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2020

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Effect Of Social Media Model To Improve Sexual Health Literacy Among Secondary School Female Students In Southern Provinces, Thailand: A Quasi Experimental Study, Premyuda Narkarat Jan 2020

Effect Of Social Media Model To Improve Sexual Health Literacy Among Secondary School Female Students In Southern Provinces, Thailand: A Quasi Experimental Study, Premyuda Narkarat

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background/Objectives: Adolescent pregnancy is one of major public health issues globally and in Thailand. Female adolescents are at high risk of sexual and reproductive health problems like unintended pregnancies, abortion, childbirth related complications including sexually transmitted diseases (STDs) and AIDS due to poor sexual health literacy (SHL). Sexual health literacy (SHL) is one of very important factors to prevent teenage pregnancy. The aim was to examine the effect of social media model to improve sexual health literacy among secondary school female students in southern provinces of Thailand. Method: This study employed a quasi-experimental research design using two groups the intervention …

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Improving Routine Immunization Coverage Through Strengthening Interpersonal Comminication Skills Of Primary Health Care Workers In Rural Local Government Areas In Kebbi State Nigeria, Saudat Abdullahi Basheer Jan 2020

Improving Routine Immunization Coverage Through Strengthening Interpersonal Comminication Skills Of Primary Health Care Workers In Rural Local Government Areas In Kebbi State Nigeria, Saudat Abdullahi Basheer

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: In 2015, Kebbi state was among the four (4) states in northwestern Nigeria that have low routine immunization performance in the country. National Nutrition and Health Survey 2015 report indicated that only 7.8% of the eligible children have received three doses of DPT/Penta and measles coverage was 14.7%. There was no documented research to investigate the effect of interpersonal communication skills on routine immunization services in Kebbi state Nigeria. The objective of this study, therefore, was to examine the effect of vaccination education on improving mothers' knowledge and uptake of routine immunization services among children in the rural LGAs …

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Knowledge, Attitude, And Practice Towards Social Distancing Among Undergraduate Students In Medical Fields During Rapid Rise Of Covid-19 In Samarinda City, Indonesia : A Cross Sectional Study, Siti Hadijah Aspan Jan 2020

Knowledge, Attitude, And Practice Towards Social Distancing Among Undergraduate Students In Medical Fields During Rapid Rise Of Covid-19 In Samarinda City, Indonesia : A Cross Sectional Study, Siti Hadijah Aspan

Chulalongkorn University Theses and Dissertations (Chula ETD)

Social distancing is health guidelines recommended by World Health Organization (WHO) for controlling the COVID-19 transmission. Undergraduate students in medical fields had responsibility in spreading accurate health promotion during this prolong pandemic. This study aimed to determine the practice of social distancing and its associated factors, to find out the reasons for not practicing social distancing along with the source of social distancing information used by undergraduate students in medical fields in Samarinda, Indonesia. This cross-sectional online survey study (April to May 2021) involved 422 undergraduate students from medicine, public health and pharmacy faculty using convenience sampling technique. Binary logistic …

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A Social Ecology Of Sexual Health And Well-Being Among Older Gay Men And Transgender Women In Chiang Mai, Thailand: A Qualitative Study, Suchon Tepjan Jan 2020

A Social Ecology Of Sexual Health And Well-Being Among Older Gay Men And Transgender Women In Chiang Mai, Thailand: A Qualitative Study, Suchon Tepjan

Chulalongkorn University Theses and Dissertations (Chula ETD)

With increasing ageing populations in Thailand, including sexually diverse communities, there has been little attention to older gay men and transgender women regarding their sexual health and well-being. Several international studies indicated that these communities have been underserved, especially in countries that lack human rights to protect against social and cultural stigma. The well-being of this population, that had experienced discrimination, victimization, and identity concealment in their early years, could have been better understood through open-ended exploration. This study explores the social-ecological factors contributing to the sexual health of older gay men and transgender women in Chiang Mai. This qualitative …

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Association Between Smartphone Addiction And Mental Health Among High School Students In Bangkok, Thailand: A Cross-Sectional Study, Suphasuta Doungraksa Jan 2020

Association Between Smartphone Addiction And Mental Health Among High School Students In Bangkok, Thailand: A Cross-Sectional Study, Suphasuta Doungraksa

Chulalongkorn University Theses and Dissertations (Chula ETD)

The technology today is rapidly and continuously intervening into people's lives, and when people become too addict to electronic devices has shown series of abnormality of health problems which including both physical and mental. As it mentioned, the study aims to examine the relationship of smartphone addiction and mental health specifically in depression, anxiety, and stress. This study aims to investigate the relationship between smartphone addiction and mental health among high school students in Bangkok, Thailand. There were sample of 420 high school students in Bangkok, Thailand who participated in self-administrated questionnaires for a cross-sectional study of smartphone addiction and …

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Unit Cost Analysis Of Acute Respiratory Infection (Ari) Clinic For Covid-19 Screening At Bangbuathong Hospital, Nonthaburi, Thailand, Tharit Mongkol Jan 2020

Unit Cost Analysis Of Acute Respiratory Infection (Ari) Clinic For Covid-19 Screening At Bangbuathong Hospital, Nonthaburi, Thailand, Tharit Mongkol

Chulalongkorn University Theses and Dissertations (Chula ETD)

The COVID-19 outbreak has affected the services of all hospitals in Thailand, especially making their financial position at risk of bankruptcy. Although managing the cost of health care services for COVID-19 effectively can help reduce that risk, but very few researches has been done and analyzed on these issues. This study aimed to identify the unit cost and cost recovery of Acute Respiratory Infection (ARI) clinic for COVID-19 screening at Bangbuathong Hospital. This research was a descriptive study by retrospective data collection from hospital recorded and database of costs of ARI clinic between March to May 2021, which was the …

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Brain-Derived Neurotrophic Factor (Bdnf) Levels And Subjective Sleep Quality In The First Trimester Of Pregnancy Among Myanmar Migrant Workers In Samut Sakhon Province, Thailand: A Secondary Data Analysis, Thuvachit Kriengtuntiwong Jan 2020

Brain-Derived Neurotrophic Factor (Bdnf) Levels And Subjective Sleep Quality In The First Trimester Of Pregnancy Among Myanmar Migrant Workers In Samut Sakhon Province, Thailand: A Secondary Data Analysis, Thuvachit Kriengtuntiwong

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: During pregnancy, mother will face many challenges in this time because so many things will change to their health, mental health, family and social. Result from these change lead pregnant woman to have mental illness both antepartum and postpartum period. Depression and poor sleep quality are common mental health problem during pregnancy, and these symptoms have effect to mother and child health. Brain-derived neurotrophic factor (BDNF) is one of the biomarkers that association with depression and sleep quality during pregnancy. Migrant people are risk group that will have treatment gap from Thailand health system. Samut Sakhon is the province …

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Impact Of Covid-19 Pandemic On The Mental Health Of Health Care Personnel From Government Hospitals In Yangon Region, Myanmar, Za Mae Nin Sar Aung Jan 2020

Impact Of Covid-19 Pandemic On The Mental Health Of Health Care Personnel From Government Hospitals In Yangon Region, Myanmar, Za Mae Nin Sar Aung

Chulalongkorn University Theses and Dissertations (Chula ETD)

The outbreak of COVID-19 has disastrously impacted on the human being resulting with a great number of deaths and somewhat negative mental health outcomes across the countries. A dramatic rise in transmission and death rate had profoundly hit Myanmar during the second wave especially in epicenter Yangon. The burden of managing COVID-19 have led the health care personnel (HCP) into both physical and mental exhaustion.This study intended to estimate mental health impact among HCP by quantifying the magnitude of symptoms of depression, anxiety, and stress and to determine associated factors. A cross-sectional, online based self-administered questionnaire was used to gather …

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Development Of Nutritionally Complete Oral Nutritional Supplement Using Tapioca Maltodextrin As A Carbohydrate Source, Junaida Astina Jan 2020

Development Of Nutritionally Complete Oral Nutritional Supplement Using Tapioca Maltodextrin As A Carbohydrate Source, Junaida Astina

Chulalongkorn University Theses and Dissertations (Chula ETD)

Carbohydrate is a major composition in oral nutrition supplement. Modification of carbohydrate composition using tapioca resistant maltodextrin (TRM) may improve the glycemic response. This study aimed to investigate the effect of TRM and TRM containing-ONS on glycemic response, satiety, and gastrointestinal (GI) tolerability in healthy individuals. Physicochemical properties and sensory evaluation of developed ONS were also investigated. In Phase I, the peak of plasma glucose and insulin response after TRM (50 g) ingestion was lowest compared to 50 g glucose (GL) and tapioca maltodextrin (TM) in 16 healthy participants. Peak of plasma glucose of TRM, GL, and TM were 104.60±2.63, …

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Protective Effects Of Tiger Milk Mushroom (Lignosus Rhinocerus) Extracts On Oxidative Stress-Induced Neurotoxicity And Aging In Ht22 Cells And C. Elegans, Parinee Kittimongkolsuk Jan 2020

Protective Effects Of Tiger Milk Mushroom (Lignosus Rhinocerus) Extracts On Oxidative Stress-Induced Neurotoxicity And Aging In Ht22 Cells And C. Elegans, Parinee Kittimongkolsuk

Chulalongkorn University Theses and Dissertations (Chula ETD)

Lignosus rhinocerus (LR) or Tiger Milk Mushroom, a fork medicinal mushroom, has been reported for several pharmacological effects including asthma treatment, anti-inflammatory, anti-proliferative, immuno-modulating effects, promote neurite outgrowth in PC-12 cells, anti-HIV-1 activity, and antioxidants properties. However, the antioxidant properties have only focus on in vitro and no or few studies have reported their protective effects in mouse hippocampal (HT22) cells and Caenorhabditis elegans (C. elegans). This study aims to investigate the neuroprotective effect of three extracts of LR against oxidative stress in both HT22 cells and. C. elegans as well as longevity in C. elegans. In HT22 cells, we …

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Maternal Knowledge, Attitude And Practices On The Dietary Omega 3 And 6 In Children Aged 1-2 Years Old In Labuhanbatu Utara Regency, Indonesia, Sinar Yunita Purba Jan 2020

Maternal Knowledge, Attitude And Practices On The Dietary Omega 3 And 6 In Children Aged 1-2 Years Old In Labuhanbatu Utara Regency, Indonesia, Sinar Yunita Purba

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Indonesia is one of the countries with low quality human resources including the issue on cognitive performances from brain functioning creativity. In the effort to fulfil Omega 3 and 6 in children aged 1-2 years, the most responsible person to the period are mothers. Therefore, the study aimed to determine the level of maternal knowledge, attitude, and practices and factors associated with the dietary omega 3 and 6 consumption in children aged 1-2 years old in Labuhanbatu Utara, Indonesia. Method: This cross-sectional study was conducted among 428 mothers of children aged 1-2 years using a face-to-face interview with a …

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The Inhibitory Effects Of Anthocyanin-Rich Thai Berry Extracts On Carbohydrate Digestion, Glycation And Adipogenesis, Pattamaporn Aksornchu Jan 2020

The Inhibitory Effects Of Anthocyanin-Rich Thai Berry Extracts On Carbohydrate Digestion, Glycation And Adipogenesis, Pattamaporn Aksornchu

Chulalongkorn University Theses and Dissertations (Chula ETD)

Several studies have reported the benefits of anthocyanin-rich berries on improving human health. However, the effect of Thai berries on delaying carbohydrate digestion, antioxidant properties, glycation inhibition, and anti-adipogenesis have not been investigated. Therefore, the present study aimed to determine the potential of anthocyanin-rich Thai berry extracts from Antidesma bunius or Mamao (ABE), Lepisanthes rubiginosa or Mahuat (LRE) and Syzygium nervosum or Makiang (SNE) on the inhibition of carbohydrate digestive enzymes, the antioxidant activity, anti-glycation, and anti-adipogenic property. In this study, total phenolics, total anthocyanins, and cyanidin-3-glucoside (C3G) contents of the anthocyanin-rich Thai berry extracts were 237.90-300.91 mg GAE/ g …

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Effect Of Rd43 Rice (Oryza Sativa L.) On Starch Digestibility, Physicochemical Properties, Glycemic Responses And Food Applications, Phim On Suklaew Jan 2020

Effect Of Rd43 Rice (Oryza Sativa L.) On Starch Digestibility, Physicochemical Properties, Glycemic Responses And Food Applications, Phim On Suklaew

Chulalongkorn University Theses and Dissertations (Chula ETD)

RD43 rice (Oryza sativa L.) is a cross-breed between Khao Jow Hawm Suphan Buri and Supan Buri1. It is characterized as a low amylose content, soft texture, and mild fragrance. However, its potential of metabolic health effect and food application remains unknown. In the present study, daily consumption of RD43 rice containing 14.10 g of undigestible starch for 12 weeks showed a significant reduction in fasting plasma glucose, insulin, HbA1c, and HOMA-IR in prediabetic participants. Furthermore, a significant decrease in body composition including body weight, body mass index, total body fat, and waist circumference was observed after the consumption of …

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Development Of A Device To Alert For Breaks To Prevent Musculoskeletal Disorders In The Neck And Low Back Among Office Workers, Pooriput Waongenngarm Jan 2020

Development Of A Device To Alert For Breaks To Prevent Musculoskeletal Disorders In The Neck And Low Back Among Office Workers, Pooriput Waongenngarm

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objective of this thesis was to develop a device to alert for breaks to prevent musculoskeletal disorders in the neck and low back among office workers. This thesis was divided into four stages: 1) systematically review to gain insights into the effectiveness of breaks on low back pain, discomfort, and work productivity in office workers; 2) evaluation of the characteristics of perceived discomfort and postural shifts during a 4-hour sitting period; 3) evaluation of the effects of a device to alert for active breaks on preventing neck and low back pain among office workers: 6- and 12-month follow-up; and …

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Relationships Between Language Proficiency And Economic Mobility Of Myanmar Migrant Workers In Bangkok, Aung Ko Min Jan 2020

Relationships Between Language Proficiency And Economic Mobility Of Myanmar Migrant Workers In Bangkok, Aung Ko Min

Chulalongkorn University Theses and Dissertations (Chula ETD)

Thailand has been the recipient of foreign migrant workers from neighboring countries for decades. Among them, the majority are from Myanmar. Myanmar migrant workers have been significant parts of the agriculture, manufacturing, and service sectors. In Thailand, they usually earn decent wages comparing to wages in their home countries. However, their incomes and working conditions in Thailand largely depend on several factors. Thus, this research aims to study the relationship between Thai language proficiency and the income of Myanmar migrants in Bangkok. Several studies claim that the employment opportunities of migrants depend primarily on their levels of education and technical …

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Adaptation Strategies For Survival Of Hotel Business Entrepreneurs In Chiang Mai To Covid-19 Situation In 2020, Priya Paepuang Jan 2020

Adaptation Strategies For Survival Of Hotel Business Entrepreneurs In Chiang Mai To Covid-19 Situation In 2020, Priya Paepuang

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research aims to explore the adaptation strategies for the COVID-19 pandemic by hotel entrepreneurs in Chiang Mai. Data was mainly collected from 154 hotels categorized into 4 types by Department of Provincial Administration and Online Travel Agency (OTA). Data analysis was conducted through data collecting week-by-week from 1st February to 31st December 2020 and the relationship of measurements and adaptation indicators was diagrammed. Moreover, this research interviewed four entrepreneurs of hotel type 2 in two areas including Nimmanahaeminda Road and the Old town. There are three major findings: 1. The target group is different in different locations. For example, …

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Representations Of The Body In British Science-Fiction Novels From The Late Nineteenth To The Early Twentieth Century: A Study Of Edward Bulwer-Lytton's The Coming Race, H.G. Wells' The Time Machine And Aldous Huxley's Brave New World, Kornnop Jaroenvong Jan 2020

Representations Of The Body In British Science-Fiction Novels From The Late Nineteenth To The Early Twentieth Century: A Study Of Edward Bulwer-Lytton's The Coming Race, H.G. Wells' The Time Machine And Aldous Huxley's Brave New World, Kornnop Jaroenvong

Chulalongkorn University Theses and Dissertations (Chula ETD)

Many critics have suggested that most of the non-human characters in late-Victorian British science-fiction novels reflect social alienation and the cultural fear of physical, mental and moral degeneration. However, by relying on the concept of critical posthumanism in the twentieth and twenty-first centuries that attempts to debunk anthropocentrism and emphasise the significance of non-human otherness, this thesis studies representations of the body in three British science-fiction novels: Edward Bulwer-Lytton's The Coming Race (1871), H.G. Wells' The Time Machine (1895) and Aldous Huxley's Brave New World (1932), which provide speculative visions of what humans will be in the future. It demonstrates …

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The Use And Analysis Of Accounting And Non-Accounting Information In Equity-Based Crowdfunding, Aranya Narklor Jan 2020

The Use And Analysis Of Accounting And Non-Accounting Information In Equity-Based Crowdfunding, Aranya Narklor

Chulalongkorn University Theses and Dissertations (Chula ETD)

Equity-based crowdfunding (ECF) is a new funding source for Thai startups and small and medium enterprises (SMEs). However, there has been only one ECF fundraising success story in Thailand during the past three years. A mixed-method research approach is employed to investigate the use of accounting and non-accounting information in the Thai ECF setting. The findings show that the most important information is the business model. The majority of participants focus on estimated revenue & cost and estimated cash flow. They pay a great deal of attention to non-accounting information, which is product/service characteristics and market potential. These results can …

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Comparative Study Of Tensile Bond Strength Between Resin Cements And Hybrid Materials, Chakriya Donpinprai Jan 2020

Comparative Study Of Tensile Bond Strength Between Resin Cements And Hybrid Materials, Chakriya Donpinprai

Chulalongkorn University Theses and Dissertations (Chula ETD)

Purpose: To compare tensile bond strength among the hybrid materials (VITA ENAMIC®, SHOFU Block HC, Katana AVENCIA and Experimental material) using two primers (Universal ceramic primer and RelyX ceramic primer) and two resin cements (Super-Bond C&B and RelyXTM U200). Methods: Twenty blocks of 4×4×1 mm3 were prepared from each material type. In VITA ENAMIC® group, specimens were conditioned with 5% Hydrofluoric acid and primer. In SHOFU Block HC and Katana AVENCIA groups, specimens were treated with 50µm alumina and primer. In experimental material, specimens were etched with 65% Phosphoric acid. Ten specimens were randomly assigned to each group for different …

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Treatment Effects Of Amitriptyline On Pain Symptoms, Quality Of Life And Heart Rate Variability In Burning Mouth Syndrome Patients, Chanida Chaiworn Jan 2020

Treatment Effects Of Amitriptyline On Pain Symptoms, Quality Of Life And Heart Rate Variability In Burning Mouth Syndrome Patients, Chanida Chaiworn

Chulalongkorn University Theses and Dissertations (Chula ETD)

The objectives of this research project were 1) To evaluate the effectiveness of amitriptyline therapy on improving pain and the oral health-related quality of life (OHRQoL) in BMS patients when compared to palliative topical therapies (sodium bicarbonate mouthwash). 2) To determine the association between therapy of amitriptyline and heart rate variability (HRV) parameters. 3) To assess the association between pain outcomes and fluctuations in HRV parameters. This project was composed of a retrospective and a prospective study, and subjects were primary BMS patients recruited at the Oral Medicine Clinic, Faculty of Dentistry, In the retrospective study, 20 female participants were …

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The Effectiveness Of Led Toothbrush In Reducing Dental Plaque And Gingivitis In Fixed Orthodontic Patients: A Randomized Clinical Trials, Chavirakarn Manphibool Jan 2020

The Effectiveness Of Led Toothbrush In Reducing Dental Plaque And Gingivitis In Fixed Orthodontic Patients: A Randomized Clinical Trials, Chavirakarn Manphibool

Chulalongkorn University Theses and Dissertations (Chula ETD)

Objective: To compare the effectiveness of LED toothbrush to manual toothbrush in reducing dental plaque and gingival inflammation in fixed orthodontic patients, and to investigate the effect of duration of LED toothbrush exposed to the S.mutans biofilm in vitro. Materials and methods: Fifteen fixed orthodontic patients were recruited to this parallel-group analysis. The patients were randomly divided into 2 groups relying on brushing methods: manual toothbrush and LED toothbrush. Plaque index and gingival index were examined by a calibrated-blinded examiner at baseline and 28 days after brushing period. In vitro part, the S. mutans biofilms were assigned to 5 groups …

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Analysis Of Chewing Efficiency In Dementia Patients Using Two-Color Chewing Gum Test And The Viewgum Software, Chawisa Thangjittiporn Jan 2020

Analysis Of Chewing Efficiency In Dementia Patients Using Two-Color Chewing Gum Test And The Viewgum Software, Chawisa Thangjittiporn

Chulalongkorn University Theses and Dissertations (Chula ETD)

The purpose of this study was to analyze the relationship between chewing efficacy and severity level of cognitive impairment in dementia patients using a smartphone with ViewGum software for chewing efficiency analysis. Participants (n=70) from the Dementia Clinic, King Chulalongkorn Memorial Hospital, included 38 dementia patients (76.1±9.0 years) and 32 patients (71.8±9.9Years) with mild cognitive impairment (MCI), diagnosed by the medical specialists. The cognitive impairment was assessed by the TMSE (Thai Mental State Examination), and then scored. Participants were assessed for chewing efficacy using the mixing ability test of the two-color chewing gum, followed by an analysis using the ViewGum …

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Biological Effects Of Epigallocatechin Gallate During The Protection Of The Submandibular Gland After Injury, Erni Sulistiyani Jan 2020

Biological Effects Of Epigallocatechin Gallate During The Protection Of The Submandibular Gland After Injury, Erni Sulistiyani

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: When radiotherapy is delivered to head and neck cancer (HNC) patients, the salivary gland (SG) secretory epithelia can be irreversibly injured in up to 60% of the individuals, leading to dry mouth or xerostomia. Radiotherapy’s effectiveness in suppressing HNC growth is correlated with an increase in free radicals that produce DNA damage to the tumor and neighboring organs like the SG. Epigallocatechin gallate (EGCG) is one of the most abundant polyphenols present in green tea leaves and a well-known antioxidant. In previous in vitro study using genetically modified immortal SG cell lines, EGCG protected SG cells from γ-radiation. However, …

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Development Of Measurement Scales Of Consumer-Based Brand Equity For Small And Medium Enterprises, Nitcha Chokpitakkul Jan 2020

Development Of Measurement Scales Of Consumer-Based Brand Equity For Small And Medium Enterprises, Nitcha Chokpitakkul

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study had two research objectives: (1) to develop and validate a generalizable model for measuring consumer-based brand equity within the SME setting, and (2) to examine the relationship between SME brand equity and consumer response factors. Three steps were conducted in sequence to achieve the research purposes. Firstly, qualitative data from documents of forty awarded SME brands and actual consumers varying in their demographic characteristics were collected by three techniques including document analysis, semi-structured interview, and focus group to get a pool of 41 initial items of SME brand equity. Secondly, the items derived from the first step were …

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Histone Deacetylase Inhibitor Induces The Odontogenic Differentiation In Human Dental Pulp Cells: Comparison Of Trichostatin A (Tsa) And Suberoylanilide Hydroxamic Acid (Saha), Indrani Sulistyowati Jan 2020

Histone Deacetylase Inhibitor Induces The Odontogenic Differentiation In Human Dental Pulp Cells: Comparison Of Trichostatin A (Tsa) And Suberoylanilide Hydroxamic Acid (Saha), Indrani Sulistyowati

Chulalongkorn University Theses and Dissertations (Chula ETD)

Human dental pulp cells (hDPCs) have shown their plasticity to differentiate into odontoblast-like cell lineages under the treatment of two-members of hydroxamates HDAC inhibitors (HDACis), Trichostatin A (TSA) and Suberoylanilide hydroxamic acid (SAHA). However, a comparison of the potency for stimulating odontoblast-like differentiation and mineralization process among these two HDACis has not been reported. Therefore, we aimed to confirm and compare the stimulatory effect of TSA and SAHA in inducing odontoblast-like differentiation and promoting mineralized-nodule formation. The primary cultured hDPCs was used for MTT assay, ALP activity assay, and alizarin red staining in the presence and absence of TSA and …

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Gene Expression And Immunohistochemistry Analysis Of Xenograft And Allograft In Maxillary Sinus Floor Augmentation, Isaya Kungvarnchaikul Jan 2020

Gene Expression And Immunohistochemistry Analysis Of Xenograft And Allograft In Maxillary Sinus Floor Augmentation, Isaya Kungvarnchaikul

Chulalongkorn University Theses and Dissertations (Chula ETD)

Quality of bone is an important factor contributing to the success of dental implants. The bone height in maxillary posterior area sometimes is not enough and might pose risks for placing dental implants. Maxillary sinus augmentation with bone substitutes is used for filling and correcting bony defects. This study aims to determine the differences in gene expressions of TNF-alpha, RUNX2, COL1A1, ALP between xenograft (Bio-Oss®) and allograft (SureOss®). Patients who needed two-stage maxillary sinus floor augmentation were included (n=13). Patient who had dental implant at posterior maxilla without bone substitutes was also used in immunohistochemistry analysis (IHC) (n=1). Bone samples …

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Effect Of Deep Margin Elevation With Resin Composite And Resin-Modified Glass Ionomer On Marginal Sealing Of Cad/Cam Ceramic Inlays: An In Vitro Study, Jaraswan Vichitgomen Jan 2020

Effect Of Deep Margin Elevation With Resin Composite And Resin-Modified Glass Ionomer On Marginal Sealing Of Cad/Cam Ceramic Inlays: An In Vitro Study, Jaraswan Vichitgomen

Chulalongkorn University Theses and Dissertations (Chula ETD)

Purpose. To evaluate the marginal sealing ability of different restorative materials used in deep margin elevation (DME) on zirconia-reinforced lithium silicate CAD/CAM ceramic restoration. Methods. A total of 30 Class II cavities were prepared in freshly extracted human molars with the proximal gingival margin located 1 mm below the cemento-enamel junction (CEJ). All specimens were randomly assigned to one of three groups (n=10): control group, resin composite group (FiltekTM Z350 XT), and resin-modified glass ionomer group (VitremerTM Tricure). In group 1, control group, no DME was performed. The inlay margin of the control group was placed directly onto dentin. In …

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The Immunomodulatory Roles Of Supracrestal Gingival Connective Tissue-Derived Human Mesenchymal Stromal Cells In The Polarization Of Macrophages, Jirawit Inthayat Jan 2020

The Immunomodulatory Roles Of Supracrestal Gingival Connective Tissue-Derived Human Mesenchymal Stromal Cells In The Polarization Of Macrophages, Jirawit Inthayat

Chulalongkorn University Theses and Dissertations (Chula ETD)

MSCs exert their immunomodulatory effects on various immune cells by cell-cell contact and cytokines secretion. Our previous study has demonstrated that supracrestal gingival connective tissue-derived mesenchymal stem cells (SG-MSCs) were recognized to be a good candidate for periodontal regeneration. SG-MSCs showed the similar potential to PDL-MSCs and held significant advantage over PDL-MSCs by which a tooth extraction is not required. In terms of immunomodulatory properties, the effect of SG-MSCs on macrophage has never been explored. This study was aimed to investigate the effects of SG-MSCs on macrophages by cocultured SG-MSCs and THP-1-derived macrophages (THP-1-MPs) in direct cell-cell contact condition. Briefly, …

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Effect Of Trehalose Solution Spray On Post-Radiation Xerostomia Related Quality Of Life In Head And Neck Cancer Patients, Kulpriya Pravinvongvuthi Jan 2020

Effect Of Trehalose Solution Spray On Post-Radiation Xerostomia Related Quality Of Life In Head And Neck Cancer Patients, Kulpriya Pravinvongvuthi

Chulalongkorn University Theses and Dissertations (Chula ETD)

Radiotherapy is the standard treatment of head and neck cancer (HNC). The radiation may affect on normal tissue and surrounding salivary gland resulting to xerostomia. Treatment of radiation-related xerostomia focuses on relieving symptoms by using saliva substitutes or saliva stimulants. Because the salivary stimulants have significant side effects, such as sweating, dizziness or increasing urge to urinate, saliva substitutes are preferable. Trehalose solution has been suggested for improve moisture in dry mouth condition and can be used as saliva substitute. The purpose of this study is to evaluate the effectiveness of 10% Trehalose solution spray to improve dry mouth condition …

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The Effect Of Laser Power On Mechanical And Physical Properties Of Ti-6al-4v Eli Fabricated By Selective Laser Melting, Pajaree Termrungruanglert Jan 2020

The Effect Of Laser Power On Mechanical And Physical Properties Of Ti-6al-4v Eli Fabricated By Selective Laser Melting, Pajaree Termrungruanglert

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study aimed to examine the differences in mechanical and physical properties of Ti-6Al-4V extra low interstitial (ELI) fabricated by selective laser melting (SLM) between different laser power. The Ti-6Al-4V ELI alloy samples were printed in dumbbell shape by SLM machine (Trumpf/TruPrint 1000, Germany) with 3 laser powers (75, 100 and 125 W), 8 samples for each group. And the other parameters (spot size 30 µm, scanning speed 600 mm/s, layer thickness 30 µm) were kept constantly. All samples were performed under tensile test with universal testing machine. Moreover, The microhardness test was performed. All data were statistically analyzed with …

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