disease. The aim of the present study was to compare the efficacy of combination of GTR membrane and alloplastc bone graft with open flap debridement (OFD) in treatment of periodontal intrabony defects.

Methods
Twenty paired intrabony defects were surgically treated using split mouth design. The defects were randomly assigned to treatment with OFD, GTR membrane + bone graft (test) or OFD alone (control). The clinical efficacy of two treatment modalities was evaluated at 6 months postoperatively by clinical, radiographical parameters. The measurements included probing pocket depth (PD), clinical attachment level (CAL), gingival recession (GR), bone fill (BF), bone density (BD).

Results
The mean reduction in PD at 0 to 6 months was 3.20 ± 0.82 mm and CAL gain of 3.10 ± 1.51 mm occurred in the GTR membrane + bone graft (test) group; corresponding values for OFD (control) were 2.10 ± 0.63 mm and 1.90 ± 0.57 mm. Similar pattern of improvement was observed when radiographically postoperative evaluation was made. All improvement in different parameters was statistically significant (p < 0.01).

Conclusion
Treatment with a combination of collagen membrane and bone graft led to a significantly more favorable clinical outcome in intrabony defects as compared to open flap debridement alone.

How to cite this article
Mopur JM, Devi TR, Ali SM, Srinivasa TS, Gopinath V, Salam ART. Clinical and Radiographic Evaluation of Regenerative Potential of GTR Membrane (Biomesh®) along with Alloplastic Bone Graft (Biograft®) in the Treatment of Periodontal Intrabony Defects. J Contemp Dent Pract 2013;14(3):434-439.
Shaping Potential of Manual NiTi K-File and Rotary ProTaper and Analyzing the Final Outcome of Shaped Canals using CT
Authors: Dhingra Anil , Kakar Surbhi 
Published: September 2013

ABSTRACT

Aim
To assess and compare the shaping potential of manual NiTi K-files and Rotary ProTaper instruments in narrow canals using CT.

Objective
To assess the shaping potential of manual NiTi K-files and Rotary ProTaper and analyzing the final outcome of shaped canals using CT and determining different variables, like
• Working time
• Change in volume
• Change in cross-sectional area.

Materials and methods
From a pool of fifty freshly extracted permanent maxillary molars (1st and 2nd), 30 were selected with curvatures (20 to 40°) (Schneider 1971). Tissue fragments and calcified debries were removed from the teeth by scaling. The teeth were then stored in normal saline until used.
All the mesiobuccal canals were scanned by CT to obtain preinstrumented images. Teeth were scaled and stored in normal saline. This study was divided in two groups with 15 samples each.

Group I (ProTaper Rotary)
Canals were instrumented with Protaper Rotary instruments using crown down technique according to manufacturer's instructions.

Group II (NiTi K-file)
Were instrumented by NiTi K-files using step back technique with a quarter turn/pull motion.

Evaluations of working time
Comparative evaluations of working time was done for both the experimental groups.

CT analysis and measurements
The samples were analyzed and evaluated for:
• Postinstrumentation change in volume.
• Postinstrumentation change in cross-sections area.

Result
From the observations and statistical analysis carried out in this study, it was found that:
There was a statistically significant difference between all the parameters judged for the present study that is:
1. Instrumentation with ProTaper Rotary system took significantly less time than instrumentation with manual NiTi K-file.
2. Change in the canal volume following instrumentation with ProTaper Rotary was significantly greater than that produced by manual NITi K-file.
3. a. Change in cross-section area at 2 and 3 mm from the apex was significantly greater with manual NiTi K-file as compared to ProTaper Rotary.
b. Change in cross sections at 4.5, 6 and 7.5 mm from the apex with ProTaper Rotary was significantly greater than that produced by manual NITi K-file.

Conclusion
This clearly establishes that there is a drastic difference in the shaping ability of manual and Rotary NiTi instruments used with step back and crown down technique respectively with the rotary instrumentation being faster and producing greater changes in the canal anatomy.

How to cite this article
Kakar S, Dhingra A, Sharma H. Shaping Potential of Manual NiTi K-File and Rotary ProTaper and Analyzing the Final Outcome of Shaped Canals using CT. J Contemp Dent Pract 2013;14(3):451-455.
Fluoride Release from Glass Ionomer Cements: Effect of Temperature, Time Interval and Storage Condition
Authors: Kotian Ravindra , Madhyastha Prashanthi , Pai Vivekananda , Khader AMA 
Published: September 2013

ABSTRACTObjectivesFluoride plays a pivotal role in oral health promotion and is the corner stone in the prevention of dental caries. The purpose of this study was to evaluate the effects of temperature, time interval and storage conditions on fluoride release by three commercial glass ionomer cements (GIC).Materials and MethodsThree commercial glass ionomers: GC Gold Label Universal Restorative (conventional), GC Gold Label Light-Cured Universal Restorative and GC Fuji VII (GC Corporation, Tokyo, Japan) were used to investigate fluoride release. The 6 × 2 mm disk-shaped specimens prepared from each material were immersed in distilled water or artificial saliva at temperatures 4°C, 37°C or 55°C. The amount of fluoride release from these specimens was studied for the period of 1, 7, 14 and 28 days with the help of fluoride selective ion electrode.ResultsThe amount of fluoride release was significantly (p < 0.001) high in distilled water when compared to artificial saliva in all the three types of GIC studied. The highest level of fluoride release was observed on the first day of the study, followed by days 7 and 14, with least release on days 28. It was also observed that at 55°C, the amount of fluoride release was significantly (p < 0.001) high in all three GIC. However, there was no significant difference among the three GIC studied.ConclusionThe amount of fluoride release depends on temperature, time interval and storage condition. The result from the study concludes that GIC in the oral cavity serve as fluoride reservoir and contribute a low fluoride release in oral fluids.Clinical significanceThe clinical use of GIC that release fluoride is relevant mainly in patients at risk of or with caries activity, thereby preventing initiation of secondary caries and failure of restorations. It may also be important in developing regimes for improving the delivery of tropical fluoride products. This study would be helpful to make some considerations about clinical indication and longevity of restorative materials studied.How to cite this articleMadhyastha P, Kotian R, Pai V, Khader AMA. Fluoride Release from Glass Ionomer Cements: Effect of Temperature, Time Interval and Storage Condition. J Contemp Dent 2013;3(2):68-73.
Socket Preservation at Molar Site using Platelet Rich Fibrin and Bioceramics for Implant Site Development
Authors: Pathak Tushar Sakal , Gupta Himani Swatantrakumar , Chowdhary Kamedh Yashwant , Kini Vineet Vaman , Mistry Abhishek 
Published: September 2013

ABSTRACTBackgroundThe extraction socket preservation technique conserves the alveolar architecture and prevents hard and soft tissue collapse that minimizes the necessity for future augmentation procedures. Also, considerable interest has recently emerged over the potential benefits of using platelet rich fibrin (PRF), a highly concentrated form of platelets power packed with growth factors encased in a leukocyte rich matrix that enhances osteogenic differentiation and bone repair. This article describes the currently improved technique utilizing alloplasts with autologous PRF to be implemented for preserving a future implant site.Materials and MethodsFollowing the atraumatic extraction of the periodontally compromised tooth, the socket bony walls were debrided and decorticated to facilitate regional acceleratory phenomenon. Venous blood was drawn from the antecubital fossa of the patient and was centrifuged according to Choukroun's method to yield autologous PRF that was minced into uniformly sized bits. Except for 2 to 3 mm of the coronal aspect of the socket, the rest was filled with particles of a slowly resorbing bone substitute material mixed homogeneously with minced PRF. A collagen membrane was used to seal the coronal end of the socket and was stabilized using 3-0 black braided silk sutures.ResultsClinically and radiographically satisfactory and successful regeneration of the deficient ridge's hard and soft tissues was demonstrated after 6 months post therapy.ConclusionSocket preservation surgery utilizing bioceramics and PRF is an effective procedure for posterior socket preservation coupled with rapid healing and aids in providing sound bone quality for successful implant placement.How to cite this articleGupta HS, Chowdhary KY, Pathak TS, Kini VV, Pereira R, Mistry A. Socket Preservation at Molar Site using Platelet Rich Fibrin and Bioceramics for Implant Site Development. J Contemp Dent 2013;3(2):102-107.
Focal Cemento-osseous Dysplasia
Authors: Kumar Shwetha , Kadam Rahul 
Published: September 2013

ABSTRACTFocal cemento-osseous dysplasia (FCOD) is a benign fibroosseous condition that can be seen in dentulous and edentulous patients. It is an asymptomatic lesion and needs no treatment; however, follow-up is essential due to the possibility that it can progress to a condition called florid cemento-osseous dysplasia. Clinically, the lesion resembles periapical pathosis of odontogenic origin. FCOD is an asymptomatic lesion and occurs in the periapical area of teeth with vital pulps or in regions of extractions. The lesion is detected only on radiographic examination varying from completely radiolucent to densely radiopaque. The histopathologic appearance consists of trabeculae of bone and cementum like material present within a vascular fibrous stroma. Presented here is a case of FCOD in the mandible that occurred in the periapical region of a vital tooth.How to cite this articleKadam R, Patel S, Pathak J, Swain N, Kumar S. Focal Cemento-osseous Dysplasia. J Contemp Dent 2013;3(2):112-115.
Réflexions méthodologiques sur l’étude des représentations sociales : rétrospectives de recherches antérieures
Authors: Grenon Vincent , Larose François , Carignan Isabelle 
Published: September 2013

Les représentations sociales font l’objet d’études en sciences humaines et sociales depuis plus de cinquante ans. En fonction de la théorie du noyau central, la représentation sociale peut être définie en tant qu’organisation structurée et hiérarchisée selon deux systèmes : un central et un périphérique. Au fil du temps et à partir du discours des répondants, des travaux réalisés par des chercheurs de l’Université de Sherbrooke ont permis, par l’entremise du recours à l’analyse lexicométrique et à la statistique textuelle, d’identifier des éléments du noyau central ainsi que des éléments périphériques dans les différentes recherches. Cette contribution vise à mettre en perspective nos orientations méthodologiques, à revenir sur la nécessité de recourir à des approches pluriméthodologiques et à proposer des modèles alternatifs pour les échantillons plus faibles.
Capture–recapture estimates of the undercount of workplace injuries and illnesses: Sensitivity analysis
Authors: Boden Leslie I. 
Published: September 2013

AbstractBackgroundIn recent years, capture–recapture methods have been applied to state Survey of Occupational Injuries and Illnesses (SOII) and workers' compensation data, but uncertainties arise because of population differences between the two sources, likely source dependence, and concerns about the accuracy of case linkage.MethodsWe linked SOII and workers' compensation records for California and used capture–recapture methods to estimate the proportion of injuries and illnesses involving at least 4 days away from work captured by each source. We then did a sensitivity analysis.ResultsAssuming source independence, estimates of the proportion of injuries and illnesses involving at least 4 days away from work captured by the SOII varied from 42.4% to 49.0%, while workers' compensation estimates were between 76.9% and 77.6%. Re‐estimating SOII capture rates assuming source dependence (OR = 3) reduced capture estimates substantially.ConclusionsEstimated capture rates remained low after changing several of the underlying assumptions. Positive source dependence had the greatest impact. Am. J. Ind. Med. 57:1090–1099, 2014. © 2013 Wiley Periodicals, Inc.
A Comparative Study on Environment Credit Risk Management of Commercial Banks in the Asia‐Pacific Region
Authors: Mengze Hu , Wei Li 
Published: September 2013

AbstractEnvironmental credit risk management (ECRM) is significant in the reduction of environmental risks for banks, the expansion of economic instruments for governmental environmental management and the promotion of green growth in the Asia‐Pacific region. In this paper, we reconstructed an evaluation criterion with 32 indicators for ECRM performance of banks, and selected 120 sample banks from 12 countries in this region for a comparative study. We conducted a gap analysis among banks with systematic ECRM and those with preliminary ECRM, suggesting that five indicators need to be improved by the former and 12 indicators caused gaps of the latter. We found banks in different countries with different ECRM performance levels: the Canadian, US and Japanese banks performed the best; the banks from Australia, Republic of Korea, China and Thailand had modest performance and the banks from the other five countries had a low level of performance. The influential factors of policy, voluntary code and green income incentive for banks' ECRM performance are discussed with the results of a correspondence analysis graph and policy practice in several representative countries. Copyright © 2013 John Wiley & Sons, Ltd and ERP Environment.
Business Strategy and Firm Reorganization: Role of Changing Environmental Standards, Sustainable Business Initiatives and Global Market Conditions
Authors: Ghosal Vivek 
Published: September 2013

AbstractMy study is framed against the backdrop of increasingly stringent environmental demands on the pulp and paper industry to reduce water and air pollution, and the changing global market conditions. I first present an observation‐based analysis conducted by visiting selected paper mills in Finland, the US, Germany and Sweden. Interesting differences and similarities emerge. Some of the observed differences lie in their focus on achieving incremental efficiency gains from better management of production processes, inventories, supply‐chain, product distribution and timing of modernization investments such as information technology. In the second part of the paper I present evidence on firms' productivity paths and the heterogeneity in productivity among relatively similar firms, and selected evidence of firms' investments in specific areas and how these affected productivity. My findings have implications for organizational behavior and business strategies employed by firms to improve their performance and productivity under changing environmental standards and market conditions. Copyright © 2013 John Wiley & Sons, Ltd and ERP Environment
Synthesis, Properties, and Remarkable 2 D Self‐Assembly at the Liquid/Solid Interface of a Series of Triskele‐Shaped 5,11,17‐Triazatrinaphthylenes (TrisK)
Authors: Bertrand Hélène , Guillot Régis , Teulade‐Fichou Marie‐Paule , Fichou Denis 
Published: September 2013

AbstractA series of 5,11,17‐triazatrinaphthylene (TrisK) derivatives, large disk‐like π‐conjugated molecules with C3h symmetry, has been synthesised by following an optimised synthetic pathway. The synthesis was performed by a four‐step protocol based on the N‐arylation of 1,3,5‐tribromobenzene with appropriate anthranilate derivatives. This strategy permits the generation of either chlorinated (TrisK‐Cl‐OCn) or non‐chlorinated (TrisK‐H‐OCn) alkoxy‐substituted derivatives (OCnH2n+1 with n=3, 10, 12 and 16), thus providing additional versatility in the control of the structure–property relationships. The electronic properties of the various TrisK compounds have been characterised in solution by absorption and emission spectroscopies as well as cyclic voltammetry. The crystal structure of 2,8,14‐propyloxy‐5,11,17‐triazatrinaphthylene TrisK‐H‐OC3 has been determined by X‐ray diffraction analysis, which revealed the presence of stabilising weak intermolecular H bonds. Scanning tunnelling microscopy (STM) at the liquid/solid interface has revealed the remarkable 2D self‐assembling properties of the TrisK compounds. In particular, it has shown that TrisK‐H‐OC12 forms three concomitant self‐organised 2D phases with different row‐packing arrangements. This 2D polymorphism arises from slow ordering due to the presence of three long dodecyloxy chains on the molecular backbone. Individual molecules can be imaged with spectacular intramolecular resolution, thus providing the possibility of correlating the STM features with the calculated charge density distribution.
Crack‐Free Periodic Porous Thin Films Assisted by Plasma Irradiation at Low Temperature and Their Enhanced Gas‐Sensing Performance
Authors: Dai Zhengfei , Jia Lichao , Duan Guotao , Li Yue , Zhang Hongwen , Wang Jingjing , Hu Jinlian , Cai Weiping 
Published: September 2013

AbstractHomogenous thin films are preferable for high‐performance gas sensors because of their remarkable reproducibility and long‐term stability. In this work, a low‐temperature fabrication route is presented to prepare crack‐free and homogenous metal oxide periodic porous thin films by oxygen plasma irradiation instead of high temperature annealing by using a sacrificial colloidal template. Rutile SnO2 is taken as an example to demonstrate the validity of this route. The crack‐free and homogenous porous thin films are successfully synthesized on the substrates in situ with electrodes. The SnO2 porous thin film obtained by plasma irradiation is rich in surface OH groups and hence superhydrophilic. It exhibits a more homogenous structure and lower resistance than porous films generated by annealing. More importantly, such thin films display higher sensitivity, a lower detection threshold (100 ppb to acetone) and better durability than those that have been directly annealed, resulting in enhanced gas‐sensing performance. The presented method could be applied to synthesize other metal oxide homogenous thin films and to fabricate gas‐sensing devices with high performances.
The mediating role of employee strategic alignment in the relationship between rational strategic planning and firm performance: A European study
Authors: Ouakouak Mohamed Laid , Ouedraogo Noufou 
Published: September 2013

AbstractPrevious empirical studies examining the direct relationship between rational strategic planning and firm performance have produced contradictory results. Therefore, in order to better understand the nature of this relationship, it is important to take into consideration the role of some mediating and moderating variables. We take into account this aspect by testing the mediating role of employee strategic alignment in the rational strategic planning–firm performance relationship. Based on a quantitative empirical study conducted among 372 European firms, we find that employee strategic alignment is a full mediator in this relationship. We then discuss the theoretical contributions and practical implications of our study. Copyright © 2013 ASAC. Published by John Wiley & Sons, Ltd.
Superfluorescent Squaraine with Efficient Two‐Photon Absorption and High Photostability
Authors: Belfield Kevin D. , Bondar Mykhailo V. , Haniff Hafeez S. , Mikhailov Ivan A. , Luchita Gheorghe , Przhonska Olga V. 
Published: September 2013

AbstractThe synthesis, linear photophysical, two‐photon absorption (2PA), femtosecond transient absorption, and superfluorescence properties of a new symmetrical squaraine derivative (1) are reported. Steady‐state linear spectral and photochemical properties, fluorescence lifetimes, and excitation anisotropy of 1 were investigated in various organic solvents. High fluorescence quantum yields (≈0.7) and very high photostability (photodecomposition quantum yields ≈10−6–10−8) were observed. An open‐aperture Z‐scan method was used to obtain 2PA spectra of 1 over a broad spectral range (maximum 2PA cross section ≈1000 GM). Excited‐state absorption (ESA) and gain was observed by femtosecond transient absorption spectroscopy, in which both reached a maximum at approximately 500 fs. Squaraine 1 exhibits efficient superfluorescence. The quantum chemical study of 1 revealed the simulated vibronic nature of the 1PA and 2PA spectra were in good agreement with experimental data; this may provide the ability to predict potential advanced photonic materials.
Initial Psychometric Evaluation of the Moral Injury Questionnaire—Military Version
Authors: Currier Joseph M. , Holland Jason M. , Drescher Kent , Foy David 
Published: September 2013

Moral injury is an emerging construct related to negative consequences associated with war‐zone stressors that transgress military veterans' deeply held values/beliefs. Given the newness of the construct, there is a need for instrumentation that might assess morally injurious experiences (MIEs) in this population. Drawing on a community sample of 131 Iraq and/or Afghanistan Veterans and clinical sample of 82 returning Veterans, we conducted an initial psychometric evaluation of the newly developed Moral Injury Questionnaire—Military version (MIQ‐M)—a 20‐item self‐report measure for assessing MIEs. Possibly due to low rates of reporting, an item assessing sexual trauma did not yield favourable psychometric properties and was excluded from analyses. Veterans in the clinical sample endorsed significantly higher scores across MIQ‐M items. Factor analytic results for the final 19 items supported a unidimensional structure, and convergent validity analyses revealed that higher scores (indicative of more MIEs) were correlated with greater general combat exposure, impairments in work/social functioning, posttraumatic stress and depression in the community sample. In addition, when controlling for demographics, deployment‐related factors and exposure to life threat stressors associated with combat, tests of incremental validity indicated that MIQ‐M scores were also uniquely linked with suicide risk and other mental health outcomes. These findings provide preliminary evidence for the validity of the MIQ‐M and support the applicability of this measure for further research and clinical work with Veterans. Copyright © 2013 John Wiley & Sons, Ltd.Key Practitioner Message

Military service can confront service members with experiences that undermine their core sense of humanity and violate global values and beliefs. These types of experiences increase the risk for posttraumatic maladjustment in this population, even when accounting for rates of exposure to life threat traumas.
Moral injury is an emerging construct to more fully capture the many possible psychological, ethical, and spiritual/existential challenges among persons who served in modern wars and other trauma‐exposed professional groups. There is currently a need for psychometrically sound instrumentation for assessing morally injurious experiences (MIEs).
The Moral Injury Questionnaire – Military Version (MIQ-M) was developed to provide a tool for assessing possible MIEs among military populations. This study provides preliminary evidence of the validity – including factorial, concurrent, and incremental – and clinical utility of the MIQ‐M for further applications in clinical and research contexts.