Objective To study the technique of using the postauricular revolving door island flap in one-stage reconstruction of concha defect and its efficacy.Methods Fifteen cases of concha de fect were repaired by the postauricular revolving door island flap in one stage reconstruction from 2000-2010.The maximum size of defect was 2.7 cm× 3.0 cm,and the minimum was 1.0 cm×1.3 cm.Results All the island flaps were survived postoperatively,and satisfactory in auricular appearances of all patients by 6 months to 5 years follow-up.Conclusions The revolving door island flaps with abundant blood supply are transferred to reach the auricular defect,which match normal auricular tissue in contour,color,and texture. This flap on the retroauricular area is relatively concealed,and it therefore can be one of the best procedures for repair of the auricular defects,especially concha.

Complex regional pain syndrome (CRPS) is a neuropathic pain disorder, characterized by persistent and severe pain after trauma or surgery. Diagnosis is mainly based on clinical signs and treatment is based on a multidisciplinary approaches, including non-pharmacological approaches and occupational therapy，pharmacotherapy and invasive therapeutics. This article reviewed the current advice of diagnosis and treatment of CRPS.

China ; Facial Injuries ; surgery ; Humans ; Mouth ; injuries ; Traumatology

Attention Deficit Disorder with Hyperactivity ; epidemiology ; Child ; Comorbidity ; Humans

China ; Fracture Fixation, Internal ; education ; Humans ; Maxillofacial Injuries ; therapy ; Societies, Medical ; Surgery, Oral ; education

Asparaginase ; adverse effects ; Child ; Child, Preschool ; Desensitization, Immunologic ; Drug Hypersensitivity ; therapy ; Female ; Humans ; Male ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; drug therapy

The interdisciplinary nature of health economics brings certain difficulty to the teaching of this course, so it is very important to rationally design and use case teaching. According to the characteristics of the course, this paper put forward design ideas from the guiding ideology, selec-tion, categories and forms. This paper argued that teacher should play a leading role and create a good learning environment and grasp four parts of the implementation.

BACKGROUND: Mineral trioxide aggregate (MTA) is a new inorganic trioxide polymer. Previous studies indicated that MTA as a root tip material had good edge closeness as compared to silver amalgam and vitreous enamel-cementum.OBJECTIVE: To study the effect of anti-micro-osmosis of metal dowel pins cemented by MTA.DESIGN: Comparative observational study.SETTING: Jingzhou Central Hospital of Hubei Province.MATERIALS: Thirty-two submaxilla first premolars which were pulled out by the orthodontic treatment in 2004 of the hospital were selected, of which teeth were intact, dental roots were stout, straight and unbroken. MTA was provided by Dentsply Co., USA; zinc phosphate cement by Shanghai Dentistry Material Station; glass ionomer cement by Shanghai Qingpu Dentistry Material Station; EB composite resin by the Fourth Military Medical University Oral Medical Hospital.METHODS: Having been filled by traditional technique, 32 fresh single-rooted permanent teeth were randomly divided into 4 groups and cemented in casting dowel pins separately with four cements-zinc phosphate cement, glass ionomer cement, EB composite resin and MTA groups with 8 in each group. And then the dye penetration method was used to test the micro-osmosis of these cements.MAIN OUTCOME MEASURES: Micro-osmosis of the four cements.RESULTS: MAT as a cement had the minimum micro-osmosis while zinc phosphate cement had the maximum osmosis. The depth of osmosis that ranked from minimum to maximum was MTA

HIV/AIDS has been circulating in China for over 25 year. While making progress and achievements on HIV/AIDS prevention, there still are great challenge and difficulties such as HIV epidemic controlling and vaccine research.

Attention Deficit Disorder with Hyperactivity ; diagnosis ; therapy ; Humans