bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparative Evaluation of the Effectiveness of Denture Cleansers on Surface Hardness of Permanent Silicone Denture Liners – An In vitro Study
Authors: Sameeh M. Abdul , Jyothsna M. K. , Nidhin R. , Manohar Prasanth , Sreedevi S. , Sasikumar T. P. 
Published: February 2023

Aim:
This study aimed to determine the effect of three commercially available denture cleansers on surface hardness of two different silicone denture liners at various time intervals.

Materials and Methods:
A total of 120 cylindrical specimens of permanent silicone-based soft liners were prepared from a custom made metal mold with dimensions of 15 mm × 10 mm, of which 60 specimens were fabricated using Voco™ and the remaining 60 specimens with Molossil™ permanent denture liners. All specimens were divided into four major groups based on cleansing treatments, comprising 30 specimens each. And then, all cleansers dissolved in 250 mL water as recommended by the manufacturer. Specimens of the first group were cleansed daily by rinsing with water and second group with Periogard™ denture cleansing solution and third group with Secure™ denture cleansing solution and the fourth group with Polident™ denture cleansing solution. Specimens of all groups were tested on 1st week, 1st month, and 6th month time interval using a Shore A Durometer. Three readings were noted for each sample and the mean of those readings was taken.

Results:
Surface hardness of all the samples was significantly higher after a period of 6 months irrespective of the cleansing treatment. Statistically significant changes were observed between Polident™, Secure™, and Periogard™ denture cleanser groups over control with time. Minor changes were observed in surface hardness of Voco™ denture liners as compared to Molossil™ soft liners for all groups, as time progressed.

Conclusion:
Voco™ soft denture lining material can be performed significantly better than Mollosil™ soft denture lining material in all cleansing treatments and Polident™ denture cleanser has the least effect on surface hardness of soft liners than Periogard™ and Secure™ denture cleansing agents.
Comparative Evaluation of Shear Bond Strength of Brackets Bonded with self Etch Primer/Adhesive and Conventional Etch/Primer and Adhesive System
Authors: Bhattacharjee Debarshi , Sharma Kanchan , Sahu Rajalaxmi , Neha Komal , Kumari Archana , Rai Anurag 
Published: February 2023

Introduction:
The shear bond strength obtained with an acid primer might not be clinically reliable. The present study evaluated the use of a new self-etch primer as compared with the conventional bonding procedure. The findings indicated that the use of a self-etch primer to bond orthodontic brackets to the namel surface provided lower, but clinically accept-able, shear bond forces (mean, 7.1 ± 4.4 MPa). Hence, this study has been designed to evaluate the shear bond strength of orthodontic brackets bonded with a self-etching primer system, and compare it with the conventional acid etching priming system.

Materials and Methods:
This study was designed to compare the shear bond strength of orthodontic brackets bonded with conventional acid etching- priming and a self-etching primer. For this purpose, one hundred and twenty noncarious, not subjected to any pretreatment chemical agents (e.g. hydrogen peroxide), no cracks caused by the presence of the extraction forceps, no caries and unrestored human maxillary 1st and 2nd premolars, freshly extracted for orthodontic treatment were collected and stored in distilled water before bonding. Separate molds of cold-cure acrylic were prepared and the extracted premolar teeth were embedded in the cold cure acrylic up to the cement enamel junction.

Results:
For the control group, the mean shear bond strength was 9.38 ± 6.02 MPa and for the experimental group, it is 6.91 ± 3.58 MPa. Group comparison using Chi-square test for the self-etching primer group adhesive remnant index (ARI) scores shows that more than half of the adhesive left over the tooth surface (score 3 and 4). For the conventional group, ARI scores show that there was no or slight amount of adhesive left over the tooth surface (score 5). The proportion of ARI score is significantly (P < 0.001) more in conventional (68.33%) as compared to self-etch primer (SEP) (28.33%). The proportion of ARI scores 4 and less is significantly more in SEP (71.67%) as compared to Conventional (6.67%) with P = 0.004 as per the Chi-square test.

Conclusion:
The bond strength of SEP is comparatively lesser than the conventional acid etching technique, but is definitely more or less to the required bond strength to resist masticatory forces. Majority of the studies conducted on self-etching primer are in vitro studies. Results of these cannot be extrapolated to the intraoral environment. Hence, further long-term clinical studies need to be carried out before actually recommending the use of self-etching primer in routine orthodontic bonding.
Comparative Evaluation of Genotoxicity in Tobacco Users versus Nontobacco Users
Authors: Thomas Arun Jacob , Nair Bindu J. , Oommen Sajna , Syamkumar V. , Raman Resmi K. 
Published: February 2023

Background:
Many of the contents of cigarette smoke are genotoxic in nature, and consequently, cytogenetic injury seems to be a trustworthy biomarker for deciding the influence of exposure to chromosome damaging agents in smoke. The cytokinesis-block micronucleus assay (CBMN assay) has been proven to be an effectual tool for the study of micronuclei (MN) that will help in estimating the genotoxicity in tobacco users alone which will further help in early cancer detection.

Objective:
The objective is to find out whether there is pronounced contrast in genotoxicity between tobacco users and nonusers by determining MN number in peripheral blood lymphocytes using CBMN assay.

Methodology:
MN frequency in peripheral blood lymphocytes was estimated in 5 ml of fresh blood obtained from sixty individuals using tobacco either smoking, chewing, or combination of both and also from thirty individuals with no habit of tobacco use. All were in the age group of 20–40 years.

Results:
There was a significant increase in genotoxicity in tobacco users when compared to that of nontobacco users. A positive correlation was also obtained between smoking index and MN frequency in the study.

Conclusion:
Approximation of frequency of MN by CBMN assay can be used to evaluate the genotoxicity present in blood and helps in identifying tobacco users who are at a high risk for the presence of cancer even before the appearance of clinical changes.
Immediate Psychological Impact of Dental Students on COVID-19 Epidemic in India – A Cross Sectional Study
Authors: Kandasamy Saravanan , John Reena Rachel , Jayaraman Arunkumar , Chinnakutti Suresh , Chandrasekar Manoj , Mallikarjunan DY 
Published: February 2023

Introduction:
The 2019 coronavirus disease (COVID-19) epidemic is a global health threat and is by far the largest outbreak of atypical pneumonia since after SARS over the past few decades. Within weeks of the initial outbreak the total number of cases and deaths exceeded those of SARS. Such mass Casualties often trigger waves of heightened fear and anxiety in many population.

Aim:
To assess the psychological impact and mental health status among the dental students studying in the Vinayaka Mission's Sankarachariyar Dental College, Salem, India.

Materials and Method:
A total of 21 psychological state questionnaires along with demographic aspects were distributed to 460 under graduate dental students from Vinayaka Mission's Sankarachariyar Dental College, Salem, Tamilnadu. The Psychological state was assessed using the Depression, Anxiety and Stress Scale (DASS).

Results:
404 questionnaires were taken for our study as they responded all questions. The results were calculated based on the responses obtained year wise, gender, Place of residence, Living with family, Steady family income and Acquaintance affected with covid and compared among the three psychological assessments Depression, Anxiety and stress. The results of the study were done using SPSS (V21.0IBM, Chicago) Software.

Conclusion:
We attempted to correlate the socio demographic datas with psychological status of the dental students' in our university using the DAS scale. This study focused on the need for treating the psychological impact of the society at this outbreak as the mental health is the most important to deal with.
The Sealer Penetration into the Dentinal Tubules
Authors: Ch Thouseef , Shaik Izaz , Khan Mohammed Muzammil , Parvekar Prashik , Mirza Mubashir Baig , Mustafa Mohammed , Tiwari Heena 
Published: February 2023

Introduction:
A good endodontic sealer aids in a successful root canal treatment. Sealer in turn depends on the thorough irrigation technique and debris removal. Hence, in the present study, we intend to compare the sealer's dispersion into dentinal tubules of the different irrigation systems by confocal laser scanning microscopy (CLSM).

Methodology:
Seventy-six single-rooted, freshly removed human mandibular premolars were taken. They were separated into equal groups as conventional endodontic needle irrigation system, Endovacirrigation, Endoactivator irrigation, and manual dynamic agitation groups. Protaper rotary system was used and obturation was done with gutta-percha. The sealer used was AH Plus labeled with fluorescent dye (0.1% Rhodamine B isothcyanate). Transverse sections from the root apex at the levels of 1 mm, 3 mm, and 5 mm were scanned using CLSM. The sealer's penetration for the depth and the percentage were measured.

Results:
We observed that endovac irrigation system showed maximum percentage and depth of sealer's penetration compared to endoactivator, manual dynamic agitation, and conventional methods at 1, 3, and 5 mm levels from the apex.

Conclusion:
The irrigation systems significantly influence the penetration of the Sealer into root dentinal tubules. When penetration of sealer at different levels, compared to endoactivator, manual dynamic agitation, and conventional method, significant greater levels were attained with the EndoVac system.
Perceptions and Awareness of Dental Students Toward Oral Tissues
Authors: Dadhich Harsh , Ahire Manisha Sardar , Nagar Saurabh Rajesh , Nimma Vijayalaxmi 
Published: February 2023

Background:
If oral mucosal lesions are detected early by the oral health practitioners, there will be a better prognosis for the lesions diagnosed. This cross-sectional study was designed to assess the perceptions and awareness of dental students of the Government Dental College and Hospital, Mumbai, toward oral tissues.

Materials and Methods:
A questionnaire was created to assess the perceptions and awareness of dental students towards oral tissues. This questionnaire had 25 questions with multiple choices. Options of these questions were based on 3-point and 5-point Likert scale. This questionnaire was converted into a Google Form and distributed among all the undergraduate students of the Government Dental College and Hospital, Mumbai, along with a declaration form via electronic methods such as Gmail and WhatsApp, after explaining to them the aim and objectives of the study.

Results:
A total of n = 334 dental students responded, yielding a response rate of 66.8%. Most dental students agreed that it is important to focus on oral soft tissues apart from oral hard tissues. Most participants believed that it is the role of the dentist to perform the complete oral examination. Lack of training, confidence, time, etc., were seen as barriers to at least some degree by participants.

Conclusion:
This study highlights the awareness of oral soft tissues among dental students and the importance of its academic reinforcement. This would definitely help budding dentists to work more on oral cancer prevention and detection, which ultimately may lead to a decrease in the incidence of oral cancers.
Programa de Gestão de Desempenho no IF Goiano: análise do projeto-piloto
Authors: Bombonati de Souza Moraes Rodrigo , William Pena Kenny , Ayres Arantes de Paiva Isadora 
Published: February 2023

O Programa de Gestão e Desempenho – PGD é uma ferramenta de gestão que substitui a assiduidade do servidor pelo controle de entregas de resultados que possam ser efetivamente mensuradas, modelo parecido com o teletrabalho. Trata-se de uma pesquisa descritiva. Assim, foram utilizados dados secundários de um questionário com perguntas abertas e fechadas, aplicado pelo Instituto Federal (IF) Goiano através da sua comissão de implantação do PGD, sendo que a participação foi voluntária e direcionada aos servidores aderentes ao PGD e às suas respectivas chefias. O objetivo deste artigo é fazer uma análise sobre o PGD nos dois primeiros meses do projeto-piloto, sob a ótica dos servidores aderentes ao PGD e suas respectivas chefias, como também conhecer as dificuldades e desafios e propor melhorias que possam subsidiar a decisão sobre a continuidade do PGD. Entre pontos positivos encontrados, destacam-se o aumento da produtividade e melhorias nas rotinas e na qualidade de vida do servidor aderente ao PGD. Entre as maiores dificuldades mencionadas, observou-se a elaboração do plano de trabalho e a definição de critérios para avaliação dos resultados pela chefia imediata. Este estudo pode contribuir para a discussão sobre a continuidade do PGD, oferecendo sugestões e perspectivas sobre benefícios, desafios e possibilidades.
Palavras-chave: PGD; home office; teletrabalho; IF Goiano; gestão de desempenho; produtividade.
Análisis de vegetación, cuencas y zonificación: Parque Nacional Henri Pittier, Venezuela
Authors: Rebolledo López Deisy Coromoto 
Published: February 2023

Esta investigación identificó, cuantificó y analizó la cobertura vegetal del Parque Nacional Henri Pittier, relacionando cuencas hidrográficas y unidades de zonificación con la unidad de vegetación bosque nublado (BN). Para esto se usó una gama de información cartográfica de diversas instituciones, escalas, representación, formatos y software. Entre los hallazgos se evidenció reducción de las superficies bajo bosques, causada por incendios. Los BN ocupan la mayor superficie (38,8%). Las áreas quemadas bajo BN son invadidas por herbazales. La cuenca de Chuao es la que tiene mayor área cubierta de BN. La cuenca del rio Güey es la única cuenca, de la vertiente sur, sin BN. La zona de protección integral (ZPI) ocupa la mayor superficie y ésta está presente en todas las unidades de vegetación. Además, gran proporción del parque está bajo la ZPI y de éstas 56,9% son bosques; y simultáneamente, 41,8% son BN.

Abstract
This research identified, quantified, and analyzed the vegetation cover of Henri Pittier National Park, Venezuela, in relation to watersheds and zoning units by means of cartographic information from a number of institutions, scales, representation, formats, and software. Among the findings, there was a reduction in the areas under forests, caused by fires. The BN occupy the largest area (38.8%). Burned areas under BN are invaded by grasslands. The Chuao basin is the one with the largest area covered by BN. The Güey river basin is the only basin, on the southern slope, without BN. The integral protection zone (ZPI) occupies the largest area and it is present in all the vegetation units. In addition, a large proportion of the park is under the ZPI and of these, 56.9% are forests; and simultaneously, 41.8% are BN.
Mesenchymal stem cell therapy for treatment of osteoradionecrosis of mandible in head and neck surgery patients - A way forward into the future with promising clinical Outcomes
Authors: Ainulakbar Mughal  , Merhaba Aftab  , Abdul Basit Shah Vardag  , Zubair Khan  , Hamdan Ahmed Pasha  , Muhammad Sohail Awan  
Published: February 2023

Managing osteoradionecrosis is an integral part of complication management in head and neck cancer patients. While essentially an infection, the management of this complication has a considerable task for head and neck surgeons. While various measures have been discussed for the management, stem cells injection therapy is a potential management option. Mesenchymal stem cell therapy provides the local tissue with growth factors and proliferative cells that can aid a radiated tissue in the healing process. The article intends to review the bedrock of the pathology, ranging from pathophysiological and the epidemiological concerns to sparking a potential discussion on the use of mesenchymal stem cell therapy in osteoradionecrosis of mandible in head and neck cancer surgery and thus the ensuing future of the regenerative medicine.
Continued...
Analisis Logam Cd, Cr, Cu dan Pb Pada Air Sumur di Sekitar Kampus Universitas Duta Bangsa Surakarta Menggunakan Metode Spektrofotometri Serapan Atom (AAS)
Authors: Handes Tika , Permatasari Desy Ayu Irma , Mahardika Muladi Putra 
Published: February 2023

Air merupakan salah satu kebutuhan primer manusia. Air sumur salah satu dari sumber mata air yang digunakan untuk memenuhi kebutuhan sehari-hari seperti minum, memasak, mencuci dan lain sebagainya. Penelitian ini bertujuan untuk mengetahui apakah ada kandungan logam Cd, Cr, Cu dan Pb serta konsentrasi logam tersebut pada air sumur di sekitar kampus Universitas Duta Bangsa Surakarta. Penelitian ini merupakan deskriptif eksperimen yang dilakukan dengan cara mengidentifikasi secara kualitatif dan kuantitatif. Identifikasi kuantitatif menggunakan alat spektofotometri serapan atom (AAS). Pengambilan sampel dilakukan pada jarak 3 titik yaitu jarak 100 meter (sampel A), jarak 200 meter (sampel B), dan jarak 500 meter (sampel C).Hasil penelitian menunjukkan bahwa kandungan logam pada air sumur A kadar logam Cd sebesar 0,0007 mg/L, logam Cr 0,0001 mg/L, logam Cu 0,003 mg/L dan logam Pb 0,051 mg/L. Pada air sumur B kadar logam Cd sebesar 0,0001 mg/L, logam Cr 0,0026 mg/L, logam Cu 0,001 mg/L. dan logam Pb 0,008 mg/L. Pada air sumur C kadar logam Cd sebesar < 0,00002 mg/L, logam Cr 0,0025 mg/L, logam Cu <0,00029 mg/L dan logam Pb 0,009 mg/L. Berdasarkan permenkes Nomor 32 tahun 2017 tentang standar baku mutu kesehatan lingkungan dan persyaratan kesehatan air maka kadar logam-logam tersebut masih dalam batas persyaratan sehingga air sumur di sekitar kampus Universitas Duta Bangsa Surakarta layak dikonsumsi dan digunakan untuk keperluan sehari-hari.

Kata kunci : Air Sumur, Logam Cd, Logam Cr, Logam Cu, Logam Pb
Anthelmintic Test of Combination of Carrot Peels (Daucus carota L.) and Pineapple Peels (Ananas comusus) Juice Against Silkworms (Tubifex sp)
Authors: Febryarti Yossy , Hariningsih Yetti , Hermawatiningsih Oktaviarika Dewi 
Published: February 2023

Background: Anthelmintics is a treatment used as an anti-worm that can eradicate worms in the human and animal bodies, one of which is against silk worms (Tubifex sp). One of the plants that may be used as anthelmintics is carrot skin (Daucus carota L.) and pineapple skin (Ananas comusus). Carrot peel contains flavonoids, quercetin, and tannins as anthelmintics and pineapple peel contains flavonoids, bromealin enzymes and tannins, so researchers are interested in making a combination of carrot peel juice and pineapple peel juice as an anthelmintic against silk worms (Tubifex sp). Objective: This study aims to determine the effectiveness of the combination of carrot peel and pineapple peel juice in eradicating silk worms (Tubifex sp). Methods: The method used is the squeeze method, specific specific standardization, lethal time test, paralysis time test. , the anthelmintic activity test of the combination of carrot peel juice and pineapple peel extract with concentrations of F1 25%: 75%, F2 50%: 50%, F3 75%: 25% using positive control Albendazole 0.06% w/v. The research data were analyzed using the Oneway Anova test. Results: The results of this study showed that the combination of carrot peel extract 75%: pineapple peel 25% had the best anthelmintic effectiveness against the lethal time. The anthelmintic effectiveness test obtained from the combination of carrot juice 25%: pineapple juice 75% showed the best results during paralysis time. The lethal time test of the combination of carrot peel and pineapple juice obtained an average time of death in F1 of 15.32 minutes. In F2, the average time of death was 18.155 minutes, while in F3 it was 20.37 minutes and the Oneway Anova result was p=0.000 (p<0.05). The paralysis time test for the combination of carrot peel and pineapple juice was found to have an average paralysis time of 13.625 minutes in F1. In F2, the average paralysis time was 13,733 minutes, while in F3 18,712 minutes and the Oneway Anova result was p=0,000 (p<0,05). Conclusion: The best combination of juice for the time of death is F1 with a concentration of 25% carrot juice: 75% pineapple juice, while the best combination for paralysis time is F1 with a 25% carrot juice concentration: 75% pineapple juice.
Keywords : Carrot Peels (Daucus carota L.), Pineapple Peels (Ananas comosus), Anthelmintics, Tubifex sp
Cost of Mass Drug Administration for Filariasis Elimination in the province of Sorsogon, Philippines
Authors: Amarillo Maria Lourdes E. , Belizario Jr Vicente Y. , Panelo Carlo Irwin A. , Sison Stephanie Anne M. , De Leon Winifreda U. , Ramirez Bernadette L. , Adrid Leah P. 
Published: February 2023

Objective. Elimination efforts for lymphatic filariasis are underway in the Philippines using mass drug administration (MDA) of diethylcarbamazine and albendazole as one of the main strategies. This cost analysis was done to determine the MDA implementation cost and provide useful information to the control programme on how to best utilize limited resources.
Methods. This cost analysis study was conducted in the province of Sorsogon, Philippines in 2004. The study was done from a program perspective. Cost data for 2003 was obtained retrospectively viakey informant interviews and records review using a standardized guide from a multi-country cost analysis study of filariasis elimination programs. Cost figures were classified as either economic or financial costs and expressed in real terms using 2002 as base year. Sensitivity analysis was likewise performed.
Results. The total economic cost and cost per person treated with MDA were estimated at US$223,549.55 (Php12,116,385.48) and US$0.40, respectively. The financial costs were less than half ofthe economic costs. The main cost driver was drug distribution. The highest economic and financial costs were incurred at the national (54.5%) and municipal (74.4%) levels, respectively. High variation in costs of MDA activities was observed.
Conclusion. This cost analysis provides reasonable estimates which may be used to assist government and other stakeholders in program planning and resource generation for filariasis elimination programs in endemic areas.