No abstract available.
Histamine* ; Peptic Ulcer*

No abstract available.
Neck*

The purpose of the present study lied in examining the incidence, treatment and failure causes of peri-implantitis by analyzing medical charts of those patients who underwent implant placement for the past 2 years. The subjects included those patients who underwent implant placement at the present hospital from January 2001 to December 2002. 3i implants were used for the analysis for the comparison of significance. A total of 301 patients were examined, among whom 102 were females and 199, males. Implants were placed in a total of 578 cases. The number of peri-implantitis was present in a total of 29 cases (21 males and 8 females), giving the incidence at 9.6%. The evidence of peri-implantitis was seen in 60 cases, which was in 10.4% of the patients. Among those cases with peri-implantitis, 28 cases (47%) underwent bone graft and 22 cases (43%) underwent maxillary sinus lift. Furthermore, 4 of these patients had systemic diseases such as diabetes or hypertension. Regular management is important for the preven ion of peri-implantitis. In other words, early prevention through regular follow-ups to check the status of surrounding soft tissue would be needed to maintain implants.
Female ; Humans ; Hypertension ; Incidence ; Male ; Maxillary Sinus ; Peri-Implantitis* ; Retrospective Studies* ; Transplants

BACKGROUND: There were a lot of problems in the health care system of Korea, which was divided into Western and Korean Traditional Medicine since 1951. In 1976 WHO published program of The promotion and development of traditional medicine. In 1977, Korean Medical Association(KMA) asked unification of health care system to government. But there was no progress because there were the lacks of mutual respect and understanding be-tween doctors of Western and Korean Traditional Medicine. As one health care group competed with the other, so KMA proposed the unification of health system again in 1997. The objectives of this research are to analyze attitude and opinions of western medical doctors on Korean Traditional Medicine and to analyze the opinions on the unification of medical care system in Korea. METHODS: A list of western medical doctor in Seoul and Incheon was obtained from Korean Medical Association. We sampled 937 doctors by stratified random sampling method. We sent them a postal questionnaire with a prepaid return envelope two times during March and April 1997. Of the 937 questionnaire, 266 replies were received. We analyzed the preference score related referral, Korean Traditional Medicine education and unification of medical care system We analyzed the data by Chisquare test, t-test, ANCOVA. RESULTS: This study shows that the western doctors have negative attitude on Korean Traditional Medicine(M=1K8, SD=5.2). They thought Korean Traditional Medicine was not reliable because it was not scientific(79.4%). Doctor, who didn't take oriental medical education, preferred unification of health care system, but it was not statistically significant. Those who experienced oriental medical education used oriental medical treatment more frequently(F=1.17, p=0.04). The more positive attitude they have about Korean Traditional Medicine, the more frequently they refereed the patient to oriental medical doctor(t =3.57, p =0.0004). CONCLUSIONS: Western medical doctors have a negative attitude on Korean Traditional Medicine. Doctors, who did not have oriental medical education, preferred unification of health care system, but it was not statistically significant. In summary, the lack of mutual respect and understanding between doctors of the Western and Korean Traditional Medicine prevent unification of medical care system.
Delivery of Health Care ; Education ; Education, Medical ; Humans ; Incheon ; Korea ; Medicine, Korean Traditional* ; Medicine, Traditional ; Referral and Consultation ; Seoul ; Surveys and Questionnaires

No abstract available.

No abstract available.

A review of the literature, provided by a MEDLINE search from 1980 through June 1999, was performed. This study was screened that 649 patients received 679 sinus lift grafts in which 2056 implants were placed. The types of grafts in sinus augmentation were autogenous bone, corticocancellous block bone, allogenic bone, and a variety of alloplastic materials. Results of these grafts are presented. The most frequent complications was the infection of maxillary sinus. Long-term follow-up is necessary to advance the sinus elevation and to support posterior maxillary restorations.
Follow-Up Studies ; Humans ; Maxillary Sinus* ; Transplants*

PURPOSE: In the treatrnent of respiratory distress syndrome, Infants are often exposed to hyperoxia. It can generate oxygen free radical, damage to lung and bronchi, and inactivate pulmonary surfactant(PS). Antioxidant therapy in animal and human models has been tried to overcome this detrimental effects. We hypothesized that the addition of oxygen free radical such as hydrogen peroxide(H) could compromise surface active properties(SAP) of PS and that further addition of antioxidant such as catalaseR(CAT, Sigma chemical, St. Louis) could recover SAP. METHODS: We prepared combinations of mixtures with SurfactenR(S-TA, Tokyo Tanabe, Japan), H202 and CAT. 1)0.625mgPL(phospholipids)/ml or 1.25mgPL/ml S - TA and H202 were mixed to the final concentrations of 0.1 and 1mM H respectively, and incubated at 37C for one hour. 2) 0.625mgPL/rnl S - TA, H202 and CAT 10U were mixed to the final concentrations of lmM H202, and incubated at 37 degree C for one hour. We used Pulsating Bubble Surfactometer (Electronetics, NY) measure in vitro minimum and maximum surface tensions(ST) and area-surface tension relationship. RESULTS: 1) For 0.625mgPL/ml S-TA and 1mM H mixture minimum. ST after 5 min of pulsation increased significantly(P=0.007) and the area-surface tension curve was deformed. But they were comparable to control levels for 1.25mgPL/ml S-TA. 2) When CAT was added to 0.625mgPL/ml S-TA and 1mM H mixture, the resultant minimum ST after 5 min of pulsation dropped to the control levels with recovery of hysteresis curve(P=0.0001). CONCLUSION: PS could be inactivated by addition of high concentrations of H but SAP can be recovered either by increasing PS concentration or by further addition of antioxidant CAT. Therefore, we suggest that in case of suspected surfactant inactivation an increase in surfactant concentration or administration of antioxidant must be considered.
Animals ; Bronchi ; Catalase* ; Cats ; Humans ; Hydrogen Peroxide* ; Hydrogen* ; Hyperoxia ; Infant ; Lung ; Oxygen

No abstract available.
Adult* ; Humans

No abstract available.
Adult* ; Humans