This study was executed to measure the shear bond strength of Panavia EX and Panavia 21 when the Ni-Cr-Be alloy castings were cemented to the enamel surfaces with these cements. The cast metsl plates of Ni-Cr-Be alloy were sandblasted and cemented to acid etched enamel surface with Panavia EX or Panavia 21. Their shear bond strength were measured with Instron Universal Testing machine. Within the limits of this study, following conclusions were withgdrawn. 1. The mean shear bond strength were 26.85.7Mpa, in Panavia EX and 28.35.2Mpa, in Panavia 21. 2. t-Test revealed no statistical significance between two groups(.05 level) 3. Macroscopically, bond failures were revealed compound fracture at metal and enamel interfaces, in cases of both cements, as the cement attached partly on both metal and enamel surface.
Adhesives* ; Alloys* ; Dental Enamel* ; Fractures, Open

Changes of body temperature were observed in the esophagus and rectum by telethermometer during extracorporeal circulation in 40 cases of open heart for detection of significant differences in survivals and non-survivals. The following results were obtained; 1) Esophageal and rectal temperature(just prior to extracorporeal circulation) were 36.4+/-0.69 degrees C, 36.8+/-0.8 degrees C respectively in non-survivals and 36.0+/-0.73 degrees C, 36.4+/-0.8 degrees C in survivals after open heart surgery 2) Normal differences between rectal and esophageal temperature came to disappear after 30 minutes of extracorporeal circulation in two groups. 3) Esophageal temperatures were higher than rectal temperatures after extracorporeal circulation for open heart surgery in both groups. 4) Changes of temperature differences between rectum and esophagus have no correlation with mortality because of the variation in two areas in both groups.
Body Temperature* ; Clinical Study* ; Esophagus ; Extracorporeal Circulation* ; Heart* ; Mortality ; Rectum ; Thoracic Surgery*

PURPOSE: Effective hemodialysis for a patient with end-stage renal disease (ERDS) is dependent upon a durable, low-morbidity vascular access. Although It is generally agreed that the distal radiocephalic fistula originally discribed by Brescia and Cimino is the most effective primary access constrruction, no consensus exists regarding primary and secondary alternatives for patients with inadequate of failed rediocephalic prodedures. Many options are available, but the relative value of these alternative operations is unclear. Therefore the place of the basilic vein in secondary acccess construction needs to be assessed. We evaluated if the basilic vein can be used to construct a durable, low-morbidity access. METHODS: A native brachio-basilic arterio-venous fistula with superficial transposition has been performed, for lack of usuable vein on 54 forearm in 47 patients from August 1995 to October 1999 (Male: 15, female: 32) with mean age 51 years (26 to 70 years). RESULTS: The main cause of renal insufficiency were: diabetes 27 (57.4%), hypertensive 19 (40.4%), renal tuberculosis 2 (4.3%) and renal cyst 1 (2.1%). The waiting period before vascular access puncture has been 28 6 days. Eight (17.0%) stenosis has been detected and, forearm and/or hand edema occured in three (6.4%); thrombosis in two (4.3%); bleeding in two (4.3%); pseudoaneurysm in one. Through the follow-up periods of 50 months, the primary patency was 80.9% at 12 months and 78.7% at 24 months. CONCLUSION: The brachio-basilic fistula with superficial transposition of basilic vein is a valuable vascular access for diabetes, female old patients, and can remain an alternative method for even younger patients by avoiding the installation of artificial graft after failed forearm arteriovenous fistula.
Aneurysm, False ; Arteriovenous Fistula* ; Consensus ; Constriction, Pathologic ; Edema ; Female ; Fistula ; Follow-Up Studies ; Forearm ; Hand ; Hemorrhage ; Humans ; Kidney Failure, Chronic ; Ocimum basilicum* ; Punctures ; Renal Dialysis* ; Renal Insufficiency ; Thrombosis ; Transplants ; Tuberculosis, Renal ; Veins*