1.Evaluation of proximal contact strength by postural changes.
Hee Sun KIM ; Hyun Joon NA ; Hee Jung KIM ; Dong Wan KANG ; Sang Ho OH
The Journal of Advanced Prosthodontics 2009;1(3):118-123
STATEMENT OF PROBLEM: Proper proximal contact is important for maintaining and stabilizing the dental arch. However, the proximal contact strength (PCS) is not a constant value and can be affected by a variety of factors. PURPOSE: This study examined the influences of postural changes on the posterior PCS. MATERIAL AND METHODS: Twelve adults with a normal occlusion and had not undergone prosthetic treatment or proximal restoration were participated in this study. A metal strip was inserted into the proximal surface and removed at a constant velocity. The contact strength was measured in every contact point between canine to second molar in both arches. The PCSs were obtained initially in the upright position, secondly in the supine position and finally in the upright position again. All measurements were repeated after a 2 hour period. Statistical analysis was carried out using the Friedman test (P < .05). RESULTS: Generally, a decrease in PCS occurred when the posture was changed from the initial upright to supine position, while it increased when the posture was changed from the supine to upright position. A significant change was observed in all areas except for between the canine-first premolar in the maxilla and between the first molarsecond molar in the mandible areas. CONCLUSION: The posterior PCS, which dentists generally believe to be a static feature of occlusion, is affected significantly by posture.
Adult
;
Bicuspid
;
Dental Arch
;
Dentists
;
Humans
;
Mandible
;
Maxilla
;
Molar
;
Posture
;
Supine Position
2.Characteristics of Potassium Channel in the Isolated Rat Detrusor Muscle.
Myeong Soo JANG ; Eun Mee CHOI ; Jeoung Hee HA ; Kang Youn LEE ; Won Joon KIM
Yeungnam University Journal of Medicine 1994;11(2):363-374
The purpose of this study was to investigate the characteristics or the potassium channels existing in the rat urinary bladders. Smooth muscle strips of rat detrusor urinae were examined by isometric myography. Relaxation responses of detrusor muscle strips to the three potassium channel openers pinacidil, a cyanoguanidine derivative, BRL 38227, a benzopyran derivative and RP 52891, a tertrahydrothiopyran derivative were examined. The potassium channel openers reduced the basal tone, and the rank order of potency was RP 52891>pincidil>BRL 38227. Procaine, an inhibitor of the voltage-sensitive potassium channel tended to increase the basal tone, but it did not affect the relaxant effects of the calcium-activated potassium channel opener did not antagonize the relaxant effects, but it reduced the Emax of RP 52891 and BRL 38227. Glibenclamide, an inhibitor of the ATP-sensitive potassium channel, antagonized the relaxant effects of pinacidil, RP 52891 and BRL 38227 reducing the Emax of RP 52891 and BRl 38227. Galanin which inhibits secretion of insulin through opening the ATP-sensitive potassium channels in pancreatic β-cells rather increased the basal tone of the isolated detrusor strips. These results suggest that the urinary bladder of the rat has mainly the ATP-sensitive, glibenclamide sensitive potassium channel, which is a different type from that in the pancreatic β-islet cells.
Animals
;
Cromakalim
;
Galanin
;
Glyburide
;
Insulin
;
KATP Channels
;
Muscle, Smooth
;
Myography
;
Pinacidil
;
Potassium Channels*
;
Potassium Channels, Calcium-Activated
;
Potassium*
;
Procaine
;
Rats*
;
Relaxation
;
Urinary Bladder
3.Change of Cerebral Blood Flow Velocity in Normal Newborn Infants.
Sang Hee KIM ; Se Jin KANG ; Chang Sung SON ; Pyung Hwa CHOE ; Nam Joon LEE
Journal of the Korean Pediatric Society 1989;32(8):1037-1044
No abstract available.
Blood Flow Velocity*
;
Humans
;
Infant, Newborn*
4.A Clinical Study of Tetralogy of Fallot.
Seon Hee JEONG ; Jong Moon WHANG ; Joon Sik KIM ; Tae Chan KWON ; Chin Moo KANG
Korean Circulation Journal 1990;20(4):768-775
The clinicolaboratory findings, cardiac catheterization, and outcome of operation were analyzed in 78 patients with tetralogy of Fallot, which were diagnosed by echocardiography, cardiac catheterization, and a cardiac angiography and confirmed by operation at Dong San Hospital, Keimyung University, during a 4(1/2)-year period from January 1984 to June 1988. The following results were obtained : 1) Out of the 78 cases, 45 were male and 64 were female. 2) The electrocardiogram showed right axis deviation in 71 cases(91%) and right ventricular hypertrophy in 66 cases(84.6%). 3) Chest X-ray revealed that, the cardiothoracic ratio was normal or decreased in 68 cases(87.3%), and cardiac apex elevation was noticed in 57 cases(73%). 4) Pulmonary stenosis were chiefly valvular and infundibular type(53.8%). 5) The associated heart diseases with TOF were patent foramen ovale(64.1%), right sided aortic arch(19.2%), and secundum ASD(10.3%), in that order. 6) There was an intimate correlation between secondary polycythemia and thrombocytopenia. 7) Among the 78 Cases, 73 cases had total correction, 1 case had shunt operation, and 4cases had total correction after shunt operation. The highest mortality rate occurred in the cases of total correction after shunt operation(25%). The cases with a main pulmonary artery size of 1/3 to 2/3 against, the aorta had a higher mortality than the other group, and no cases expired in the group with a ratio of more than 2/3. The overall surgical mortality was 8.9%.
Angiography
;
Aorta
;
Axis, Cervical Vertebra
;
Cardiac Catheterization
;
Cardiac Catheters
;
Echocardiography
;
Electrocardiography
;
Female
;
Heart Diseases
;
Humans
;
Hypertrophy, Right Ventricular
;
Male
;
Mortality
;
Polycythemia
;
Pulmonary Artery
;
Pulmonary Valve Stenosis
;
Tetralogy of Fallot*
;
Thorax
;
Thrombocytopenia
5.A Case of Congenital Nephrotic Syndrome.
Choong Sun KANG ; Chang Hee HWANG ; PyungKil KIM ; Hyeon Joo JEONG ; In Joon CHOI ; Jung Hye CHOI
Journal of the Korean Pediatric Society 1988;31(5):627-634
No abstract available.
Nephrotic Syndrome*
7.A Case of Targetoid Hemosiderotic Nevus.
Min Won LEE ; Jun Oh PAEK ; Myung Seung KANG ; Hee Joon YU ; Joung Soo KIM
Korean Journal of Dermatology 2013;51(3):224-226
8.Acute suppurative thyroiditis associated with piriform sinus fistula.
Seung Sang MOON ; Seong Joon KANG ; Soo Yung YOO ; Soon Hee JUNG
Journal of the Korean Surgical Society 1993;44(6):1066-1071
No abstract available.
Fistula*
;
Pyriform Sinus*
;
Thyroiditis, Suppurative*
9.Temporomandibular joint bony ankylosis following postoperative radiotherapy for maxillary cancer.
Yeung Joon LEE ; Chi Hee PARK ; Dae Won KANG ; Jye Jung SOH ; Jye Jynn ANN
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1993;19(4):533-539
No abstract available.
Ankylosis*
;
Radiotherapy*
;
Temporomandibular Joint*