This study was designed for comparison of shear bond strengths and failure patterns of four experimental groups which combinated mesh-backed metal brackets and texture based ceramic brackets (Transcend series 2000((TM))) with chemically cured resin (Mono Lok2((TM))) and visible light cured resin (Transbond((TM))). Brackets were bonded on the extracted human bicuspids, after etching them by manufacturer's recommand, and the shear bond strengths were measured on the Instron machine after 24 hrs passed in the 37degrees C water bath. The results were as follows. 1. Ceramic brackets, transcend series 2000((TM)), bonded with MonoLok2((TM)) showed statistically higher shear bond strength than mesh-backed metal brackets bonded with MonoLok2((TM)). 2. There was no significant difference in shear bond strengths between metal and ceramic brackets bonded with Transbond((TM)). 3. Ceramic brackets bonded with both Transbond((TM)) and MonoLok2((TM)) showed primarily fractures bet?ween brackets adhesive interface. 4. Enamel crack was not found in anyone specimen.
Adhesives ; Baths ; Bicuspid ; Ceramics* ; Dental Enamel ; Humans ; Light ; Water

No abstract available.
Carcinoma, Squamous Cell* ; Head* ; Neck* ; Neoplasm Metastasis*

No abstract available.
Antibodies* ; Coxiella burnetii* ; Coxiella* ; Prevalence*

No abstract available.
Humans

Aconite is a common remedy of herb doctors and is widely used in the Far East. Clinical aspects of the visual disturbance produced by this drug have been described, but little is known about its pathology. Tinctura aconiti (0.6 mg of total alkaloid/kg 2x) was administered intraperitoneally in rabbits to evaluate its toxic effects on the visual system. The alteration in the visual evoked potential following aconite injection consisted of a delay in the onset and peak latency. Histopathologically, there were damages to the myelin sheath of the visual pathway, spinal cord and peripheral nerves. These findings suggest that aconite may cause primarily myelo-optic neuropathy.
Aconitum/administration & dosage/*toxicity ; Animals ; Evoked Potentials, Visual/*drug effects ; Injections, Intraperitoneal ; Myelin Sheath/*drug effects/ultrastructure ; Optic Nerve/*drug effects/ultrastructure ; Optic Nerve Diseases/*chemically induced/pathology ; Rabbits ; Spinal Cord/*drug effects/ultrastructure

Interdigitating reticulum cell sarcoma is a neoplasm that shows differentiation similar to that of non-neoplastic interdigitating reticulum cells, which normally reside in the paracortical region of the lymph node. Interdigitating reticulum cell sarcoma is extremely rare and its definite identification requires a multiparameter study, including microscopic, enzymatic histochemical, immunophenotypic and molecular findings of the tumor cells. We report a case of interdigitating reticulum cell sarcoma in the right upper jugulodigastric lymph node of a 42-year-old male. The patient wad initially diagnosed as metastatic undifferentiated carcinoma, so we tried to find primary site but failed. The patient was treated by radiation therapy under the diagnosis of metastatic neck node. Two years later, the patient was finally diagnosed to interdigitating reticulum cell sarcoma by pathological review and immunohistochemical studies. The patient has been alive well at 55 month of follow-up.
Adult ; Carcinoma ; Diagnosis ; Follow-Up Studies ; Humans ; Lymph Nodes* ; Lymphoma, Non-Hodgkin* ; Male ; Neck ; Reticulum*

Acute motor and sensory axonal neuropathy (AMSAN) are recently described subtypes of Guillain-Barre syndrome characterized by acute onset of distal weakness, loss of deep tendon reflexes, and sensory symptoms. A 21-yr-old male was transferred to our hospital due to respiration difficulties and progressive weakness. In laboratory findings, immunoglobulin M antibodies against hepatitis A were detected in blood and cerebrospinal fluid. The findings of motor nerve conduction studies showed markedly reduced amplitudes of compound muscle action potentials in bilateral peroneal, and posterior tibial nerves, without evidence of demyelination. Based on clinical features, laboratory findings, and electrophysiologic investigation, the patient was diagnosed the AMSAN following acute hepatitis A viral infection. The patient was treated with intravenous immunoglobulin and recovered slowly. Clinicians should consider this rare but a serious case of AMSAN following acute hepatitis A infection.
Acute Disease ; Electromyography ; Guillain-Barre Syndrome/*diagnosis/drug therapy/etiology ; Hepatitis A/complications/*diagnosis ; Humans ; Immunoglobulins, Intravenous/therapeutic use ; Male ; Young Adult

No abstract available.
Catheters* ; Embolism, Air*

Thyrotoxic storm is an extreme state of thyrotoxicosis and a medical emergency. The clinical presentation of thyrotoxic storm includes tachycardia, fever, organ effect of central nervous system, cardiovascular system, and gastrointestinal system dysfunction. It usually occurs in patients with untreated or partially treated Graves' disease. Although it is rare, its mortality rate has reached 10-20%. There are no specific tests for establishing the diagnosis; it can only be diagnosed based on the clinical expression and laboratory results. Rapid diagnosis and treatment are necessary when it unexpectedly occurs during the perioperative period. We report a case of unnoticed hyperthyroidism that was diagnosed due to thyrotoxic storm-induced tachycardia in the post anesthesia care unit.
Anesthesia ; Cardiovascular System ; Central Nervous System ; Diagnosis ; Emergencies ; Fever ; Graves Disease ; Humans ; Hyperthyroidism ; Liver Transplantation ; Living Donors ; Mortality ; Perioperative Period ; Tachycardia* ; Thyroid Crisis* ; Thyrotoxicosis

Bone scan is one of the most frequently performed studies in nuclear medicine with few adverse reactions for the examination of pathologic conditions of bone. Diffuse liver uptake of Technetium-99m methylene diphosphonate (Tc-99m MDP) is a rare occurrence with only a few reports in the literature. Furthermore, there is no report of Tc-99m MDP-induced liver injury. Here we report a case of acute hepatitis with diffusely increased uptake of Tc-99m MDP in a hemodialysis patient.
Diphosphonates ; Hepatitis ; Humans ; Liver ; Nuclear Medicine ; Renal Dialysis ; Technetium Tc 99m Medronate