1.THE SHEAR BOND STRENGTH OF RESIN TEETH TO THE DENTURE BASE RESIN.
Young Kuk SONG ; Young Wan JUNG ; Tai Ho JIN
The Journal of Korean Academy of Prosthodontics 1999;37(2):235-241
The bond failure of resin teeth to denture base resin is one of the failure in prosthodontic treatment. The purpose of this study was to evaluate the bond strength of artificial resin teeth to the denture base resins. Specimens were made with heat curing acrylic resins (Vertex Rs, Lucitone 199) and artificial resin teeth (Tiger, Trubyte biotone, Endura, Orthosit, Trubyte bioform IPN) and the bond strength were measured with testing machine (Zwick, Germany) and the mode of bond failure were observed. The results were as follows; 1. The bond strength of Vertex Rs to artificial resin teeth was the highest in Trubyte biotone, and It was the lowest in Tiger and Trubyte bioform IPN 2. The bond strength of Lucitone 199 to artificial resin teeth were higher in Orthosit and Trubyte bioform IPN than in Tiger and Trubyte biotone. 3. The bond strength of Trubyte biotone to Vertex Rs was higher than to Lucitone 199 and that of the Trubyte bioform IPN to Lucitone 199 was higher than to Vertex Rs. 4. Nearly all bond failures of specimens occured cohesively within the resin teeth.
Acrylic Resins
;
Denture Bases*
;
Dentures*
;
Hot Temperature
;
Prosthodontics
;
Tigers
;
Tooth*
2.A Case of Eosinophilic Gastroenteritis.
Moon Young SONG ; Jong Wan KIM ; Joon Sung LEE
Journal of the Korean Pediatric Society 1994;37(10):1457-1462
Eosinophilic gastroenteritis is a rare disorder of unknown etiology characterized by protein losing enteropathy, peripheral eosinophilia and iron deficiency anemia secondary to gastrointestinal blood loss. It is often accompanied by signs of systemic allergy. This case of a 26-month-old male patient who developed scrotal edema and diarrhea for a month had peripheral eosinophilia ranged from 24 to 32% of total leukocyte, iron deficiency anemia and hypoalbuminemia with slightly increased level of serum lgE. Biopsies of the stomach and duodenum demonstrated marked eosinophilic infiltration of the mucosa and lymphatic dilatation, which was consistent with eosinophilic gastroenteritis. We report a case of eosinophilic gastroenteritis with a brief review who was treated with corticosteroid alone and had marked symptomatic improvement.
Anemia, Iron-Deficiency
;
Biopsy
;
Child, Preschool
;
Diarrhea
;
Dilatation
;
Duodenum
;
Edema
;
Eosinophilia
;
Eosinophils*
;
Gastroenteritis*
;
Humans
;
Hypersensitivity
;
Hypoalbuminemia
;
Leukocytes
;
Male
;
Mucous Membrane
;
Protein-Losing Enteropathies
;
Stomach
3.Sjogren's Syndrome.
Young Wan SONG ; Young Ja BYUN ; Jung Hyub OH
Journal of the Korean Ophthalmological Society 1982;23(3):703-705
Sjogren's syndrome is a systemic disorder and characterized by keratoconjunctivitis sicca, xerostomia, and connective tissuedysfunction(arthritis). A 42 year-old Korean iemalehad progressive loss of visual acuity in both eyes. In addition she has dry eyes, dry mouth and arthritis of 8 years duration. Clinical findings include cornea punctate, filamentary karatitis and decreased lacrimal secretions of both eyes. A diagnosis of Sjogren's syndrome was made. The karatoconjunctivitis siccawas treated with artificial tear and soft contact lens.
Adult
;
Arthritis
;
Contact Lenses, Hydrophilic
;
Cornea
;
Diagnosis
;
Humans
;
Keratoconjunctivitis Sicca
;
Mouth
;
Sjogren's Syndrome*
;
Tears
;
Visual Acuity
;
Xerostomia
4.The Pattern of Pulmonary Venous Flow in Various Heart Disease.
Young Hoon KIM ; Woo Hyuk SONG ; Young Kyu HONG ; Tae Hoon AHN ; Wan Joo SHIM ; Young Moo RO
Korean Circulation Journal 1991;21(2):311-321
To evaluate the influencing factors on pulmonary venous flow(PVF) pattern, we studied the relationship between PVF and left ventricular ejection fracton(EF), mitral annulus motion(MAM) and transmitral flow using pulsed doppler echocardiography in patients with dilated cardiomyopathy(DCMP), acute myocardioal infarction(AMI), left ventricular hypertrophy(LVH) and atrial fibrillation(AE). Ther results were as follows : 1) In the normal controls(13 cases), two forward flow during ventricular systole(VS) and diastole(VD) and one retrograde flow during atrial systole(AS) were observed. The peak velocity of VS, VD and AS flow was 45.9cm/s, 42.8cm/s and -18.3cm/sec, respectively. The peak VS/VD ratio was 1.1. 2) In patients with DCMP(11 cases), (a) compared to the noraml subjects, the peak velocity of VS flow and VS/VD ratio were were significantly reduced(p<0.005 and p<0.001, respectively) and were positively correlated with ejection fraction(r=0.8 and r=0.7, respectively) (b) in 2 DCMP cases with severe mitral regurgitation, systolic retrograde flow was observed in the pulmonary vein instead of forward VS flow. 3) In 12 AMI cases and 7 LVH cases with normal or slightly diminished left ventricular systolic function but with abnormal diastolic function. (a) the peak velocity of VS flow and peak VS/VD ratio were significantly increased(r<0.005 and p<0.01, respectively). (b) the peak velocity of VD flow is positively correlated with transmitral E/A ratio(r=0.8) and the peak VS/VD ratio was positively correlated with transmitral pressure half time(r=0.8). (c) the peak velocity of retrograde AS flow was significantly increased(p<0.001). (d) there was no correlation between doppler parameters of PVF and left ventricular ejection fraction. 4) In patients with atrial fibrillation(10 cases), VS flow was markedly diminished or absent and only VD flow was observed. Also, retrograde AS flow was not observed. These findings suggest that the pattern of PVF is influnced by LVEF, MAM, transmitral inflow and atrial contraction. However, main contributary factors in determining the pattern of PVF in each disease are diverse according to its main pathophysiology.
Deoxycytidine Monophosphate
;
Echocardiography, Doppler, Pulsed
;
Heart Diseases*
;
Heart*
;
Humans
;
Mitral Valve Insufficiency
;
Pulmonary Veins
;
Stroke Volume
5.Study on the Premedication for the Upper Gastrointestinal Endoscopic Procedure.
Young Jin KANG ; Gun Am SONG ; Dong Wan LEE ; Ung Suk YANG
Korean Journal of Gastrointestinal Endoscopy 1988;8(1):11-17
In order to assess the effects of diazepam and meperidine as premedication for upper gastrointestinal endoscopy, eighty eight patients undergone an elective upper gastrointestinal endoscopy were studied. Studied patients were divided into two groups; one group was premedicated with buscopan and stropine(group I), and the other group was premedicated with diazepam and meperidien (group II). The results obtained were summarized as follows; 1) 83.0% of the group II (44/53) did not eomplain any discomfort by the procedure, but only 23.9% (8/35) of the group I showed no discopmort. The difference between two groups is statiatieally significant (p<0.005). 2) In 41 patients with previous experience of endoscopy, 22 patients from 27 of the graup Il(81.5%) did not feel any discomfort but it wes only 3 patients among 14 of the group I (21.4%) who did not feel discomfart (p<0,005). 3) In 47 patients without previous experience of endoscopy, 23 patients from 26 of the group II (88. 5%) did not show discomfort but it way only 5 patients among 21 of the group I (23.7%) (p<0.005). 4) In the patients with previous experience of endoscopy, 21 patients among 27 of the group II (77. 8%) felt better than that of the previous experience but it was only 3 patients among 14 of the group I (21.4%) (p<0.005). From the above results, we would emphasize that it is more effective to use diazepam and, meperidien as premendication for the gastrointestinal endoscopic procedure since it removes pstients apprehension rendering them a good cooperation with very minimal side effects,
Butylscopolammonium Bromide
;
Diazepam
;
Endoscopy
;
Endoscopy, Gastrointestinal
;
Humans
;
Meperidine
;
Premedication*
6.A study of the effects of endotracheal intubation to the temporomandibular joint
Chang Soo MOON ; Byoung Ouck CHO ; Yong Chan LEE ; Young Wan SONG ; Rim Soo WON
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 1994;15(4):322-328
No abstract available.
Intubation, Intratracheal
;
Temporomandibular Joint
7.An experimental study on the diagnosis of esophageal ruptures by pressure change in the esophageal balloon.
Ho Young SONG ; Jin Young CHUNG ; Ja Hong KUH ; Bog Yi KIM ; Soo Wan CHAE ; Bock Choon PARK
Journal of the Korean Radiological Society 1992;28(1):1-7
To make an accurate diagnosis of esophageal rupture during balloon dilatation without the help of esophagograph, an infusion pump, a pressure transducer and a radiopaque esophageal balloon were connected through a three-way connector. The pressure transducer was connected consecutively to an amplifier, a differentiator and a speaker to detect a pressure drop in the esophageal balloon. Under fluoroscopic monitoring, a radiopaque balloon catheter was inserted in the mid-thoracic esophagus of 30 rabbits and inflated with air until the esophagus was ruptured. A pressure drop in the balloon at the time of esophageal rupture was not only recorded graphically, but also was identified through a speaker. To examine esophageal rupture grossly, the rabbits were sacrificed after esophagography. We could detect the time of esophageal rupture during balloon dilatation in all rabbits accurately by observing the pressure drop on the pressure recorder and by hearing the sound made on a speaker. In 8 patients with esophageal stricture, a deflated radiopaque balloon catheter was inserted to the position inside the narrowing point and inflated by injecting air until the 'hourglass' deformity created by the stricture disappeared from the balloon contour which the pressure change in the balloon was monitored with a pressure recorder. The balloon pressures at the time of disappearance of the "hourglass" deformity from the balloon contour ranged from 200 mmHg to 2000 mmHg in 8 patients with esophageal strictures. Esophageal ruptured did not occur in these patients. In conclusion, our results indicate that this new method is not only safe but promising for patients in the future with esophageal strictures. First, it would reduce the chance of mediastinitis in patients of esophageal rupture. Second, esophageal balloon dilatation can be performed more effectively and safely. Third, it is cost-effective. Forth, radiation esposure to the patient can be reduced.
Catheters
;
Congenital Abnormalities
;
Constriction, Pathologic
;
Diagnosis*
;
Dilatation
;
Esophageal Stenosis
;
Esophagus
;
Hearing
;
Humans
;
Infusion Pumps
;
Mediastinitis
;
Methods
;
Rabbits
;
Rupture*
;
Transducers, Pressure
8.An experimental study on the diagnosis of esophageal ruptures by pressure change in the esophageal balloon.
Ho Young SONG ; Jin Young CHUNG ; Ja Hong KUH ; Bog Yi KIM ; Soo Wan CHAE ; Bock Choon PARK
Journal of the Korean Radiological Society 1992;28(1):1-7
To make an accurate diagnosis of esophageal rupture during balloon dilatation without the help of esophagograph, an infusion pump, a pressure transducer and a radiopaque esophageal balloon were connected through a three-way connector. The pressure transducer was connected consecutively to an amplifier, a differentiator and a speaker to detect a pressure drop in the esophageal balloon. Under fluoroscopic monitoring, a radiopaque balloon catheter was inserted in the mid-thoracic esophagus of 30 rabbits and inflated with air until the esophagus was ruptured. A pressure drop in the balloon at the time of esophageal rupture was not only recorded graphically, but also was identified through a speaker. To examine esophageal rupture grossly, the rabbits were sacrificed after esophagography. We could detect the time of esophageal rupture during balloon dilatation in all rabbits accurately by observing the pressure drop on the pressure recorder and by hearing the sound made on a speaker. In 8 patients with esophageal stricture, a deflated radiopaque balloon catheter was inserted to the position inside the narrowing point and inflated by injecting air until the 'hourglass' deformity created by the stricture disappeared from the balloon contour which the pressure change in the balloon was monitored with a pressure recorder. The balloon pressures at the time of disappearance of the "hourglass" deformity from the balloon contour ranged from 200 mmHg to 2000 mmHg in 8 patients with esophageal strictures. Esophageal ruptured did not occur in these patients. In conclusion, our results indicate that this new method is not only safe but promising for patients in the future with esophageal strictures. First, it would reduce the chance of mediastinitis in patients of esophageal rupture. Second, esophageal balloon dilatation can be performed more effectively and safely. Third, it is cost-effective. Forth, radiation esposure to the patient can be reduced.
Catheters
;
Congenital Abnormalities
;
Constriction, Pathologic
;
Diagnosis*
;
Dilatation
;
Esophageal Stenosis
;
Esophagus
;
Hearing
;
Humans
;
Infusion Pumps
;
Mediastinitis
;
Methods
;
Rabbits
;
Rupture*
;
Transducers, Pressure
9.Study on the characteristics of Insight dental x-ray film.
Young Han SONG ; Wan LEE ; Byung Do LEE
Korean Journal of Oral and Maxillofacial Radiology 2003;33(1):21-26
PURPOSE: To investigate the characteristics of the newly marketed, Insight dental X-ray film. MATERIALS AND METHODS: Kodak Ultraspeed (DF-58), E-speed, Agfa Dentus M2, and Kodak Insight (IP-21) films were radiographed using a Trophy intra-oral radiographic machine. 10 step exposure times were prepared and each step exposure was monitored using a FH 40G (ESM Eberline Instruments) dosimeter for each of the 4 types of intra-oral film. All films were manually processed and the radiographic densities at 6 sites of each processed film were measured, and the characteristic curves of each of the 4 types intra-oral films were created utilizing these dosimetric data and radiographic densities, based on ISO 5779. The film contrast, speed, and base plus fog density of Insight film were compared with those of the 3 other films examined in this experiment. RESULTS: E-speed film showed greatest average gradients followed by Insight film. E-speed and Ultraspeed film showed great average gradients at low density levels. Insight film showed the fastest speed followed by E-speed, Dentus M2 and Ultraspeed film. Dentus M2 film showed greatest base plus fog density level followed by Insight film. CONCLUSION: Kodak Insight film showed fastest film speed with comparable film contrast on characteristic curve.
Film Dosimetry
;
Weather
;
X-Ray Film*
10.Effect of the Mixture of Thrombin Powder and Gelfoam Powder on Control of Exposed Cancellous Bone Bleeding.
Sung Wan PARK ; Ha Young CHO ; Seung Myoung LEE ; Seong Hun JEONG ; Jin Kyu SONG ; Suk Jung JANG ; Ho SHIN
Journal of Korean Neurosurgical Society 2000;29(5):664-667
No abstract available.
Gelatin Sponge, Absorbable*
;
Hemorrhage*
;
Thrombin*