No abstract available.
Hemorrhoids*

No abstract available.
Hemorrhoids*

Three-dimensional solid model has not been widely used in surgical prediction of orthognathic surgery because freque from occlusal restorations or prosthesis limited the usefulness of simulated surgery involving occlusion. We prepared three-dimensional(3D) solid model from CT data and integrated the 3D solid model with dental cast using a face-bow transfer technique combined with skeletal reference measurement and confirmation with cephalometric radiographs. With this simple and easy method, it was possible to predict bony interference between the proximal and distal segment of the mandible so that we can prevent condylar displacement after sagittal split ramus osteotomy of the mandible with prominent asymmetry. The method error was within 2mm and it seemed to be useful in preoperative planning for maxillofacial surgery with maxillo-mandibular occlusal change
Mandible* ; Orthognathic Surgery* ; Osteotomy, Sagittal Split Ramus ; Prostheses and Implants ; Surgery, Oral

BACKGROUND: Platelet aggregation and thrombus formation within the coronary artery are major factors in acute coronary syndrome. The platelet glycoproteinIIb/IIIa receptor is a pivotal mediator of platelet aggregation. Recently there have been reports that the genetic polymorphism of GPIIIa is an inherited risk factor for coronary artery thrombosis. This study investigated the relation between the Pl(A) polymorphism and coronary artery disease in Korean patients. METHODS: One hundred patients with acute myocardial infarction and unstable angina were enrolled. Coronary angiogram was performed in eighty-one cases. Genomic DNA from peripheral blood was amplified by polymerase chain reaction. Allele-specific restriction digestion was used to determine the Pl(A) genotype. RESULTS AND CONCLUSIONS: The prevalence of Pl(A2) genotype was zero percent in our study group. All patients had the Pl(A1/A1) genotype. These results suggest that Pl(A) genetic polymorphism of GPIIIa is not an inherited risk factor for coronary artery diseases in Koreans.
Acute Coronary Syndrome ; Angina, Unstable ; Blood Platelets* ; Coronary Artery Disease* ; Coronary Vessels* ; Digestion ; DNA ; Genotype ; Humans ; Integrin beta3* ; Myocardial Infarction ; Platelet Aggregation ; Polymerase Chain Reaction ; Polymorphism, Genetic* ; Prevalence ; Risk Factors* ; Thrombosis

No abstract available.
Durapatite* ; Dust* ; Rabbits* ; Transplants*

Dentofacial Deformities ; Head ; Humans ; Imaging, Three-Dimensional ; Orthodontic Brackets ; Skull

PURPOSE: It is important to have the epidemiologic data of rotavirus serotypes for the application of polyvalent rotavirus vaccines. Epidemiological studies of rotavirus serotypes in Korea have been reported only in limited areas with small number of cases. Authors tried to investigate the distribution of rotavirus G serotypes in ChungJu area with RT-PCR. METHOD: Stool specimens were collected from 202 children with acute diarrheal symptoms, who admitted to or visited Kon-Kuk University Hospital in ChungJu from June 1998 to May 1999. Samples were screened for rotavirus with EIA method (TestPack Rotavirus, Abbott Laboratories) and rotavirus G Serotypes were determined by RT-PCR. RESULTS: Rotavirus was positive in 46.6%. The incidence of G serotypes was as follows; G1 10%, G2 10%, G3 28%, G4 26%, and G9 20%. There were three cases of multiple serotypes; G1 with G9, G2 with G9, and G4 with G9. Serotype of G8 was not found. CONCLUSION: The proportion of G serotypes in ChungJu is much different from previous reports. Serotype of G9 was found which had not been reported in Korean children till now. Long term plans for the investigation of rotavirus serotypes must be needed in wide area.
Child ; Chungcheongbuk-do* ; Humans ; Incidence ; Korea ; Rotavirus Vaccines ; Rotavirus*

We report a case of myiasis on the left submandibular area after radiation therapy for squamous cell carcinoma. A 77-year-old man visited our hospital, 7 weeks after complicating a course of radiation therapy, had a 7cm diameter necrotic ulcer on the left submandible. The margin of the lesion were undermined by numerous interlinking passages containing 20 maggots. The maggots were removed by simple extraction and were identified as Calliphoridae Lucilia. The probable origin of the myiasis in this case was attributed to poor environmental condition and general weakness of the patient. Oppotunistic cutaneous myiasis can be prevented by protecting open wounds from flies, wound should not be left without a covering capable of excluding flies, especially in the summer month.
Aged ; Carcinoma, Squamous Cell* ; Diptera ; Humans ; Larva ; Myiasis* ; Ulcer ; Wounds and Injuries

Anesthesia, Local ; Cautery ; Epistaxis ; Hemorrhage ; Hemostasis ; Humans ; Ligation

PURPOSE: This study was intended to perform cephalometric comparison between the patients with and without obstructive sleep apnea (OSA). The factors influencing the OSA in the lateral cephalogram was also investigated. PATIENT AND METHOD: Twenty four patients who visited Sleep Disorder Clinic in Dongsan Medical Center, Keimyung University and evaluated with polysomnograph(PSG) and cephalogram were included in the study. The patients had apnea-hypopnea episode(AHI) over 10 times per hour was diagnosed as OSA after overnight PSG. To evaluate hard and soft tissue profile, cephalometric radiogram were taken at maximal intercuspation(P1) and mandibular protruding position(P2). The diffefence between the OSA and normal group were evaluated statistically and the stepwise regression analysis was applied to analyse the cephalometric influencing factors to OSA. RESULT: The OSA Group(n=14) had significantly higher Body Mass Index(BMI) than control group(n=10). Lower facial height(ANSGn) was longer in OSA group. However statistically significant difference was not detected in other anteroposterior craniofacial measurements. The soft palate lenth (PNS-P), hyoid position (MP-Hyoid) had positive correlation between AHI (r=0.496, r=0.413, respectively, p<0.05). However, the measurements of oropharyngeal airway was not different between the two groups. The hypothesis, the antero-posteriorly narrow oropharyngeal airway might aggravate the airway resistance and can give rise to higher AHI, was not accepted in the study. This can be attributed by inclusion of the patients performed uvulopalatopharyngoplasty because of the tonsilar or soft palate hypertrophy in the present study. The results of regression analysis revealed that PNS-P, upper airway width(Nph1), upper facial heght(N-ANS), and lower facial height(ANS-Gn) could influence the degree of AHI (F value < 0.0001, R2 = 0.829). CONCLUSION: We suggest lateral cephalogram may utilized as a useful method to evaluate OSA. The patient with long soft palate, narrow upper airway width, long upper and lower facial height can be expected to have high risk of OSA. However, it should be emphasized the comphrehensive intraoral inspection including soft palate and tonsilar hypertrophy because lateral cepahlogram cannot visualize oropharyngeal status completely.
Airway Resistance ; Humans ; Hypertrophy ; Palate, Soft ; Sleep Apnea, Obstructive*