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Publication Open Access Effects of disinfection procedures on surface quality of compound impressions and the resultant gypsum casts.(2014-01) Potchaman Sinavarat; พจมาน ศรีนวรัตน์; Saysana Visayrath; Potchaman Sinavarat; พจมาน ศรีนวรัตน์; Mahidol University. Faculty of Dentistry. Department of ProsthodonticsObjective: To evaluate the effects of disinfection procedures on the detail reproduction of type I impression compound and the surface quality of the gypsum casts poured against the disinfected impressions. Materials and methods: To make...-disinfected impressions served as controls. Each impression was visually evaluated for detail reproduction before and after disinfection and then poured with Type III dental stone. The resultant stone casts were evaluated for detail reproduction. To assessPublication Open Access Maintenance of peri-abutment skin interface in implant retained facial prosthesis : A Technical report case.(2015-05) Bharat Mirchandani; Binit Shrestha; บินิท เชรทรา; Sita Thaworanunta; สิตา ถาวรนันท์; M.L. Theerathavaj Srithavaj; ธีรธวัช ศรีธวัช; Mahidol University. Faculty of Dentistry. Maxillofacial Prosthetics Serviceof the aesthetics, improvement of the easy and accuracy of prosthesis placement, an increase in the life span of the facial restoration. Nonetheless, the implant retained prosthesis requires additional hygiene procedures to keep the prosthesis, retentive... of implant retained facial prosthesis patient’s compliance for additional hygiene procedures are required to keep prosthesis, retentive components and the skin healthy. A hygiene protocol has been described to accomplish the described goals.Publication Open Access The anesthesia efficacy of intraosseous injection with QuickSleeper® and conventional injection in the lower third molar surgery.(2013-09) Sirichai Kiattavorncharoen; ศิริชัย เกียรติถาวรเจริญ; Pattamawan Manosuthi; ปัทมวรรณ มโนสุทธิ; Natthamet Wongsirichat; ณัฐเมศร์ วงศ์สิริฉัตร; Kiatanant Boonsiriseth; เกียรติอนันต์ บุญศิริเศรษฐ; Natthamet Wongsirichat; ณัฐเมศร์ วงศ์สิริฉัตร; Kiatanant Boonsiriseth; เกียรติอนันต์ บุญศิริเศรษฐ; Mahidol University. Faculty of Dentistry. Department of Oral & Maxillofacial Surgeryand 14 males with age range 20-25 years (mean age of 21 years). The subjects underwent a total of 52 anesthetic procedures. Each patient was subjected to two anesthetic techniques :conventional injection and intraosseous injection using the QuickPublication Open Access Prediction of difficulty in impacted lower third molars extraction; review literature.(2015-09) Latt, Maung Maung; Pruedy Chewpreecha; พฤทธิ์ ชิวปรีชา; Natthamet Wongsirichat; ณัฐเมศร์ วงศ์สิริฉัตร; Natthamet Wongsirichat; ณัฐเมศร์ วงศ์สิริฉัตร; Mahidol University. Faculty of Dentistry. Department of Oral and Maxillofacial SurgerySurgical removal of impacted mandibular third molars can present with certain post-operative complications such as pain, swelling and trismus although the removal of these teeth is common minor surgical procedure. This review is intended to knowPublication Open Access Betamethasone and methylprednisolone usage in lower third molar surgery : Review literature.(2015-09) Sirichai Kiattavornchareon; ศิริชัย เกียรติถาวรเจริญ; Gozali, Peiter; Wu, Michiko; Natthamet Wongsirichat; ณัฐเมศร์ วงศ์สิริฉัตร; Suphachai Suphangul; ศุภชัย สุพรรณกุล; Natthamet Wongsirichat; ณัฐเมศร์ วงศ์สิริฉัตร; Mahidol University. Faculty of Dentistry. Department of Oral and Maxillofacial Surgery; Mahidol University. Faculty of Dentistry. Advance General dentistry DepartmentThe surgical extraction of lower third molar is the most frequent intervention in oral surgery. This procedure is often associated with significant postoperative sequalae that may have both a biological and social impact. Beside severe complicationsPublication Open Access Prosthetic rehabilitation of orbital defects: A review of 110 cases.(2014-09) Sita Thaworanunta; สิตา ถาวรนันท์; Theerathavaj Srithavaj; ธีรธวัช ศรีธวัช; Shrestha, Binit; Shrestha, Binit; Mhidol University. Faculty of Dentistry. Department of ProsthodonticsObjective: Debilitating orbital defects can arise as a part of tumor management, trauma, and congenital malformations. Due to limitations in surgical reconstruction, ideal aesthetic results may not be achieved. The reconstruction of orbital defects mostly comprises of placement of a skin graft or rotational flaps to close the area. Facial prosthesis is a preferred alternative, where a more controllable and predictable aesthetic outcome can be obtained. Materials and methods: In this retrospective study, a group of 110 patients who had been rehabilitated with silicone orbital prostheses in the Maxillofacial Prosthetic Service, Mahidol University between 2000-2011 was taken into consideration. The most common defect etiologies, surgical and prosthetic treatment employed, and frequently encountered problems following rehabilitation were evaluated. Results: Out of 98 patients eligible for the study, 88 patients were treated with adhesive retained prostheses and 10 were treated with implant-retained prostheses. The etiologies that resulted in orbital defects were tumor (86.7%), fungal infection (7.1%) and trauma (6.1%). Tumors with the highest incidence were retinoblastoma (29.4%), squamous cell carcinoma (25.9%), adenocystic carcinoma (11.8%), and others such as basal cell carcinoma, malignant melanoma, etc. Orbital defects established following removal of the tumor by exenteration (71.4%), enucleation (24.5%), and trauma (4.1%). Commonly encountered problems after rehabilitation were discoloration of the prosthesis, open or torn margins, and acrylic housing dislodgment. Conclusion: The use of silicone prosthesis can be a safe, predictable and aesthetic treatment option for rehabilitation of orbital defects. However, focus on patient awareness, early detection, and intervention should be emphasized so that the individuals can be spared from these debilitating conditions.Publication Open Access Dabigatran: A new oral anticoagulant(2015-01) Sirada Srihirun; สิรดา ศรีหิรัญ; Nathawut Sibmooh; ณัฐวุธ สิบหมู่; Sirada Srihirun; สิรดา ศรีหิรัญ; Mahidol University. Faculty of Dentistry. Department of Pharmacology; Mahidol University. Faculty of Science. Department of Pharmacologytooth extractions are minor surgery done at outpatient unit, patients with high risk of hemorrhage must be carefully assessed with proper dental management. This article describes pharmacological properties of dabigatran including discovery..., pharmacokinetics, pharmacodynamics, clinical trials, and adverse effects. In addition, the suggestion for dental management of patients being treated with dabigatran has been stated.Publication Open Access Short-term evaluation of mini-implant retained removable partial denture.(2014-09) Chatchai Kunavisarut; ชัชชัย คุณาวิศรุต; Russami Kumpirichaya; รัศมี คัมภีริชยา; Chatchai Kunavisarut; ชัชชัย คุณาวิศรุต; Mahidol University. Faculty of Dentistry. Department of Advanced General Dentistryroutine procedure.Publication Open Access Effect of irrigation times of sodium ascorbate on bond strengths to bleached enamel using two adhesive systems.(2014-01) Chitvaree Leetrakulwanna; ชิตวรี ลีตระกูลวรรณา; Nataya Vongphan; นาฎยา วงษ์ปาน; Pisol Senawongse; พิศลย์ เสนาวงษ์; Choltacha Harnirattisai; ชลธชา ห้านิรัติศัย; Nataya Vongphan; Mahidol University. Faculty of Dentistry. Department of Operative Dentistry and EndodonticsObjectives: To evaluate the effect of different irrigation times of 10% sodium ascorbate on microshear bond strengths of two adhesives: Adper™ Single Bond 2 and Clearfil SE Bond, to enamel bleached with 10% carbamide peroxide. Materials and methods: Sixty sound human premolars were divided into 5 groups regarding to treatment of facial enamel surfaces: 1 no treatment (unbleached enamel), 2 bleached with 10% carbamide peroxide (VivaStyle 10%), the other three groups were bleached and followed by irrigation with 10% sodium ascorbate for 30 sec, 1 min and 10 min respectively. Enamel surface of all specimens were bonded with one of the two adhesives and then restored with a resin composite. The microshear bond strength testing was performed using a universal testing machine at a crosshead speed of 1 mm/min after storage in distilled water at 37°C for 24 hours. The data were analyzed using two-way ANOVA and post-hoc multiple range test (p<0.05). Results: Irrigation with sodium ascorbate for 10 min could reverse the bond strength of bleached enamel in group using AdperTM Single Bond 2 to the same level as that of the control group (p<0.05). However, irrigation with sodium ascorbate had no effect on the bond strength of bleached enamel bonded with Clearfil SE Bond. Conclusion: Pretreatment with sodium ascorbate for 10 min before composite restoration improved the bond strengths of bleached enamel when AdperTM Single Bond 2 was used.Publication Open Access Effects of orthognathic surgery on pharyngeal airway space: A literature review(2014-05) Nguyen, Minh Truong; Surakit Visuttiwattanakorn; สุรกิจ วิสุทธิวัฒนากร; Truong, Dung Manh; Natthamet Wongsirichat; ณัฐเมศร์ วงศ์สิริฉัตร; Surakit Visuttiwattanakorn; สุรกิจ วิสุทธิวัฒนากร; Mahidol University. Faculty of Dentistry. Department of Oral and Maxillofacial SurgeryPharyngeal airway changes after orthognathic surgery have been concerned because of the effects on breathing function of the patients. Moreover, sleep quality of patients can be improved or worsened by these changes. Obstructive sleep apnea is a disorder characterized by episode of pharyngeal airway collapse. It may be better following a maxillomandibular advancement surgery or may be worsened or developed after mandibular setback surgery. The purpose of this study is to review the changes of pharyngeal airway and its important related structure such as hyoid bone, the tongue and soft palate after orthognathic surgery in dentofacial deformity patients. The change of the head posture, the adaptation and the stability of the pharyngeal airway are also considered. Moderate evidence was found to support a significant decrease in the oropharyngeal airway after mandibular setback surgery. Bimaxillary surgery in class III patients has less unfavorable effects and should be considered when setback the mandible a large extent. Maxillomandibular advancement widens the airway in many levels and has high success rate in treatment of OSA.