In spite of continuing efforts by many researchers and clinicians to improve oral functio, the number of patients with missing teeth resulting from periodnotitis and dental caries has not substantially decreased in Korea. Patients who use removable denture have relatively insufficient masticatory function. Various dental implants have been developed by a number of researchers to improve masticatory function. This study was undertaken to investigate the maximum bite force and masticatory function after implantatioin. A total 23 patients were treated with implantation at the Dept. of oral and maxillofacial surgery, college of Dentistry, PUSAN national university. The patient had natural tooth, the contralateral sides had implant-supported prostheses. The results were follows 1. The maximum bite force was little greater in implant-supported prostheses as 39.7kg than natural tooth as 36.8kg. This is because of the lack of periodontal ligament or inhibitory-reflex mechanism, higher maximal bite force could be expected when teeth are replaced by implants. 2. The maximal bite force is greater on implant-supported prostheses than natural tooth, but the masticatory function is higher at natural tooth. All of the patients who had implant-supported prostheses were comfortable during chewing the food. But, the masticatory function decrease because of psychologic problem and character of Korean food.
Bite Force* ; Busan ; Dental Caries ; Dental Implantation* ; Dental Implants* ; Dentistry ; Dentures ; Humans ; Korea ; Mastication ; Periodontal Ligament ; Prostheses and Implants ; Surgery, Oral ; Tooth

The 1224 cataractous patients who had extracapsular cataract extraction and posterior chamber lens implantations were evaluated retrospectively irrespective of style, postoperative position of intraocular lens and surgeon. The 100 cataractous patients who had extracapsular cataract extraction and posterior chamber lens implantations in the bag accurately using single lens style by one surgeon(E.H.L) were evaluated prospectively. And then the predictive accuracy of the SRK/T intraocular lens power calculation formula was compared with other formulas (SRK, SRKII and Holladay) without consideration of individual A constant. The SRK/T formula was more accurate than other 3 formulas in all axial length, but there were no significant differences statistically. Especially for short and long eyes, SRK/T formula was more accurate than other 3 formulas.

We rotated the nucleus up to 270 degree and dislocated it into anterior chamber through the diameter of capsulorhexis after hydrodissection by using the planned extracapsular cataract extraction. And later on we delivered the nucleus with hydroexpression using the irrigating Vectis or with rotation using a lens spatuala. As a result of this procedure, the nucleus was safely delivered in all cases without zonular rupture and vitreous prolapse.
Anterior Chamber ; Capsulorhexis* ; Cataract Extraction* ; Cataract* ; Prolapse ; Rupture

One case of unilaterally developed acute retinal necrosis syndrome was studied with retina and vitreous from biopsy during operation through electronmicroscope pathologically and virolo gically. In photoreceptor cells, generalized necrosis was found: loss of outer segments, fragmentation of inner segments, and decrease of mitochondria in ellipsoids. Bipolar cells and axons were well preserved. Internal limiting membrane was intact, and covered by an unidentified cell. Degenerated retinal proper had various sized vacuoles. Around the intraretinal vessels, neutrophils and lymphocytes were infiltrated considering vasculitis. In ganglion cells, swelling of mitochondrias were seen, and their cell organelles were decreased, No virus particle was detected in all layers of the retina with electronmicroscope.
Axons ; Biopsy ; Ganglion Cysts ; Lymphocytes ; Membranes ; Mitochondria ; Necrosis ; Neutrophils ; Organelles ; Photoreceptor Cells ; Retina ; Retinal Necrosis Syndrome, Acute* ; Retinaldehyde ; Vacuoles ; Vasculitis ; Virion

The midface are bounded by a line connecting the two zygomaticofrontal suture, passing through the frontomaxillary and frontonasal suture, and limited below by the occlusal plane of maxillary teeth. Midface fractures include fractures affecting the maxilla, the zygoma, and the nasoorbital ethmoid complex. Midface fractures can be classified as LeFort 1, II, III fractures, sygomaticomaxillary complex fractures, zygomatic arch frationctures, or nasoorbital ethmoid fractures. These injuries may be isolated or occur in combine. And sort tissue injuries to the facial structures are commonly encountered in the treatment of midface fractured patient. Soft tissue wounds may be limited to the superficial structures, but more serious injuries may extend to involve anatomic structures such as the sensory and motor nerves of the face; the parotid, or nasolacrimal glands or ducts ; or the dentoalveolar structures. Especially, these fractures are combined with the orbit, brain injuries and skull base fractures. This is to report the incidence, causes, criteria, complication and treatments of patients who visited our department for midface fracture, for last 10 years.
Brain Injuries ; Dental Occlusion ; Humans ; Incidence ; Maxilla ; Orbit ; Skull Base ; Sutures ; Tooth ; Wounds and Injuries ; Zygoma ; Zygomatic Fractures

No abstract available.
Umbilical Cord*

Hyperbaric oxygen therapy (HBO), which in Korea is used chiefly for CO poisoning, can be used in many disorders in orthopaedic field through the action of increasing oxygen tension of peripheral tissue, Since June 1986, when the multiplace hyperbaric chamber was built in our hospital, we have experienced 197 cases of HBO in orthopaedic field and we are to analyze the result of treatment and suggest reasonable indications. The outline of results are as follows ;1. Crushing injuries and wounds caused or accompanied by circulatory disturbance were most frequent among the 197 cases we've experienced, and received 17.5 times of HBO on average. 2. Discernible effectiveness was found in split thickness skin graft, diabetic ulcer and Buerger's disease as compared to the control group. 3. Otalgia was the most common side effect, but not severe. 4. From the above results, it is thought that HBO has fair range of indications in orthopaedic field and is worth using as an adjuvant means to surgery.
Earache ; Hyperbaric Oxygenation ; Korea ; Oxygen ; Poisoning ; Skin ; Thromboangiitis Obliterans ; Transplants ; Ulcer ; Wounds and Injuries

PURPOSE: Oral UFT is known to be a safe and effective antineoplastic regimen for adjuvant chemotherapy of colorectal cancer. As it sometimes produces upper gastrointestinal symptoms such as anorexia, nausea, vomiting and abdominal pain, medication should be stopped transiently or dosage reduced. UFT-E, an enteric coated granule of UFT was introduced to reduce UGI toxicity. We analyzed the toxicity of UFT and UFT-E prospectively for the purpose of comparison between the two types. METHODS: The toxicity of UFT and UFT-E were evaluated in 83 patients (UFT; 45, UFT-E; 38) with colorectal cancer who underwent curative surgery according to the WHO toxicity criteria. All patients were selected consecutively with patients' approval and by the "Institutional Review Board, Asan Medical Center". RESULTS: The toxicity incidence in UFT-E group was slightly less than that in UFT group without statistical significance. The severity of toxicity seemed to be mild within grade 1 or 2 and most of them toxicity self-limiting. The regimen was completely interrupted in 9 patients (20%) in the UFT group, 3 patients (7.9%) in the UFT-E group due to severe UGI symptoms, prolonged leukopenia, derrangement of liver function and skin rash. CONCLUSIONS: Toxicity rate of UFT-E was not higher than that of UFT. But we cannot prove superiority of UFT-E on UGI toxicity. Oral UFT-E can be administered safely on an outpatient basis without lethal toxicity requiring hospitalization.
Abdominal Pain ; Anorexia ; Chemotherapy, Adjuvant ; Chungcheongnam-do ; Colorectal Neoplasms* ; Exanthema ; Hospitalization ; Humans ; Incidence ; Leukopenia ; Liver ; Nausea ; Outpatients ; Prospective Studies ; Vomiting

This study was performed to described morphology of mitral valve by observing and measuring anatomical structures of mitral valves in Korean which looked normal at autopsy, and to provided basic data the clinical application. The mean circumference of mitral valve annulus was 9.14±1.28cm in males and 8.14±1.18cm in females. The width of anterior cusp was 30.3±0.53cm in males and 2.80±0.53cm in females, and the height was 1.99±0.43cm in males and 1.51±0.39cm in females. The posterior cusp consisted of 3 scallops in 34 hearts and 4 scallops in 4 hearts, and 2 scallops in 2 hearts out of 40 hearts. The middle scallop was largest in 36 hearts out of 40 hearts. The width of posteromedial scallop was 1.18±0.37cm in males and 1.08±0.32cm in females, and the height was 0.97±0.31cm in males and 0.94±0.29cm in females. Thre width of midd1e scallop was 2.08±0.61cm in males and 1.84±0.63cm in feamales, and the height was 1.18±0.32cm in male and 1,11±0.25cm in females. The width of anterolateral scallop was 1.30±0.41cm in males and 1.10±0.43cm in females, and the height was 0.88±0.25cm in males and 0.94±0.33cm in females. In general, the values of male were greater than those of female, although there was no statistical significance. Measurements of this study were generally smaller than those of the Caucasian reported by other investigators. Measurements in male were generally larger than those in female and this result corresponded well to those of other authors.
Adult* ; Autopsy ; Female ; Heart* ; Humans ; Male ; Mitral Valve* ; Pectinidae ; Research Personnel

Nezelof's syndrome(combined immunodeficiency with immunoglobulin) is a hereditary primary immunodeficiency characterized by recurrent chronic pulmonary infections, oral and cutaneous candidiasis, failure to thrive, chronic diarrhea, skin infection, urinary tract infection, gram-negative sepsis, severe progressive varicella infection, lymphopenia, diminished lymphoid tissue, abnormal structure of the thymus, and presence of normal or increased levels of one or more of the major immunoglobulin classes, but with impaired antibody synthesis. We experienced a case of Nezelof's syndrome in 5-month-old boy who complained cough, poor feeding, vomiting and diarrhea in first admission day and discharged with recovered general condition in 38th admission day and then died of recurrent bacterial and fungal infections and malnutrition in 15-month-old age. He had no thymic shadow in chest X-ray and immunologic abnormalities including decreased lymphocyte count, decreased T cell count and function, normal number of B cell count and immunoglobulins with funtional impairment in antibody synthesis. We report a case of Nezelof's syndrome with brief review of related literatures.
Candidiasis, Cutaneous ; Cell Count ; Chickenpox ; Cough ; Diarrhea ; Failure to Thrive ; Humans ; Immunoglobulin Isotypes ; Immunoglobulins ; Infant ; Lymphocyte Count ; Lymphoid Tissue ; Lymphopenia ; Male ; Malnutrition ; Sepsis ; Skin ; Thorax ; Thymus Gland ; Urinary Tract Infections ; Vomiting