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Publication Open Access Changes in the permeability and morphology of dentine surfaces after brushing with a Thai herbal toothpaste: A preliminary study.(2016-04) Suwanna Korsuwannawong; สุวรรณา ก่อสุวรรณวงศ์; Choltacha Harnirattisai; ชลธชา ห้านิรัติศัย; Chayada Teinchai; ชญาดา เทียนไชย; La‑ongthong Vajrabhaya; ละอองทอง วัชราภัย; La‑ongthong Vajrabhaya; ละอองทอง วัชราภัย; Mahidol University. Faculty of Dentistry. Research Office; Mahidol University. Faculty of Dentistry. Department of Operative Dentistry and Endodontics(AS) immersion or citric acid challenge. MATERIALS AND METHODS: Dentine discs from human mandibular third molars were divided into three groups (n = 20) and brushed with either experimental toothpaste or water (control) for 2 min with an automated toothbrushPublication Open Access Investigation of basement membrane proteins in a case of granular cell ameloblastoma.(2012-03) Puangwan Lapthanasupkul; พวงวรรณ ลาภธนทรัพย์กุล; Sopee Poomsawat; โสภี ภูมิสวัสดิ์; Jira Chindasombatjaroen; จิรา จินดาสมบัติเจริญ; Sopee Poomsawat; Mahidol University. Faculty of Dentistry. Department of Oral and Maxillofacial Pathology; Mahidol University. Faculty of Dentistry. Department of Oral and Maxillofacial RadiologyGranular cell ameloblastoma is a rare, benign neoplasm of the odontogenic epithelium. A case of massive granular cell ameloblastoma in a 44-year-old Thai female is reported. Histopathological features displayed a follicular type of ameloblastoma... with an accumulation of granular cells residing within the tumor follicles. After treatment by partial mandibulectomy, the patient showed a good prognosis without recurrence in a 2-year follow-up. To characterize the granular cells in ameloblastoma, we examinedPublication Open Access The removal of colors in non-carbonated soft drinks using granular activated carbon for coliform bacteria detection by sanitary indicator medium(2009) Vatanasomboon, P; Pisit Vatanasomboon; Rojanavipart, P; Piangchan Rojanavipart; Luksamijarulkul, P; Pipat Luksamijarulkul; พิศิษฐ์ วัฒนสมบูรณ์; เพียงจันทร์ โรจนวิภาต; พิพัฒน์ ลักษมีจรัลกุล; Srisantisang, N; Mahidol University. Faculty of Public Health. Department of Environmental Health Science; Mahidol University. Faculty of Public Health. Department of Biostatistics; Mahidol University. Faculty of Public Health. Department of MicrobiologyThis research was designed to study the efficiency of non-carbonated soft drink color removal by using granular activated carbon (GAC) for coliform bacteria detection by SI medium. The conditions established in the study were to use 6 color tonesPublication Open Access Formulation of Sustained release mosqutito larvicidal preparations from bacillus sphaericus(1993) Ruedee Saowakonth; Yupin Rungvejhavuttivittay; Narong Sarisuta; Suthin Siripraiwan; Puangpen Suyanandana; Mahidol Univesity. Faculty of Pharmacy. Department of Manufacturing PharmacyPublication Open Access Prevalence and histopathology of Trichogaster pectoralis harbouring metacercaria of Clinostomum piscidium (Southwell and Prashad, 1918) in central Thailand(2014) Tawewan Tansatit; Prasert Sobhon; Somphong Sahaphong; Panpanga Sangsuriya; Suriyo Klinsrithong; Mahidol University. Faculty of Veterinary Science. Departments of Preclinic and Applied Animal Science.; Mahidol University. Faculty of Science. Department of Anatomy; Mahidol University. Faculty of Science. Department of Pathobiologyof lymphocytes, eosinophilic granular cells and fibroblasts. Eosinophils were in close contact with the fluke’s tegument. The infection with this metacercaria caused hepatic tissue damage which, in turn, interrupted the hepatic metabolism, causing growthPublication Open Access The incidence of oro-maxillofacial lesions (10 years) in the department of oral and maxillofacial surgery, Mahidol University: Ameloblastoma(2015-01) Kiatanant Boonsiriseth; เกียรติอนันต์ บุญศิริเศรษฐ; Sirichai Kiattavorncharoen; ศิริชัย เกียรติถาวรเจริญ; Arada Thungrat; อารดา ถึงรัตน์; Natthamet Wongsirichat; ณัฐเมศร์ วงศ์สิริฉัตร; Natthamet Wongsirichat; ณัฐเมศร์ วงศ์สิริฉัตร; Mahidol University. Faculty of Dentistry. Department of Oral & Maxillofacial SurgeryObjective: To study incidence of ameloblastoma at the Oral and Maxillofacial Surgery Clinic, Mahidol University by analyzing patients’ pathological records for clinical, radiographic, and histological features from 2003 to 2012 Methods and methods: In this 10-year retrospective study, 88 histopathological records of patients with ameloblastoma treated at the Oral and Maxillofacial Surgery Clinic, Department of Oral and Maxillofacial Surgery, Mahidol University were selected. The records were analyzed for demographic data, chief complaint, site of lesion, clinical, radiographic, and histologic features to determine the incidence of ameloblastoma. Results: The overall incidence of ameloblastoma was 4.49% (88/1962 records). The age range of the patients with ameloblastoma was 8 and 81 years, with a mean age of 38 years. Ameloblastoma occurred more in males (56.82%) than females (43.18%). More than half of the patients (56.81%; 50 cases) presented with painless swellings. The mandible accounted for 88% (78 cases) of all the ameloblastoma. Most radiographs showed multilocular radiolucent lesions (60.23%; 53 cases). The most common histopathological features of ameloblastoma were mixed type (25%; 22 cases) and follicular type (23.86%; 21cases). Conclusions: This study showed 4.49% incidence of ameloblastoma. Most ameloblastoma occurred in males with a mean age of 38 years. The lesions often presented clinically as painless swellings and histologically exhibited mixed or follicular types.Publication Open Access Fast and Efficient Removal of Hexavalent Chromium from Water by Iron Oxide Particles(2018) Duangta Kitkaew; Athit Phetrak; Sumate Ampawong; Rachaneekorn Mingkhwan; Doungkamon Phihusut; Kamolnetr Okanurak; Chongrak Polprasert; Mahidol University. Faculty of Public Health. Department of Sanitary Engineering; Mahidol University. Center of Excellence on Environmental Health and Toxicology (EHT); Mahidol University. Faculty of Tropical Medicine. Department of Social and Environmental Medicine; Mahidol University. Faculty of Tropical Medicine. Department of Tropical Pathology; Chulalongkorn University. Environmental Research Institute; Thammasat University. Faculty of Engineering. Department of Civil EngineeringIron oxide particles (IOPs) were synthesized by chemical co-precipitation technique and further used as an adsorbent in removing hexavalent chromium (Cr(VI)) from aqueous solutions during batch adsorption. The IOP adsorbent had specific surface area of 65 m2/g, total pore volume of 0.25 cm3/g and mostly contained a mesoporous structure. The analysis of scanning and transmission electron microscopy indicated that the adsorbent contained a substantial amount of iron oxide of about 66%, which was well distributed throughout the adsorbent. The IOP adsorbent showed a rapid and efficient Cr(VI) removal that followed Langmuir adsorption isotherm model with maximum adsorption capacity of 2.39 mg-Cr(VI)/g-IOP, demonstrating a monolayer formation on the adsorptive sites of IOP. The kinetic adsorption of Cr(VI) on the IOP followed the pseudo-second-order model, suggesting chemisorption. Thus, the IOP adsorbent provides a potentially effective technology in eliminating of Cr(VI) from water since it can remove appreciable amounts of Cr(VI) with a relatively short contact time of 30 min.Publication Open Access Lime and Lignite Fly Ash as Cement Replacement in Hazardous Waste Solidification Process: Case Study of Spent Fluorescent Lamp(2009-11) Petcharat Jekjuntuk; Chumporn Yuwaree; Gritsanaruk Theeraraj; Rungjarat Hutacharoen; ชุมพร ยุวรี; รุ่งจรัส หุตะเจริญ; กฤษณรักษ์ ธีรรัฐ; Mahidol Universityใ Faculty of Environment and Resource Studiestimes, whereas the density and the strength trend to decrease after 14 days. In consideration the properties of solidified sample and cost of solidifying material, a ratio of cement to lime to fly ash of 0:30:70 was found to be the most optimum ratioPublication Open Access Lime and Lignite Fly Ash as cement replacement in hazardous waste solidification process: Case study of spent fluorescent lamp(2009-12) Petcharat Jekjuntuk; Chumporn Yuwaree; Gritsanaruk Theeraraj; Rungjarat Hutacharoen; Jirapun Chotiratanarak; Mahidol University. Faculty of Environment and Natural Resource Studiestimes, whereas the density and the strength trend to decrease after 14 days. In consideration the properties of solidified sample and cost of solidifying material, a ratio of cement to lime to fly ash of 0:30:70 was found to be the most optimum ratioPublication Open Access Unit Cost Analysis for Health Academic and Operational Purposes(2020) Paneevon Palakawong Na Ayutthaya; Oraluck Pattanaprateep; Ammarin Thakkinstian; ภาณีวร ปาลกะวงศ์ ณ อยุธยา; อรลักษณ์ พัฒนาประทีป; อัมรินทร์ ทักขิญเสถียร; Mahidol University. Faculty of Medicine Ramathibodi Hospital. Department of Clinical Epidemiology and BiostatisticsBackground: Unit cost estimation is one of the key planning tasks of organisation in order to allocate resources to each activity properly. Therefore, this study was conducted applying top-down costing approach, for academic unit cost estimation. Objective: To estimate the unit costs using top-down allocation costing approach for academic and operational purposes of the Department of Clinical Epidemiology and Biostatistics (CEB) at Faculty of Medicine, Ramathibodi Hospital, Mahidol University. Methods: A cross-sectional study of the cost of CEB in fiscal year 2018 was retrieved. Direct and indirect costs were allocated to CEB based on 3 main missions (education, research, and academic services) considering staffs’ activities and time spent for each mission. Three cost per unit of measures (cost per student, cost per publication, and cost per research consultation) were estimated accordingly to these 3 main missions. Results: In the fiscal year 2018, direct and indirect costs were ฿15 178 761 and ฿737 496, respectively. As for staffs’ time spent for each mission activity, CEB mission costs were ฿6 807 282 for education (฿3 914 187 and ฿2 893 095 for MSc and PhD, respectively), ฿5 912 895 for research, and ฿2 186 280 for academic services. Conclusions: Unit cost should be estimated properly to minimise and optimally allocate resources to each activity. This study should be useful for other departments as a guideline for their cost management and resource planning.