No abstract available.
Enterococcus*

Removal of subgingival calculus is essential for the success in periodontal treatment. Subgingival instrumentation is used for the removal of all bacterial plaque and calculus. In this study, Gracey curet and Ultrasonic curet were used on single rooted teeth to conduct subgingival scaling and root planning. The remaining amount of calculus was evaluated according to type of instrument, depth of pocket, and tooth surface. 24 teeth were extracted from 14 patients being treated at department Periodontology Seoul Advantist dental hospital were used. Total 96 area(4 surface per teeth) were evaluated. 12 teeth treated with Gracey curet were used as the control group and the other 12 teeth treated with Ultrasonic curet were examined for experimental group. The 4 surfaces of the teeth(buccal, mesial, lingual or palatal, distal) were observed through the stereomicroscope and the images of the surface were captured and saved in CCD. The images were displayed on the monitor and the amount of calculus remained was evaluated by overlapping 10x10 grid pixel screen produced by Microsoft power point. The results evaluated were as follows 1. There was no statistically significant difference in residual calculus and tooth position following scaling and root planning of all group, but statistically significant correlation with residual calculus, probing depth, instruments and tooth surface. 2. There was statistically significant correlation between residual calculus and probing depth, but no statistically significant difference in residual calculus, tooth surface and tooth position on experimental(Ultrasonic curet) group. 3. There was no statistically significant difference in residual calculus according to the pre-treatment pocket depth and tooth position, but statistically significant correlation with tooth surface. The amount of residual calculus increase with mesial, distal, buccal and lingual(or palatal) surface on control(Gracey curet) group. 4. The Gracey curet showed better results than ultrasonic curet in mesial and distal surface, and there is significant difference. The results demonstrate that ultrasonic curet alone is inadequate for thorough subgingival debridement and suggest that Ultrasonic curet with Gracey curet should be more effective.
Calculi ; Debridement ; Dental Scaling* ; Humans ; Seoul ; Tooth ; Ultrasonics*

No abstract available.
Animals ; Linoleic Acid* ; Mice* ; Sarcoma 180* ; Sarcoma*

BACKGROUND: Using c-fos expression one of the immediate early gene, as a marker of altered neuronal response, we investigated the effect of superior cervical ganglion block (SCGB) exhibiting the same effect of SGB of human on the activity of several brain regions which are considered as located on autonomic neural pathway and neuroendocrine axis in rat. METHOD: The 48 Sprague-Dawley strain rats were divided into 4 groups, as saline/stress (control) group, SCGB/stress (tested) group, saline group, SCGB group. Superior cervical ganglion block was conducted in the SCGB/stress group and SCGB group while saline/stress and saline group were sham operated. After then restraint stress was imposed on the animals of SCGB/stress group and saline/stress group. And 2 hour after injection (saline, SCGB group) or restraint stress (saline/stress, SCGB/stress group), c-fos protein (Fos) was localized by immunocytochemistry. RESULTS: Much stronger Fos immunoreactivity was induced in the several brain region of control group rats compared to other three groups and the numbers of Fos positive cell count of tested group were significantly decreased in paraventricular hypothalamic nucleus (p<0.01), A5 (p<0.01), raphe pallidus (p<0.05), nucleus tractus solitaius (p<0.01) compared to control group. CONCLUSION: This study demonstrate that superior cervical ganglion block attenuates stress induced neuronal activities of paraventricular hypothalamic nucleus, A5, raphe pallidus, nucleus tractus solitarius.
Animals ; Axis, Cervical Vertebra ; Brain* ; Cell Count ; Genes, vif ; Humans ; Immunohistochemistry ; Neural Pathways ; Neurons ; Paraventricular Hypothalamic Nucleus ; Rats* ; Rats, Sprague-Dawley ; Solitary Nucleus ; Superior Cervical Ganglion*

This study describes an evaluation of the sonographic, cholangiographic, pathological, and immunological findings, and the protective effect shown by rats reinfected with Clonorchis sinensis. Eight experimental rat groups were, namely, a normal control, a primary infection control, a reinfection I (reinfection 7 week after treatment following 3-week infection), a reinfection II (reinfection 2 week after treatment following 8-week infection), a reinfection III (exploration of the intrahepatic bile ducts 1 week after reinfection 4 week after treatment following 4-week infection), a superinfection, a secondary infection control, and an infection following immunization group. Sonographic and cholangiographic findings showed moderate or marked dilatation of the bile duct confluence in the primary infection control, reinfection II, and secondary infection control groups. Juvenile worms survived in the intrahepatic bile ducts 1 week after reinfection following treatment in the reinfection III group. It was concluded that reinfecting juvenile worms found during the first week following reinfection failed to survive or grow further. Anatomical, pathophysiological, or immunological changes may induce protection from reinfection in rats.
Animals ; Anthelmintics/administration & dosage/therapeutic use ; Antibodies, Helminth/blood ; Antigens, Helminth/administration & dosage/immunology ; Bile Duct Diseases/parasitology/*pathology/ultrasonography ; Bile Ducts, Intrahepatic/parasitology/*pathology/ultrasonography ; Cholangiography ; Clonorchiasis/parasitology/*pathology/ultrasonography ; Clonorchis sinensis/*pathogenicity ; Immunization ; Praziquantel/administration & dosage/therapeutic use ; Rats ; Rats, Sprague-Dawley ; Sound Spectrography ; Support, Non-U.S. Gov't

This study was performed to investigate the clinical efficacy of intralesional recombinant interferon-γ (IFN-γ) in the treatments of warts, using a placebo comparison. Warts of each groups were injected with INF-γ containing 5×10⁶ IU/ml (high dose), 1×10⁶ IU/ml (low dose), or distilled water for injection as placebo, respectively, twice weekly for three weeks. The final therapeutic efficacy was determined on the fourth week after the beginning of therapy. Among the 74 patients with periungual warts, plantar warts, or warts of other sites, complete clearing of the treated warts at week four occurred in 56% of the 36 patients receiving the high dose IFN-γ compared to 30% of the 53 receiving the low dose IFN-γ and 17% of the 36 receiving the placebo. Marked improvement showing 75% or greater regression of wart lesions was noted as 89% of patients receiving the high dose INE compared with 55% receiving the low dose IFN and 50% receiving the placebo. The group of patients with warts of other sites showed the best response. The group receiving the high dose IFN experienced some adverse effects more frequently or more severely than the group receiving low dose IFN. However, the effects were relatively tolerable to the patients. Therefore, intralesional injection of the high dose IFN-γ may be more useful in treating warts than a low dose IFN-γ.
Humans ; Injections, Intralesional ; Interferon-gamma* ; Treatment Outcome ; Warts* ; Water

An 84-year-old woman had an ovoid shallow ulcer with an elevated, indurated, pigmented border on the left cheek. Histological examination revealed a moderately differentiated squamous cell carcinoma and a solar keratosis with abundant melanocytes and melanin pigment. Ultrastructurally, the keratinocytes contained numerous melanosomes in their cytoplasms and the melanocytes in the squamous cell carcinoma and the solar keratosis had mature melanosomes.
Aged, 80 and over ; Carcinoma, Squamous Cell* ; Cheek ; Cytoplasm ; Epithelial Cells* ; Female ; Humans ; Keratinocytes ; Keratosis ; Melanins ; Melanocytes ; Melanosomes ; Ulcer

PURPOSE: In order to review various complications and their frequencies and causes after chemoembolization in the patients with hepatic neoplasm. Subjects and Methods:Subjects were 362 patients who underwent chemoembolization for hepatic neoplasm during the recent 2 years from Jan. 1990 to Dec. 1992. A total of 954 procedures were performed in these patients. For the initial treatment, only the emulsion of Lipiodol and Adriamycin were infused in 225 patients and gelfoam embolization were followed in 126 patients. A retrospective analysis for the complications was undertaken with reviewing of clinical and radiologic findings. RESULTS: Severe post-embolization syndrome lasting longer than one week developed in 54 patients in whom Ihe tumor size was mostly larger than 6cm in diameter. Sepsis accompanying persistent fever was developed in 9 cases. There were various hepatic complications;transient deterioration of hepatic function(46 cases), persistent deterioration of hepatic function(15 cases), hepatic failure(9 cases), hepatic rupture(3 cases), intrahepatic bile duct injury(3 cases) and liver abscess(1 case). Complications involuing other organs were upper GI bleeding(9 cases), gallbladder infarction(3 cases), splenic infarction(4 cases), Pulmonary embolism(6 cases)and spinal arterial embolism(1 case). There were 9 mortalities within one month after the procedure. CONCLUSION: Various complications of liver and other organs after chemoembolization of hepatic neoplasm warrants more scrutinized preprocedure evaluations of related factors such as amount of embolic materials, vascular anatomy, protal invasion, biliary obstruction, and liver functional reservoir.
Bile Ducts, Intrahepatic ; Doxorubicin ; Ethiodized Oil ; Fever ; Gallbladder ; Gelatin Sponge, Absorbable ; Humans ; Liver ; Liver Neoplasms* ; Mortality ; Retrospective Studies ; Sepsis

Intracranial nerve sheath tumors unrelated to the cranial nerve roots are extremely rare, and the origin of the tumors are debatable. We report a case of pathologically-proven neurofibroma inside the lateral ventricle. A 49-year-old man presented with headache of 6 months duration, urinary incontinence, visual disturbance and right hemiplegia. Brain CT scan showed a well defined isodense mass with homogenous contrast enhancement and marginal calcification. At surgery the tumor was found to be a 4cm-sized lobulated mass attached only to the choroid plexus. Histologically, the tumor masses consisted of fasciculating bundles of wavy spindle cells, with a considerable collagen laydown.
Brain ; Choroid Plexus ; Collagen ; Cranial Nerves ; Headache ; Hemiplegia ; Humans ; Lateral Ventricles ; Middle Aged ; Nerve Sheath Neoplasms ; Neurofibroma* ; Tomography, X-Ray Computed ; Urinary Incontinence

There have been many reports about lumbar synovial cysts, discussing surgical or interventional treatment methods. However, there have been few reports about spontaneous regression of the cyst. We report a case of a lumbar synovial cyst that regressed spontaneously. To the best of our knowledge, this is the first report of a spontaneously regressed lumbar synovial cyst in Korea. The patient was a 59-year-old man who presented with a 6-month history of insidious pain onset in the lower back and right buttock. Upon MRI of the lumbar spine, grade 1 spondylolisthesis was revealed at the L4-5 level. An about 6mm-sized extradural cyst was detected at the medial side of the right L4-5 facet joint. His symptoms were disappeared upon facet block with 0.5% bupivacaine bilaterally at the L4-5 level. Six years later, he revisited our clinic due to low back pain and left leg radiating pain. Upon lumbar MRI, aggravated L4-5 spondylolisthesis with left-side disc protrusion was observed. However, we could not find the synovial cyst around the right L4-5 facet joint that had existed 6 years prior. The patient was treated conservatively because he refused surgery.
Bupivacaine ; Buttocks ; Humans ; Korea ; Leg ; Low Back Pain ; Middle Aged ; Spine ; Spondylolisthesis ; Synovial Cyst ; Zygapophyseal Joint