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2021

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Digital Literacy For Enhancing Preparedness Capacity To Climate Related Risks Among Ageing Population In Bankgok, Thailand, Chandhit Sawangnate Jan 2021

Digital Literacy For Enhancing Preparedness Capacity To Climate Related Risks Among Ageing Population In Bankgok, Thailand, Chandhit Sawangnate

Chulalongkorn University Theses and Dissertations (Chula ETD)

The elderly population is amongst the most vulnerable group confronting climate related risks. This research aims to assess flood hazards distribution and investigate factors influencing flood literacy and preparedness actions among the elderly in Bangkok, Thailand. The AHP-GIS technique, land-use, drainage density, and annual maximum rainfall are the most important factors that influence flood hazard in Bangkok while land subsidence, past flooding events, and slope of the city have the lowest scores. Around 50% (784.089 sq.km.) of total area, mainly situated in the economic centers, is defined as high hazard. The results of policy analysis found that lack of integration …

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Football As A Tactical Innovation For Mobilization: A Study Of Fc Barcelona And The Catalan Independence Movement, Phawin Seangkumchoo Jan 2021

Football As A Tactical Innovation For Mobilization: A Study Of Fc Barcelona And The Catalan Independence Movement, Phawin Seangkumchoo

Chulalongkorn University Theses and Dissertations (Chula ETD)

The Catalan Independence Movement is the movement in the Northern region of Spain which aims to be independent from Spain cause of problems in politics and economic. The Catalan mobilization not only marches on the street but also plays their role through the Spanish political procedure. In Catalan, the referendum on independence was issued in 2009-2011, 2014, and 2017. This study focuses on the Catalan mobilization tactical innovation which uses football as a tool against Spain. In this case, football which was used mean ‘FC Barcelona,’ one of the famous football club in the world. This study aims to identify …

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Quality Control Of Chemical Grade Calcium Carbonate From Lopburi Limestone Deposit In Thailand, Pimpichcha Teawpanich Jan 2021

Quality Control Of Chemical Grade Calcium Carbonate From Lopburi Limestone Deposit In Thailand, Pimpichcha Teawpanich

Chulalongkorn University Theses and Dissertations (Chula ETD)

Calcium carbonate (CaCO3) is naturally produced from calcite, limestone, chalk, and marble. It is being used as raw material in various industries (e.g., cement, plastic, paint, paper, and pharmaceutical industries). The low-grade CaCO3 samples obtained from a calcite plant at Khoktum Sub-district, Muang Lopburi District, Lopburi Province, Thailand were used in this study. These samples contain more than 98% of CaCO3 while Fe2O3 contents are higher than 0.1% and increased after finished the process. Because of this problem, the products could not be sold since lower Fe2O3 contents are required (e.g., ≤0.05% for filler grade and ≤ 0.1% for animal …

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The Effectiveness Of Asiaticoside On Osteogenic Differentiation Ability In Aging Human Periodontal Ligament Cells In Vitro, Adisa Suthirathikul Jan 2021

The Effectiveness Of Asiaticoside On Osteogenic Differentiation Ability In Aging Human Periodontal Ligament Cells In Vitro, Adisa Suthirathikul

Chulalongkorn University Theses and Dissertations (Chula ETD)

Retaining teeth is essential for the quality of life of the aging population. However, aging has biological effects in periodontal ligament cells with significant changes in their proliferative rate and regenerative function. Asiaticoside, extracted from Centella asiatica, was found to have potential in osteogenic differentiation and mineralization in human periodontal ligament cells (HPDLCs). The aim of this study is to investigate the effect of asiaticoside on the aging HPDLCs osteogenic differentiation and mineralization. Aging HPDLCs, retrieved from patients age 60 and above, were confirmed aging status using Senescence-Associated ß -Galactosidase assay. The cells were incubated with various concentrations of asiaticoside …

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Surface Activation Of Rice Husk-Derived Hydrochar As An Adsorbent For Atrazine And Ammonium, Kim Anh Phan Jan 2021

Surface Activation Of Rice Husk-Derived Hydrochar As An Adsorbent For Atrazine And Ammonium, Kim Anh Phan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Due to the agricultural intensity, studies of sustainable solutions for atrazine and nitrogen contamination have attracted more attention. This study is aimed to develop rice husk hydrochar as an adsorbent for atrazine and ammonium adsorption. Effects of microwave-assisted hydrothermal carbonization (MHTC) conditions including temperature (150 – 200°C), residence time (20 – 60 min), and liquid to solid ratio (5:1 – 15:1 mL/g) on the atrazine and ammonium adsorption capacity were investigated. Surface activation of rice husk hydrochar samples was synthesized using potassium hydroxide (KOH) and hydrogen peroxide (H2O2) with various concentrations. The results showed that higher MHTC temperature with higher …

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Health Risk Assessment Of Toxic Metals In Commonly Consumed Salad Leafy Vegetables In Bangkok, Zin Htoo Hlyan Jan 2021

Health Risk Assessment Of Toxic Metals In Commonly Consumed Salad Leafy Vegetables In Bangkok, Zin Htoo Hlyan

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objectives of this study were 1) to investigate concentrations of toxic metals including As, Cd, and Pb in the commonly consumed salad leafy vegetables which were sold in Bangkok, and 2) to assess potential human health risks of As, Cd, and Pb exposure via salad leafy vegetables consumption. A total of 120 samples were randomly collected from local fresh markets in Bangkok. The total concentrations of toxic metals were determined by an inductively coupled plasma mass spectroscopy (ICP-MS). Total concentrations of As, Cd and Pb in coral lettuce (CL), red coral (RC) and green oak (GO) for soil cultivation …

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Evaluation Of Cadmium Bioaccumulations In Pak Choi Grown By Hydroponics System, Piyachet Jinsart Jan 2021

Evaluation Of Cadmium Bioaccumulations In Pak Choi Grown By Hydroponics System, Piyachet Jinsart

Chulalongkorn University Theses and Dissertations (Chula ETD)

Cadmium is one of the most harmful heavy metals reported to contaminate the food chain and pose a high risk for health, including non-carcinogenic and carcinogenic effects. High levels of cadmium contamination due to industrial effluent discharge have been reported to affect plant growth and productivity, which could be used as a bio-indicator for cadmium bioaccumulation in plants. The utilization of cadmium-contaminated water for vegetable production has been known to increase the health risk for human consumption. Moreover, pH level was known as a factor affecting cadmium solubility and cadmium uptake by plants. However, there is still unknown about critical …

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Investigation Of Copper And Zinc Contaminations In Bioponic Systems Using Chicken Manure Fertilizer, Satja Aksorn Jan 2021

Investigation Of Copper And Zinc Contaminations In Bioponic Systems Using Chicken Manure Fertilizer, Satja Aksorn

Chulalongkorn University Theses and Dissertations (Chula ETD)

The bioponic system is a system that utilizes biological waste as a nutrient-rich source such as chicken manure fertilizer for plant growth integrated with aquaponic. At present, chicken manure fertilizer is contaminated with Cu and Zn may have the potential health effects through vegetable consumption. The objective of this study was to evaluate nitrogen transformation, nitrogen recovery, and plant growth in chicken manure-based bioponics at Cu (50–150 mg/kg) and Zn (200–600 mg/kg) supplementation and investigate the effects of Cu and Zn supplementations on plant bioaccumulation, root microbial community, and dietary health risk. Cu and Zn concentrations were analyzed using inductively …

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Ecological Risk Assessment Of Microplastics And Heavy Metals In Central Industrial Wastewater Treatment Plant, Thamonwan Phuprasert Jan 2021

Ecological Risk Assessment Of Microplastics And Heavy Metals In Central Industrial Wastewater Treatment Plant, Thamonwan Phuprasert

Chulalongkorn University Theses and Dissertations (Chula ETD)

Microplastics become a big concern in environment. Their small particle size can absorb a variety of pollutants from the nearby environment when discharged into the environment, especially heavy metals. Central industrial wastewater treatment plant (WWTP) is an important source of microplastics in the environment. In this study, wastewater and sludge were collected from two industrial estates in Thailand. Wastewater was collected from 4 points i.e., influent, post grit chamber, post aeration tank, and post sedimentation tank while sludge was collected from sludge storage. Concentration of microplastics, heavy metals and heavy metals on microplastics were examined to evaluate ecological risk assessment. …

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Cryptocurrency Trading With Ensemble Machine Learning Algorithm, Siwat Assavakijphanich Jan 2021

Cryptocurrency Trading With Ensemble Machine Learning Algorithm, Siwat Assavakijphanich

Chulalongkorn University Theses and Dissertations (Chula ETD)

In this project, we aimed to use ensemble machine learning algorithms to trade ten cryptocurrencies along with attempting to add more external factors. Cryptocurrency included in this project were Cardano (ADA), Binance Coin (BNB), Bitcoin (BTC), DOGE, DOT, Ethereum (ETH), LINK, Polygon (MATIC), Uniswap (UNI), and Ripple (XRP). Furthermore, ten external factors, which are ten major stock indices, were added to the algorithm. All machine learning algorithms in this project are used to trade for four trading circumstacnes, an 1-hour interval, six-hour interval, daily interval and weekly interval. There are six machine learning models in this project which will be …

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A Study Of Sustainability In The Energy Sector In Myanmar Between 2011 And 2020, Clara Mang Sui Tang Jan 2021

A Study Of Sustainability In The Energy Sector In Myanmar Between 2011 And 2020, Clara Mang Sui Tang

Chulalongkorn University Theses and Dissertations (Chula ETD)

In modern society, energy becomes a life supporting mechanism, as it is not only entangled with the environment pillar of sustainable development, but also inseparably related to the economic and social pillars of society. Taking advantage of a qualitative research method, this study critically examines the level of sustainability of Myanmar’s energy sector between 2011 and 2020, using 2011 as a baseline, by observing three critical components: energy security, environmental considerations in energy production and securing financial health for the sector. Energy security, possessing uninterrupted availability of energy sources at an affordable price, is studied from available macro secondary data …

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Queering The Migrant Experience: Gay Filipino Workers’ Performance Of Gender And Sexual Identities In Bangkok, Hans Kevin Madanguit Jan 2021

Queering The Migrant Experience: Gay Filipino Workers’ Performance Of Gender And Sexual Identities In Bangkok, Hans Kevin Madanguit

Chulalongkorn University Theses and Dissertations (Chula ETD)

The Philippine migration scholarship heavily focuses on heteronormative issues that depict the migrant workers as heterosexuals. Due to this trend, there is a scarcity of studies on overseas Filipino workers who identify as part of the Lesbian, Gay, Bisexual, Transgender, and Queer (LGBTQ+) Community. Hence, this qualitative research focuses on eleven documented Filipino workers in Thailand who are males assigned at birth and identify as gay homosexuals. Individual informal interviews were employed to investigate how they practice their non-normative gender and sexuality, given their multiple yet intersectional social identities in a country with vibrant queer cultures. It also probes the …

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A Study Of Covid-19 Crisis Communication In Myanmar (January 2020-January 2021) : Divergences Between Ministry Of Health And Sports And State Counsellor, Aye Pa Pa Moe Jan 2021

A Study Of Covid-19 Crisis Communication In Myanmar (January 2020-January 2021) : Divergences Between Ministry Of Health And Sports And State Counsellor, Aye Pa Pa Moe

Chulalongkorn University Theses and Dissertations (Chula ETD)

Effective crisis communication is critical in a country like Myanmar, which has a vulnerable population and a newly democratically elected government. During the COVID-19 pandemic, Myanmar's government established multi communication channels to interact directly with its citizens and other actors, including government agencies, allowing for active stakeholder participation in crisis management. The purpose of this research is to identify the Myanmar government's crisis communication strategy in managing the COVID issue at the national level from January 2020 to January 2021. The study will take a three-stage approach to crisis management, with pre-crisis, crisis, and post-crisis stages. It also explored Myanmar's …

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The Karen Diaspora : Transnational Sense Of Belonging And Practices After The 2021 Myanmar Coup, Thinh Mai Phuc Jan 2021

The Karen Diaspora : Transnational Sense Of Belonging And Practices After The 2021 Myanmar Coup, Thinh Mai Phuc

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research examines the Karen diaspora’s transnational sense of belonging, ideological transition and tactics embodied in transnational activities after the 2021 Myanmar military coup. Looking at young Karen people in 5 host countries including the United States, Australia, Canada, Norway and Thailand, it is evident that those people in the diaspora still perceive the notion of homeland and maintain an emotional sense of belonging to their homeland after a long period of resettlement in host countries. In the context of the 2021 coup, those young people have engaged actively in transnational activities with various tactics used both on-site and online. …

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Does South Korea's Melon Chart Ranking Influence K-Pop Artists' Youtube Views?, Farsai Tipsotikul Jan 2021

Does South Korea's Melon Chart Ranking Influence K-Pop Artists' Youtube Views?, Farsai Tipsotikul

Chulalongkorn University Theses and Dissertations (Chula ETD)

Although K-pop has been diffused throughout the world by YouTube and become globalized, artist’s success is still evaluated by their reputation within the domestic market. Amidst the intense competition in the South Korean music industry, it’s inevitable that artists would hope their songs perform well on the domestic chart as it’s a way to gain public attention. Thus, it leads to the question; “Are some artists putting too much stress on the domestic performances when the global market is also an opportunity?”. To answer the question, this study analyzes the data by quantitative approach to examine whether Melon chart ranking, …

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A Comparison Between Integrative And Instrumental Motivation Of Thai-Korean Language Learners, Koravan Teeramatvanit Jan 2021

A Comparison Between Integrative And Instrumental Motivation Of Thai-Korean Language Learners, Koravan Teeramatvanit

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objective of this study is to examine the types of motivation of Thai­-Korean language learners and to find which type of motivation is dominant for Thai people learning Korean language. An online survey conducted between October and November 2021 collected 155 Thai-Korean language learners from two Korean language institutes certified by the Embassy of the Republic of Korea, namely Chiang Mai King Sejong Institute, and King Sejong Institute in Bangkok. For detailed analysis, the responses of 60 students and 95 non­students were further examined, mainly by comparing the mode of their responses. The results reveal that student and non-student …

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Contributing Factors In Aircraft Accidents Triggering Fatalities, Prakayphet Chalayonnawin Jan 2021

Contributing Factors In Aircraft Accidents Triggering Fatalities, Prakayphet Chalayonnawin

Chulalongkorn University Theses and Dissertations (Chula ETD)

Air transport has always been considered the safest way to travel. It has contributed numerous economic and social benefits, for instance, connecting multimodal modes of transportation, increasing employment, driving global and local economic activities, reducing travel time and generating trade, tourism, and services, connecting people and countries, and supporting humanitarian activities in a remote rural area. Historical records on the fatality ratio suggested that air transportation has the highest likelihood of accidents (occurrences with fatalities) when compared to all other transportation modes, including highway, railroad, and water. Then, when an accident occurs, it largely affects various stakeholders. This study aims …

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The Healthcare Information For Patient Referral, Veerawan Aumpanseang Jan 2021

The Healthcare Information For Patient Referral, Veerawan Aumpanseang

Chulalongkorn University Theses and Dissertations (Chula ETD)

Despite the cooperative sharing of Health Information Exchange (HIE), various distinct limitations and barriers are found, i.e., substantial time and resources are being used to achieve health information. This paper aims to investigate the limits of healthcare information sharing policy implementation and assorts the critical and shareable set of relevant healthcare information to patient referral systems in Thailand. Mixed-methods research methodology, both quantitative and qualitative mechanisms are conducted. The study results present the correlation between the current healthcare information exchange among the hospitals in patient referral systems and the limitations of implementing the HIE policy composed of technical, economic, political, …

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Development Of Novel Point-Of-Care-Testing For Oxalate Detection In Urine Based On Oxalate-Binding Ligands, Naruerat Joybumrung Jan 2021

Development Of Novel Point-Of-Care-Testing For Oxalate Detection In Urine Based On Oxalate-Binding Ligands, Naruerat Joybumrung

Chulalongkorn University Theses and Dissertations (Chula ETD)

Kidney stone disease is the third most common urinary tract disease worldwide that is more prevalent in the tropics. In Thailand, the highest stone prevalence up to 17% is reported in the Northeast. The disease is highly recurrent with a recurrence rate of about 50% within 5-10 years. The most common type of kidney stones is calcium oxalate (CaOx), and an increased urinary oxalate excretion is an important risk factor. Most of kidney stone patients have a hyperoxaluria condition (urinary oxalate >40 mg/day or >0.46 mmol/day). Therefore, urinary oxalate measurement has been widely used for estimating the risk of CaOx …

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Epigenetic Regulation Of Reactive Oxygen Species-Induced Tumor Progression In Hepatocellular Carcinoma, Suchittra Phoyen Jan 2021

Epigenetic Regulation Of Reactive Oxygen Species-Induced Tumor Progression In Hepatocellular Carcinoma, Suchittra Phoyen

Chulalongkorn University Theses and Dissertations (Chula ETD)

Oxidative stress is a consequence of an imbalance of antioxidants and reactive species. The most common form of reactive species is derived from oxygen, called reactive oxygen species (ROS). ROS involve in pathogenesis of several diseases including cancers. Cancer genesis and progression are contributed through both genetic and epigenetic mechanisms. Histone modification, a post-translational modification at histone tails, is one of the epigenetic mechanisms known to participate in carcinogenesis and tumor progression. Although the ROS-induced histone modification alteration has been demonstrated in some cancers, the change in histone methylation and gene expression by ROS in hepatocellular carcinoma (HCC) is scarcely …

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Development Of A Human Viable Heavy Chain Antibody Against The Alpha Folate Receptor As A Molecule For Targeted Application By Phage Display Technology, Nattihda Parakasikron Jan 2021

Development Of A Human Viable Heavy Chain Antibody Against The Alpha Folate Receptor As A Molecule For Targeted Application By Phage Display Technology, Nattihda Parakasikron

Chulalongkorn University Theses and Dissertations (Chula ETD)

Alpha folate receptor (FRα) is currently under investigation as a target for the treatment of patients with non-small-cell lung cancer (NSCLC), since it is highly expressed in tumor cells but is largely absent in normal tissue. In this study, a novel human variable domain of a heavy-chain (VH) antibody fragment specific to FRα was enriched and selected by phage bio-planning. The positive phage clone (3A102 VH) is specifically bound to FRα and also cross-reacted with FRβ, as tested by ELISA. Clone 3A102 VH was then successfully expressed as a soluble protein in an E. coli shuffle strain. The obtained soluble …

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Comparative Response Of Dendritic Cells To Pathogenic And Non-Pathogenic Leptospira Spp., Pratomporn Krangvichian Jan 2021

Comparative Response Of Dendritic Cells To Pathogenic And Non-Pathogenic Leptospira Spp., Pratomporn Krangvichian

Chulalongkorn University Theses and Dissertations (Chula ETD)

Leptospirosis is a zoonotic disease caused by pathogenic Leptospira species, which consist of three groups and contain 4 subclades: pathogenic strains (P1), intermediate strains (P2), and non-pathogenic strains (S1 and S2). Infection of pathogenic leptospires occurs through contact with contaminated environments. Then, leptospires present in the bloodstream disseminate to target organs. Nowadays, the knowledge of the immune response to pathogenic and non-pathogenic leptospires during early infection is still limited. Due to the limitation of a susceptible host, immunological reagents for hamsters and strains of mice are limited and not available. Dendritic cells are the first cells to encounter leptospires found …

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Designing An Extracorporeal Plasma Filtration Column With Specific Binding To Dengue Virions, Sasiwimon Thonghong Jan 2021

Designing An Extracorporeal Plasma Filtration Column With Specific Binding To Dengue Virions, Sasiwimon Thonghong

Chulalongkorn University Theses and Dissertations (Chula ETD)

Dengue infection is one of the major public health concerns and no specific treatment is currently available. An extracorporeal system is one of the alternative treatment in severe dengue patients with impending shock. However, the commercial immunoadsorption devices were size-exclusive, non-selective designed for multipurpose thus not specific for dengue syndrome. This study focuses on establishing the flavivirus-specific (4G2) antibody entrapped into the alginate bead. Results showed that the viral titer reduced more than 90 % after 3 h running on a simulated circuit quantified by reverse transcription qPCR and plaque titration assay. The experiments were repeated with two biological replicates …

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Impact Of Bacterial Dna In Severity Of Sepsis, Warerat Kaewduangduen Jan 2021

Impact Of Bacterial Dna In Severity Of Sepsis, Warerat Kaewduangduen

Chulalongkorn University Theses and Dissertations (Chula ETD)

Bacterial sepsis can be caused by intestinal damage, leading to the passage of viable bacteria and their components into the circulatory system. Bacterial-free DNA in the blood during sepsis can be derived from bacterial death and intestinal translocation of free DNA in the gut contents. The presence of bacterial DNA in combination with lipopolysaccharide (LPS) can lead to more serious outcomes of sepsis. To explore the impact of bacterial-free DNA in sepsis, animal and macrophage experiments were performed. Firstly, the appearance of bacterial-free DNA and bacteriome in the blood was presented in mice with cecal ligation and puncture sepsis. Secondly, …

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Dosimetric Impact Of Interplay Effects Instereotactic Body Radiation Therapy (Sbrt) Lung Cancer, Vanida Poolnapol Jan 2021

Dosimetric Impact Of Interplay Effects Instereotactic Body Radiation Therapy (Sbrt) Lung Cancer, Vanida Poolnapol

Chulalongkorn University Theses and Dissertations (Chula ETD)

Lung cancer patient breathing induced interplay effects in the volumetric modulated arc therapy (VMAT) together with stereotactic body radiation therapy (SBRT), which lead to non-uniform doses within the target volume and unwanted dose to the surrounding tissues. The purpose of this study was to investigate the dosimetric impact of interplay effects in 6 MV FFF of photon beams for lung cancer and to calculate the novel interplay effects factor (IEF) for VMAT-SBRT lung cancer. This study performed the static and dynamic measurements using two dimensions (2D) robotic platform and diode array for 3D-conformal radiation therapy (3D-CRT) plans, while using three …

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Effects Of Strongyloides Stercoralis Antigens On Immune Responses In Dendritic Cells, Vittawin Sutaveesup Jan 2021

Effects Of Strongyloides Stercoralis Antigens On Immune Responses In Dendritic Cells, Vittawin Sutaveesup

Chulalongkorn University Theses and Dissertations (Chula ETD)

Strongyloidiasis is a parasitic disease caused by Strongyloides stercoralis. Infection in the immunocompromised hosts such as organ transplants, SLE patients, or HIV and HIPV infected patients can cause severe strongyloidiasis. Infected patients have high levels of Th2, and Treg related cytokines, including IL-4, IL-5, IL-9, IL-10, IL-13, and TGF-β. These cytokines are then decreased to normal levels after the treatments. Parasites have several mechanisms to suppress or evade the host’s immune response, such as suppressing the expression of co-stimulatory molecules on antigen-presenting cells (APCs), stimulating apoptosis of APCs, or stimulating Th2 and Treg responses. Dendritic cells (DCs) play a crucial …

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Development Of A Personalized Workplace Learning Program To Enhance The Cultural Intelligence Of Cabin Crew From International Airlines, Dech-Siri Nopas Jan 2021

Development Of A Personalized Workplace Learning Program To Enhance The Cultural Intelligence Of Cabin Crew From International Airlines, Dech-Siri Nopas

Chulalongkorn University Theses and Dissertations (Chula ETD)

This thesis study employed R&D as a research methodology, and employ a qualitative method to collect the data. It aimed to 1) explore the background of cabin crew from the international airlines concerning cultural intelligence from seven key informants; 2) develop personalized workplace learning programs to enhance the cultural intelligence of cabin crew from the international airlines with seven key informants of the cabin crew and the researcher as a facilitator, and 3) propose a guideline for developing a personalized workplace learning program to enhance the cultural intelligence of cabin crew from the international airlines by developing all the findings …

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Predictors Of Time To Hospital Among People With Colorectal Cancer, Saimai Tumwijit Jan 2021

Predictors Of Time To Hospital Among People With Colorectal Cancer, Saimai Tumwijit

Chulalongkorn University Theses and Dissertations (Chula ETD)

This retrospective, cross-sectional study aims to describe time to hospital, relating factors, and determine predictors of time to hospital among people with colorectal cancer. Multistage random sampling was used to yield a probability of 240 people with colorectal cancer visiting medical and surgical outpatient departments, oncology units, radiology units, endoscopic units, and inpatient departments. Research instruments consisted of personal information sheet, time to colorectal cancer diagnosis questionnaire, knowledge about colorectal cancer questionnaire (KR-20 = .786), The modified illness perception questionnaire-revised (a = .674 - .836), health care seeking behavior questionnaire (a = .706), and perceived seriousness of warning signs and …

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Effect Of Different Placement Methods On Voids Formationin Class Ii Cavity Restored With Bulk-Fill Resin Composite, Parinthorn Siyoputhawong Jan 2021

Effect Of Different Placement Methods On Voids Formationin Class Ii Cavity Restored With Bulk-Fill Resin Composite, Parinthorn Siyoputhawong

Chulalongkorn University Theses and Dissertations (Chula ETD)

The aim of this study was to evaluate void formation by micro-computed tomography in two-surface Class II cavities restored with two bulk-fill resin composites using different placement methods. Standardized Class II cavities were prepared in forty intact human maxillary first premolar teeth. The teeth were randomly divided into four groups and restored with (n=10): 1) one bulk placement with hand instrument; 2) two-bulk placement with hand instrument; 3) one bulk placement with injectable dispenser; 4) one bulk placement with injectable dispenser and sonic-activated handpiece. Percentage of void formation in the entire restoration was evaluated. Welch's ANOVA and Games-Howell post hoc …

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Anti-Inflammatory And Regeneration Properties Of Iloprost On Inflamed Human Dental Pulp Cells Model: An In Vitro Study, Rahman Wahyudi Jan 2021

Anti-Inflammatory And Regeneration Properties Of Iloprost On Inflamed Human Dental Pulp Cells Model: An In Vitro Study, Rahman Wahyudi

Chulalongkorn University Theses and Dissertations (Chula ETD)

In the clinical situation, pulp exposure can happen during caries removal procedures. Inflammation can occur on the pulp of the exposed area because of infiltration of bacteria from caries or as a result of pulp reaction to caries removal drilling. When the pulp was exposed during the caries removal procedure, traditional methods to preserve the pulp such as pulp capping and pulpotomy were performed. The ideal treatment outcome of the pulp exposure is to regain the primary structure of tubular dentin as well as maintain the vitality and healthiness of the dental pulp Thus, good dental materials or drugs used …

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