bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison of Ability of Platelet-rich Fibrin vs CollaPlug in maintaining the Buccal Bone Height of Sockets following Extractions in 20 Patients
Authors: Singh Madhumati , Madhan G 
Published: March 2017

ABSTRACTIntroductionThe preservation of bone volume immediately after tooth removal is necessary to optimize the success of implant placement in terms of esthetics and function. The objectives of this study were to compare the ability of Choukroun's platelet-rich fibrin (PRF) versus CollaPlug (Zimmer) in maintaining the buccal bone height of sockets following extractions in patients.Materials and methodsTwenty patients who required tooth extraction and implant placement were enrolled in this study. The patients were randomly divided into two groups. They are group I PRF group and group II CollaPlug group. The vertical buccal crestal bone heights were measured immediately after extraction and 4 months postextraction and implants were placed.ResultsThe buccal crestal bone level in the CollaPlug group had a baseline mean of 4.67 ± 0.54 and a postmean of 6.98 ± 0.60, whereas in the PRF group baseline mean was 5.43 ± 0.47 and postmean was 6.93 ± 0.55. The bone resorption was found in both the groups (2.31 mm for CollaPlug and 1.5 mm for PRF), in agreement with previous studies. However, there was increased bone loss in CollaPlug group compared with PRF group, which was found statistically significant.ConclusionIn conclusion, within the limits of the present study, the two tested socket preservation materials seem to be effective in the treatment of extraction sockets, even though the design of the study did not allow us to evaluate to what extent the clinical improvement could be attributed to the PRFper se, since a negative control was not included in this investigation. However, preparation of PRF is not very cumbersome and inexpensive, which makes it a better socket preservation material than CollaPlug.How to cite this articleMadhan G, Singh M. Comparison of Ability of Platelet-rich Fibrin vs CollaPlug in maintaining the Buccal Bone Height of Sockets following Extractions in 20 Patients. J Health Sci Res 2017;8(1):1-6.
Comparative Evaluation of the Effect of Two Desensitizing Dentifrices containing Novamin Technology and Pro-Argin Technology following Scaling and Root Planing
Authors: Vazhakkat, Pooja R , Shobha KS 
Published: March 2017

ABSTRACTAimTo compare the desensitizing efficacy of two commercially available dentifrices, one containing Novamin technology (calcium sodium phosphosilicate, a bioactive glass) and the other containing Pro-Argin technology (arginine and calcium carbonate) when applied after scaling and root planing.Materials and methodsAbout 30 subjects having at least two sensitive teeth (total 60 sites) after scaling and root planing were included in this study and randomly divided into two groups, each containing 15 patients: Group I received Pro-Argin technology (arginine and calcium carbonate) and group II received Novamin technology (calcium sodium phosphosilicate, a bioactive glass) containing desensitizing toothpaste. The sensitive teeth were selected on the basis of Schiff cold air sensitivity scale (SCASS) with an air blast hypersensitivity score of 2 or 3 and cold water test with visual analog scale (VAS) score of 4 to 10 responses. The subjects’ response was recorded at baseline (i.e., immediately after treatment) and after 1, 2, and 4 weeks respectively, using the SCASS and VAS scale.ResultsUsing Mann–Whitney test, we found no statistically significant differences in the score between the two desensitizing toothpastes. But, there was a statistically significant difference between the baseline and follow-up scores done consecutively for individual toothpastes.ConclusionTherefore, within the limitations of the study, we found no statistically significant difference in the efficacy of the two desensitizing toothpastes.How to cite this articleVazhakkat PR, Shobha KS. Comparative Evaluation of the Effect of Two Desensitizing Dentifrices containing Novamin Technology and Pro-Argin Technology following Scaling and Root Planing. J Health Sci Res 2017;8(1):7-14.
An in vitro Study to evaluate the Effects of Various Polymerizing Conditions on the Flexural Strength of Autopolymerizing Resins
Authors: Singh, Sanjeev , Hussain, Abid Z , Thombare, RU , Motwani, BK , Singh, Shweta 
Published: March 2017

ABSTRACT

Aim
To investigate the effect of variation in temperature and time intervals on the flexural strength of two brands of autopolymerizing resins polymerized at constant pressure.

Materials and methods
Two autopolymerizing resins RR Cold Cure resin (DPI) and RR-Rapid Repair Powder (Dentsply) were used. A total of 20 samples were fabricated for each group. Samples were polymerized at temperature ranges of 40°, 50°, 60°, and 70°C and at time intervals of 5, 10, and 15 minutes in the customized curing pot, maintaining pressure of 30 psi.

Results
Flexural strength was verified using universal testing machine using three-point bending test and was then compared with all samples and also with the samples cured in open air (control group). The samples cured at higher temperature, i.e., 60° and 70°C, have shown increased strength than those at 40° and 50°C as well as control group. Time interval of 10 minutes is considered sufficient to increase the strength of the resin, as per the results of this study.

Conclusion
The samples cured under varied condition of time and temperature but under constant pressure showed increased strength than those cured in open air.

Clinical significance
The effect of pressure and temperature has been demonstrated, which could be utilized for enhancing the durability of the prosthesis fabricated from autopolymerized resins.

How to cite this article
Singh S, Hussain AZ, Thombare RU, Motwani BK, Singh S, Mangalekar SB. An in vitro Study to evaluate the Effects of Various Polymerizing Conditions on the Flexural Strength of Autopolymerizing Resins. J Health Sci Res 2017;8(1):15-19.
Assessment of Efficacy of Different Teaching Methods of Tooth Brushing on Oral Hygiene Status in Adults
Authors: Chatterjee Anirban , Asif, Mohammed , KS, Shobha 
Published: March 2017

ABSTRACT

Introduction
Tooth brushing plays a vital role in effective plaque control, which depends on the effectiveness of the particular method and the ease with which the procedure is carried out. Hence, the aim of this study was to assess the effect of different teaching methods of tooth brushing on oral hygiene status in adults.

Materials and methods
Eighty subjects were divided into four groups, each with 20 and assigned to different training methods. Twenty subjects were in control group and the rest in the experimental group. Each experimental group was further subdivided into two groups, namely reinforcers and nonreinforcers, with 10 subjects in each group. The plaque scores of these subjects were measured before and 1 week after the training sessions. The data analysis was carried out using the Statistical Package for the Social Sciences (SPSS) 20.0 and two-way analysis of variance (ANOVA).

Results
There was significant reduction in the plaque scores due to different training methods (f = 12.218, p < 0.05). Maximum reduction was seen in the instruction on cast method. There was significant difference in the plaque scores in the reinforcers and nonreinforcers (f = 4.897, p < 0.05). A small survey conducted among participants revealed that individual as a model was an easy method to learn brushing.

Conclusion
The instruction on cast method was effective in reducing the plaque scores compared with the other methods.

How to cite this article
Asif M, Shobha KS, Chatterjee A. Assessment of Efficacy of Different Teaching Methods of Tooth Brushing on Oral Hygiene Status in Adults. J Health Sci Res 2017;8(1):25-30.
A Case of Hand-Foot-Mouth Disease observed during Routine Dental Checkup in an Immunocompetent Healthy Adult Patient
Authors: Devadoss, Poorna , Ramesh, Skanda , Christopher, Pradeep , Velusamy Anbu 
Published: March 2017

ABSTRACT
Signs of oral lesions are one of the initial indications for many major diseases. As we come across different lesions during routine dental checkups, we should be aware about the diseases associated with those lesions. A 47-year-old immunocompetent adult patient reported with small erythematous lesions in the hard palate and small ulcers in the tonsillar pillars and right buccal mucosa with mild pyrexia of 37.8°C. Maculopapular lesions were found on the palms and soles. He was diagnosed with hand-foot-mouth disease, which is caused by the following viruses: Enterovirus-71, Coxsackie Virus (CV)-16, CV-A6, and CV-A10. The severity of this condition leads to meningitis, paralytic polio, and onychomadesis (falling of nails).

How to cite this article
Devadoss P, Ramesh S, Christopher P, Velusamy A. A Case of Hand-Foot-Mouth Disease observed during Routine Dental Checkup in an Immunocompetent Healthy Adult Patient. J Health Sci Res 2017;8(1):42-45.
Removal of Large Foreign Bodies Made of Thermoplastic Material from the Eye
Authors: Stolyarenko Georgiy , Doroshenko Dzhasser , Salakhutdinov Victor , Smetanin Yuri 
Published: March 2017

Purpose To present the results of research aimed at developing a new method of minimally invasive removal of an intraocular foreign body (IOFB) from the eye cavity. Methods The main idea was to fix the IOFB onto the edge of a laser probe, which is transsclerally injected into the eye. After that, the IOFB is fixed at the end of the laser probe and removed transpupillary from the eye through an incision in the cornea. In order to fix the IOFB on the laser probe edge, this edge should be brought closely to the IOFB surface. The material of the IOFB should be locally fused using the laser emission. During this process, the probe edge should be submerged into the liquid melt. After laser emission is turned off, the material around the probe is hardened and the IOFB is hardly fixed on the laser probe edge. Results and Conclusions The main laser emission parameters and their influence on the eye tissue were investigated within a thermodynamic model. It is shown that for IOFB made from polyethylene terephthalate the optimal laser power is close to 2 W, the rate of rise of light energy is more than 10 ms, and the wavelength is approximately 0.905 μm. With these parameters (taking into account multiple scattering effects), the light impact on the retina will not exceed 100 mW/cm2, which is not dangerous for eye tissue. Efficiency is supported by clinical testing. The method was used for intraocular extraction of an Airsoft ball bearing (6 mm sphere of polyethylene terephthalate). The overall extraction time was approximately 4 minutes.
Polymorphisms and Mutations in GSTP1, RAD51, XRCC1 and XRCC3 Genes in Breast Cancer Patients
Authors: Zoubi Mazhar Salim Al , Zavaglia Katia , Mazanti Chiara , Hamad Mohammad Al , Batayneh Khalid Al , Aljabali Alaa A.A. , Bevilacqua Generoso 
Published: March 2017

Background Genotoxic factors, including ionizing radiation and oxidative stress, are associated with genomic instability and development of breast cancer (BC). The homologous recombination DNA repair (HRR) pathway, base excision repair (BER) mechanism, and antioxidative enzymes are required as defense mechanisms against these DNA damaging agents. GSTP1, XRCC1, XRCC3 and RAD51 proteins are essential components of antioxidation, BER and HRR of DNA, respectively. Deficiencies in BER, HRR and antioxidation pathways are involved in the progression of cancer. Methods Genomic DNA was extracted from formalin-fixed, paraffin-embedded tissue and blood samples of BC patients of an Italian population. Genomic DNA was also extracted from blood specimens of a control group. DNA sequencing was performed for six single-nucleotide polymorphisms (SNPs) in the GSTP1, RAD51, XRCC1 and XRCC3 genes in BC patients and the control group. Results Two variants in the 5′-UTR of the XRCC3 (rs1799794 A/G) and RAD51 (rs1801321) genes showed a significant association with susceptibility to BC (OR = 4.125; 95% CI 1.057-16.102; p = 0.03 and OR = 2.04; 95% CI 0.4925-8.449; p = 0.007, respectively). Additionally, we reported 2 mutations in intron 7 of the XRCC3 gene, CTdel (rs543072564) and A/G (rs369703243). Conclusions Our results underscored the existence of an association between XRCC3-5′-UTR-A/G (rs1799794) and RAD51-5′-UTR G172T (rs1801321) genotypes and BC risk in an Italian population. The presence of mutations in the intronic region of the XRCC3 gene highlights the importance of more sequence screening of DNA repair genes for possible genetic penetrance in BC.
Study of Mesenchymal Stem Cells Cultured on a Poly(Lactic-co-Glycolic Acid) Scaffold Containing Simvastatin for Bone Healing
Authors: Mendes Junior Dario , Domingues Juliana A. , Hausen Moema A. , Cattani Silvia M.M. , Aragones Aguedo , Oliveira Alexandre L.R. , Inácio Rodrigo F. , Barbo Maria L.P. , Duek Eliana A.R. 
Published: March 2017

Background Tissue engineering is a promising alternative for the development of bone substitutes; for this purpose, three things are necessary: stem cells, a scaffold to allow tissue growth and factors that induce tissue regeneration. Methods To congregate such efforts, we used the bioresorbable and biocompatible polymer poly(lactic-co-glycolic acid) (PLGA) as scaffold. For the osteoinductive factor, we used simvastatin (SIM), a drug with a pleiotropic effect on bone growth. Mesenchymal stem cells (MSCs) were cultured in PLGA containing SIM, and the bone substitute of PLGA/SIM/MSC was grafted into critical defects of rat calvaria. Results The in vitro results showed that SIM directly interfered with the proliferation of MSC promoting cell death, while in the pure PLGA scaffold the MSC grew continuously. Scaffolds were implanted in the calvaria of rats and separated into groups: control (empty defect), PLGA pure, PLGA/SIM, PLGA/MSC and PLGA/SIM/MSC. The increase in bone growth was higher in the PLGA/SIM group. Conclusions We observed no improvement in the growth of bone tissue after implantation of the PLGA/SIM/MSC scaffold. As compared with in vitro results, our main hypothesis is that the microarchitecture of PLGA associated with low SIM release would have created an in vivo microenvironment of concentrated SIM that might have induced MSC death. However, our findings indicate that once implanted, both PLGA/SIM and PLGA/MSC contributed to bone formation. We suggest that strategies to maintain the viability of MSCs after cultivation in PLGA/SIM will contribute to improvement of bone regeneration.
Perioperative HDR Brachytherapy for Reirradiation in Head and Neck Recurrences: Single-institution Experience and Systematic Review
Authors: Tagliaferri Luca , Bussu Francesco , Fionda Bruno , Catucci Francesco , Rigante Mario , Gambacorta Maria Antonietta , Autorino Rosa , Mattiucci Gian Carlo , Miccichè Francesco , Placidi Elisa , Balducci Mario , Galli Jacopo , Paludetti Gaetano , Kovacs György , Valentini Vincenzo 
Published: March 2017

Aim The aim of our study was to evaluate the outcomes of patients reirradiated with high-dose-rate (HDR) intensity-modulated brachytherapy (IMBT) for recurrent head and neck cancer and to perform a systematic review of the literature. Materials and Methods Patients treated with prior radiation doses >65 Gy were considered. After resection of macroscopic disease, catheters were fixed to the tumor bed. The total dose was 30 Gy in 12 fractions of 2.5 Gy twice daily for 5 days a week. A systematic literature search was conducted through several electronic databases including Medline/PubMed, Scopus, Embase and the Cochrane library. Results Seventeen patients were included; median overall survival was 19 months with a median local control interval of 15 months. Median follow-up was 36 months. Seven papers were considered for the review. Conclusions IMBT could play an important role in the retreatment of recurrent head and neck cancer.
Evaluation of late cerebral vascular complications in cranially irradiated pediatric cancer patients with magnetic resonance angiography
Authors: Kupeli Serhan , Bicakci Kenan , Sezgin Gulay , Bayram Ibrahim 
Published: March 2017

Background: We aimed to establish the early diagnosis of cerebral vascular complications by using cerebral magnetic resonance angiography (MRA) in patients who were treated with cranial RT in childhood as part of their cancer treatment. Procedure: Patients who had received cranial RT before the age of 18 and had been in remission for at least 1 year were enrolled in the study. A data form including demographic and clinical characteristics and findings of cerebral MRA was filled in for each patient. Results: Cerebral MRA examination was performed between November 2013 and October 2015 in 53 patients who met the inclusion criteria. Abnormalities were found in 7 patients (13.2%). All patients were asymptomatic at the time of examination. There was a significant difference between patients in the abnormality-positive and abnormality-negative groups related to cranial radiation dose (p = 0.013) and age at the time of examination (p = 0.015) in univariate analysis. In multivariate analysis, cranial radiation dose was found to have an impact on developing cerebral vascular abnormalities (p = 0.045). Conclusions: Cerebral MRA is a noninvasive method of follow-up for late cerebral vascular complications in surviving pediatric oncology patients who were treated with cranial RT as part of their cancer treatment.
Possible pathways and tensions in the food and water nexus
Authors: Grafton R. Quentin , Williams John , Jiang Qiang 
Published: March 2017

Abstract“Bottom‐up” field‐based, crop‐hydrological models are used to estimate food production and irrigation water extractions under multiple scenarios of water and nitrogen use and crop yield increases from 2010 to 2050 for 19 countries. The results show: (1) a food deficit before 2050 under a worst case climate change scenario in terms of annual crop yield improvement; (2) substantial water deficits, as a result of irrigation, for major food‐producing countries that will prevent these nations from meeting their domestic food requirements in the absence of investments in water infrastructure or food imports; and (3) a plateau in terms of crop food production associated with increased water extractions given no further increase in the current area of irrigated agriculture. Possible pathways to respond to the tensions in the food–water nexus are evaluated and include: (1) higher water productivity; (2) food trade; (3) improvements in both crop yield and “sustainable” total factor productivity; (4) greater investment in water infrastructure; and (5) integrative policies and decision processes. Without a combination of some, or all, of these possible pathways, appropriately adapted to bio‐physical and socio‐economic circumstances, the world faces grave risks in food and water security out to 2050.
New data‐driven estimation of terrestrial CO2 fluxes in Asia using a standardized database of eddy covariance measurements, remote sensing data, and support vector regression
Authors: Ichii Kazuhito , Ueyama Masahito , Kondo Masayuki , Saigusa Nobuko , Kim Joon , Alberto Ma. Carmelita , Ardö Jonas , Euskirchen Eugénie S. , Kang Minseok , Hirano Takashi , Joiner Joanna , Kobayashi Hideki , Marchesini Luca Belelli , Merbold Lutz , Miyata Akira , Saitoh Taku M. , Takagi Kentaro , Varlagin Andrej , Bret‐Harte M. Syndonia , Kitamura Kenzo , Kosugi Yoshiko , Kotani Ayumi , Kumar Kireet , Li Sheng‐Gong , Machimura Takashi , Matsuura Yojiro , Mizoguchi Yasuko , Ohta Takeshi , Mukherjee Sandipan , Yanagi Yuji , Yasuda Yukio , Zhang Yiping , Zhao Fenghua 
Published: March 2017

AbstractThe lack of a standardized database of eddy covariance observations has been an obstacle for data‐driven estimation of terrestrial CO2 fluxes in Asia. In this study, we developed such a standardized database using 54 sites from various databases by applying consistent postprocessing for data‐driven estimation of gross primary productivity (GPP) and net ecosystem CO2 exchange (NEE). Data‐driven estimation was conducted by using a machine learning algorithm: support vector regression (SVR), with remote sensing data for 2000 to 2015 period. Site‐level evaluation of the estimated CO2 fluxes shows that although performance varies in different vegetation and climate classifications, GPP and NEE at 8 days are reproduced (e.g., r2 = 0.73 and 0.42 for 8 day GPP and NEE). Evaluation of spatially estimated GPP with Global Ozone Monitoring Experiment 2 sensor‐based Sun‐induced chlorophyll fluorescence shows that monthly GPP variations at subcontinental scale were reproduced by SVR (r2 = 1.00, 0.94, 0.91, and 0.89 for Siberia, East Asia, South Asia, and Southeast Asia, respectively). Evaluation of spatially estimated NEE with net atmosphere‐land CO2 fluxes of Greenhouse Gases Observing Satellite (GOSAT) Level 4A product shows that monthly variations of these data were consistent in Siberia and East Asia; meanwhile, inconsistency was found in South Asia and Southeast Asia. Furthermore, differences in the land CO2 fluxes from SVR‐NEE and GOSAT Level 4A were partially explained by accounting for the differences in the definition of land CO2 fluxes. These data‐driven estimates can provide a new opportunity to assess CO2 fluxes in Asia and evaluate and constrain terrestrial ecosystem models.
Reconciling the Reynolds number dependence of scalar roughness length and laminar resistance
Authors: Li Dan , Rigden Angela , Salvucci Guido , Liu Heping 
Published: March 2017

AbstractThe scalar roughness length and laminar resistance are necessary for computing scalar fluxes in numerical simulations and experimental studies. Their dependence on flow properties such as the Reynolds number remains controversial. In particular, two important power laws (“1/4” and “1/2”), both having strong theoretical foundations, have been widely used in various parameterizations and models. Building on a previously proposed phenomenological model for interactions between the viscous sublayer and the turbulent flow, it is shown here that the two scaling laws can be reconciled. The 1/4 power law corresponds to the situation where the vertical diffusion is balanced by the temporal change or advection due to a constant velocity in the viscous sublayer, while the 1/2 scaling corresponds to the situation where the vertical diffusion is balanced by the advection due to a linear velocity profile in the viscous sublayer. In addition, the recently proposed “1” power law scaling is also recovered, which corresponds to the situation where molecular diffusion dominates the scalar budget in the viscous sublayer. The formulation proposed here provides a unified framework for understanding the onset of these different scaling laws and offers a new perspective on how to evaluate them experimentally.
Formation of plasma around a small meteoroid: 2. Implications for radar head echo
Authors: Dimant Y. S. , Oppenheim M. M. 
Published: March 2017

AbstractThis paper calculates the spatial distribution of the plasma responsible for radar head echoes by applying the kinetic theory developed in the companion paper. This results in a set of analytic expressions for the plasma density as a function of distance from the meteoroid. It shows that at distances less than a collisional mean free path from the meteoroid surface, the plasma density drops in proportion to 1/R where R is the distance from the meteoroid center; and, at distances much longer than the mean‐free‐path behind the meteoroid, the density diminishes at a rate proportional to 1/R2. The results of this paper should be used for modeling and analysis of radar head echoes.
Case report: a new method for treatment of permethrin – resistant head lice
Authors: Jahangiri Farhad 
Published: March 2017

Key Clinical MessageHead lice (Pediculus humanus capitis) infestation is an important disease worldwide, especially in children under 11 years old. Permethrin is the most common insecticide for treatment of human pediculosis, but nowadays resistance to permethrin and other pyrethroids has caused many treatment failures. The second treatment of choice is malathion.