No Abstract Available.
Sutures* ; Tibia*

Although there are various methods of operative treatment for hony mallet finger, the operative technique is not so easy and complications such as joint stiffness, sott tissue prohlems, infection, change of nail shape and arthrosis are common. The authors performed operations for 26 cases of hony mallet fingers, fixing the hony frapment by Kirschner wire, pull-out wire suture and miniscrew respectively, from Jan. l988 to Jun. l996. The results were as follows. l. According to Niechajev's classification. there were 3 cases of type B, 7 cases of type C, l4 cases of type D, and 2 cases of type E. And 11 cases were accompanied hy crushing injury. 2. Involved fingers were third finger in 11cases, fit'th finger in 7 cases, fourth finger in 5 cases, second finger in 2 cases. and thumb in I case. 3. The hony mallet finger was caused hy occupational injury in l6 cases, direct blow in 7 cases and sports injury in 3 cases. 4. The fractured fragment was fixed hy Kirschner wire in 9 cases, by pull-out suture in 9 cases and by miniscrew in 8 cases. 5. The results were evaluated hy Kanies scale. Sixteen cases had satisfactory results. Seven cases (87.5%) were satisfactory in miniscrew fixations. 5 cascs (55.6%) in pull-out wire suture methocls and 2 cases (22.2%) in Kirschner wire tixations. 6. The complications were joint incongruity in 4 cases, dorsal prominece in 6 cases, painful limitation of motion in 2 cases which were treated by arthrodesis, pin site infection in 2 cases and hreakage of wire suture in 1 case. 7. The miniscrew fixation offered relatively firm fixation, low complication rate, and good results. so it can be considered as one of the good methods of treatment for hony mallet finger.
Arthrodesis ; Athletic Injuries ; Classification ; Fingers* ; Joints ; Occupational Injuries ; Sutures ; Thumb

No abstract available.
Fetal Death* ; Umbilical Cord*

Since its introduction in 1993, Mineral Trioxide Aggregate (MTA) has been shown to be superior to others in sealing, biocompatibility, and many other aspects of clinical endodontics. MTA is primarily Portland cement with bismuth oxide as a radiopacitifier. Although some studies suggested that the reasonable-priced Portland cement could be used instead of MTA, but MTAs are different from Portland cement in its composition, especially in heavy metal contents. Therefore, clinicians should be meticulous adapting the Portland cement as a MTA substitute.
Aluminum Compounds ; Bismuth ; Calcium Compounds ; Drug Combinations ; Endodontics ; Glutamates ; Guanine ; Oxides ; Silicates ; Pemetrexed

Metastatic tumors to the oral cavity from other parts of the body are rarely reported and representing about 1-4% of all oral malignancies. The most common primary tumor site of oral metastatic tumor was the breast followed by the lung, kidney, thyroid, prostate, and colon. Oral metastasis of primary esophageal carcinoma is extremly rare and only 11 cases were reported till now. Only one case was metastased to the maxilla. We experienced a mteastatic squamous cell carcinoma to the maxilla and the scalp in a 52-year-old male patient who previously diagnosed as esophageal carcinoma and performed operation with post operative radiation therapy. We report the case with literature review.
Breast ; Carcinoma, Squamous Cell ; Colon ; Humans ; Kidney ; Lung ; Male ; Maxilla* ; Middle Aged ; Mouth ; Neoplasm Metastasis ; Prostate ; Scalp* ; Thyroid Gland

The purpose of this study was to evaluate the effect of EDTA irrigant according to application time and temperature. 31 human mature extracted teeth with a single canal were sectioned with microtome in 3mm thickness and gained 62 samples of root canals. They were distributed randomly into 6 groups of 10 specimens each and control group of 2 specimens. Each specimen was prepared with GT rotary file (Dentsply, Maillefer Co., Swiss) and irrigated with 3 ml sodium hypochlorite every minute. Then smear layer was removed with EDTA solution (PULPDENT(R), PULPDENT Co., USA.) except two control specimens. Specimens of each group were irrigated with 17% EDTA. All specimens were split longitudinally and prepared for examination by scanning electron microscopy. A set of reference micrographs was used to award a debris score as follows: 0 = no smear layer, all tubules clean and open; 1 = no superficial smear layer, tubule openings visible, but some contain debris plug or soft tissue remnants; 2 = moderate smear layer, some tubules open and others closed; 3 = heavy smear layer, most/all tubule openings obscured. Results were evaluated with Kruskal-Wallis test to determine whether there was statistically significant difference among six groups. Pairs of groups were analyzed using the Student-Newman-Keuls Method and Mann-Whitney test. The results were as follows: 1. Control specimens showed heavy smear layer at the canal walls. 2. Among the groups applied with EDTA for 2 minutes, group 1 showed the heaviest smear layer, and there was statistically significant difference between group 1 and the other groups(p<0.05). 3. Among the groups applied with EDTA for 5 minutes, group 4 and group 6 showed smear layer, but there was no significant difference between them. 4. Among the groups applied with EDTA for the same temperature, group 1 showed heavier smear layer than group 4, and there was statistically significant difference(p<0.05). 5. Among the groups applied with EDTA for the same temperature, group 2 showed heavier smear layer than group 5 and group 3 showed heavier smear layer than group 6. But there was no statistically significant difference among them. From the results above, it could be concluded, EDTA solution is effective in removing of smear layer when it is applied for 5 minutes. If EDTA is applied for 2 minutes, it should be applied above room temperature.
Awards and Prizes ; Calcium Hydroxide ; Dental Pulp Cavity ; Edetic Acid ; Humans ; Microscopy, Electron, Scanning ; Smear Layer ; Sodium Hypochlorite ; Tooth

PURPOSE: To evaluate and compare the difference of predictive post-operative refraction preoperatively and real post-operative refraction among five types of intraocular lens. METHODS: We reviewed retrospectively 567 cataractous eyes that had undergone phacoemulsification or ECCE with posterior chamber intraocular lens (IOL) implantation by the same surgeon. Applied IOLs were AMO(R) Phacoflex(R) II SI40NB, Acrysof(R) MA60BM, Sensar(TM) AR40e, CeeOn(TM) 811B and CeeOn(TM) 720A. Prediction of post-operative refraction (predictive refraction) was calculated by the SRK/T formula with manufactured A constant. Post-operative manifest refraction (real refraction) was done at least 2 months postoperatively. We compared the difference between the predictive refraction and the real refraction by paired t-test. RESULTS: Total studied eyes were 390 eyes. In all groups, more myopic shift were observed than predicted. In AMO(R) Phacoflex(R) II SI40NB group, statistically significant difference was seen in postoperative manifest refraction over the predictive refraction as much as mean 0.46 diopter myopically (p<0.05, paired t-test), but others were not. In the AR40e implanted group, the error of predictive refraction was the smallest among groups. CONCLUSIONS: Prediction of postoperative refractive state was influenced by various clinical factors. Using a revised A constant, predictive error would be decreased. We recommend that every cataract surgeon had better have one's original A constant over each IOL and A constant may be revised when major surgical or biomedical measurement settings were changed.
Cataract ; Lenses, Intraocular* ; Phacoemulsification ; Refractive Errors ; Retrospective Studies

The C-shaped canal system is an anatomical variation mostly seen in mandibular second molars, although it can also occur in maxillary and other mandibular molars. The main anatomical feature of C-shaped canals is the presence of fins or web connecting the individual root canals. The complexity of C-shaped canals prevents these canals from being cleaned, shaped, and obturated effectively during root canal therapy, and sometimes it leads to an iatrogenic perforation from the extravagant preparation. The purpose of this study was to provide further knowledge of the anatomical configuration and the minimal thickness of dentinal wall according to the level of the root. Thirty extracted mandibular second molars with fused roots and longitudinal grooves on lingual or buccal surface of the root were collected from a native Korean population. The photo images and radiographs from buccal, lingual, apical direction were taken. After access cavity was prepared, teeth were placed in 5.25% sodium hypochlorite solution for 2 hours to dissolve the organic tissue of the root surface and from the root canal system. After bench dried and all the teeth were embedded in a self-curing resin. Each block was sectioned using a microtome (Accutom-50, Struers, Denmark) at interval of 1 mm. The sectioned surface photograph was taken using a digital camera (Coolpix 995, Nikon, Japan) connected to the microscope. 197 images were evaluated for canal configurations and the minimal thickness of dentinal wall between canal and external wall using' Root Thickness Gauge Program' designed with Visual Basic. The results were as follows: 1. At the orifice level of all teeth, the most frequent observed configuration was Melton's Type C I (73%), however the patterns were changed to type C II and C III when the sections were observed at the apical third. On the other hand, the type C III was observed at the orifice level of only 2 teeth but this type could be seen at apical region of the rest of the teeth. 2. The C-shaped canal showed continuous and semi-colon shape at the orifice level, but at the apical portion of the canal there was high possibility of having 2 or 3 canals. 3. Lingual wall was thinner than buccal wall at coronal, middle, apical thirds of root but there was no statistical differences.
Dental Pulp Cavity ; Dentin ; Hand ; Molar* ; Root Canal Therapy ; Sodium Hypochlorite ; Tooth

To evaluate the diagnostic accuracy of two-dimensional echocardiogrphy(2-D echo) in ventricular septal defect, location and size of the defects, estimated right ventricular systolic pressure and associated cardiac anomaly were compared to the operative findings in 139 children operated for correction of ventricular septal defect at Severance Hospital from Jan. 1983 to June 1987. In addition, postoperative complications and mortality cases were anlysed. The following results were obtained; 1) Perimembranous defects were 82 cases(66.1%), subarterial infundibular defects 33 cases(26.6%), and muscular defect was found in only 1 case(0.8%). The accuracy of 2-D echo in localizing the defects was 84.2%. 2) In 79.2% of the patients, the defects were moderate to large in size, and actual size measured at operation was larger than that obtained by echocardography in general. 3) The estimated right ventricular systolic pressure was correlated(r=0.650) with that measured at the operating field. 4) Combined cardiac anomalies were patent ductus arteriosus(22 cases), atrial septal defect(3 cases), valvular pulmonic stenosis(2 cases) and interventricular septal aneurysm(2 cases). The sensitivity of 2-D echo in detecting these anomalies was 65.5% and the specificity was 96.4%. 5) Among 32 patients who had postoperative complications, in two thirds, there were pulmonary complication including lung atelectasis(16 cases), pleural effusion(5 cases)and pneumonia(5 cases). 6) Operative mortality was 2.9%(4 cases). The causes of death were low cardiac output state due to left ventricular myocardial failure in 3 patients and respiratory failure from asphyxia in one case. In conclusion, with close cooperation with cardiac surgeons, there will be few problems in diagnosing and operating patients with ventricular septal defect on the basis of two-dimensional echocardiographic findings without invasive procedures, such as cardiac catheterization, even with pulmonary hypertension, unless Eisenmenger syndrome is complicated.
Asphyxia ; Blood Pressure ; Cardiac Catheterization ; Cardiac Catheters ; Cardiac Output, Low ; Catheterization* ; Catheters* ; Cause of Death ; Child* ; Echocardiography* ; Eisenmenger Complex ; Heart Failure ; Heart Septal Defects, Ventricular* ; Humans ; Hypertension, Pulmonary ; Lung ; Mortality ; Postoperative Complications ; Respiratory Insufficiency ; Sensitivity and Specificity

Supravalvular aortic stenosis may be defined as an obstructive congenital deformity of the ascending aorta which originates just distal to the level of the origins of the coronary arteries. It may be localized or diffuse, and includes a wide spectrum of pathologic changes. A 16 years old school boy was admitted because of exertional dyspnea for 6 years. Clinical diagnosis of supravalvular and valvular aortic stenosis with bicuspid aortic valves and myocardial hypertrophy was made by echocardiography and angiocardiography. Surgical correction was performed successfully. We presented a case of supravalvular and valvular aortic stenosis with a review of literatures.
Adolescent ; Angiocardiography ; Aorta ; Aortic Stenosis, Supravalvular ; Aortic Valve ; Aortic Valve Stenosis* ; Bicuspid ; Congenital Abnormalities ; Coronary Vessels ; Diagnosis ; Dyspnea ; Echocardiography ; Humans ; Hypertrophy ; Male