No abstract available.
Nails*

PURPOSE: Platelet Rich Plasma(PRP) application is increasing with sinus inlay bone graft, but there is few research with radiographic ananlysis on effect of PRP in maxillary sinus. The author investigated the amount of bony changes of maxillary sinus for dental implantation among the patients with maxillary inlay graft. MATERIALS AND METHODS: With 10 patients who were treated with sinus inlay autologous bone grafting combined with PRP technique, and with 5 patients who were treated with sinus inlay grafting only without PRP, the panoramic radiographys which were taken at preoperation, immediate postoperation, 3months postoperation, and 4 months postoperation(a month after dental implantation)periods were analysed. The films had been scanned, and then proceeded throughout image analysis system. The bone density of maxillary grafted sites was compared with adjacent tooth enamel density and remeasured according to density luminosity of each film. The density changes on PRP group and bone graft only group were an lysed with non-parameteric statistics method. RESULTS: In PRP combined patients group, bone density on postoperation periods was increased totally. The remarkable enhanced change of bone density was observed on 3 months postoperation period, thereafter the increasing rate was slightly reduced . In only bone graft patients group, bone density on postoperation periods was also increased compared with preoperation period, but the bone density of 4 months postoperation period was decreased compared with 3 months postoperation period. The amount of bone density on PRP group was significantly changed according to periods in contrast to bone graft only group. CONCLUSION: The bone density on PRP group was remarkably increased at 3 months postoperation compared to bone graft only group and it was seemed to be associated with more new bone formation, less grafted bone resorption at bone grafted sites with PRP.
Blood Platelets* ; Bone Density ; Bone Resorption ; Bone Transplantation ; Dental Enamel ; Dental Implantation ; Dental Implants ; Humans ; Inlays ; Maxillary Sinus ; Osteogenesis ; Platelet-Rich Plasma ; Tooth ; Transplants

No abstract available.
Humans ; Korea* ; Multiple Birth Offspring*

PURPOSE: To compare central keratometric values (K-values) measured at the pupillary center by Orbscan II (R) topography (Orbtek, Bausch & Lomb, USA) with preexisting methods for K-values in patients who have been treated with laser in situ keratomileusis (LASIK). METHODS: A total of 36 consecutive eyes of 25 patients who were treated with LASIK for myopia have been followed up for more than 1 year. Central K-values measured by Orbscan II(R) topography, K-values measured with autorefractokeratometer, and refraction-derived K-values were compared . RESULTS: The mean central keratometric K-value measured by Orbscan II (R) topography was 39.65+/-1.94 (35.82 to 43.45) diopter (D), and was not statistically significantly different from the mean refraction derived K-value which was 39.63+/-1.95 D (35.95 to 43.41) (p>0.05), but was statistically lower than the mean K-value measured with autorefractokeratometer which was 40.23+/-1.76 D (36.56 to 43.69) (P<0.05). CONCLUSIONS: In patients who have been treated with LASIK for myopia, central keratometric K-value measured with Orbscan II R topography is not statistically significantly different from refraction derived K-value, but is lower than K-value measured with autorefractokeratometer.
Humans ; Keratomileusis, Laser In Situ* ; Myopia

PURPOSE: To report a previously unreported secondary Mooren's ulcer associated with simultaneous sur-gery for cataract and pterygium. METHODS: Case report. Five days after simultaneous surgery for cataract and pterygium, an 86-year-old woman developed severe pain and a superior and inferior peripheral corneal ulcer that had the characteristic clinical appearance of Mooren's ulcer. RESULTS: Peripheral corneal ulcer is rapidly progressive, painful, beginning at the limbus with a gray, overhanging, infiltrated edge at its central border. She had no history of collagen-vascular disease, negative serologic test result, and negative culture for pathogen. Surgical trauma may have been the inciting factor in development of the ulcer. She was treated with topical and systemic steroids. After complete control of the inflammation, the patient remained in remission.
Aged, 80 and over ; Cataract* ; Corneal Ulcer* ; Female ; Humans ; Inflammation ; Pterygium* ; Serologic Tests ; Steroids ; Ulcer*

Joint cartilage defects do nor heal and lead to post traumatic arthritis or degenerative joint diseases. The clinical problem is that so far, we have been unable to induce true cartilage healing and regeneration. Experimental attempts at repairing joint cartilage defects with various means have usually led to the formation of cartilage-like fibro-hyaline scars. We have recently shown that treatment of lyophilized allografts with recombinant osteoinductive protein-1 (OP-1 also known as BMP 7) induces the regeneration of articular cartilage over the head of lyophilized hemijoint allografts. A standardized 3 mm circular defect was created on the articular surface of the knee joint of 12 NZW rabbits. The defect was into carried as full thickness down to subchondral bone. In a blinded and randomized fashion, the rabbits were divided into four groups. In group l (n=4), the ulcer was left untreated; in group II (n=3), the ulcer was reconstructed with a 3 mm disk of lyophilized cartilage allograft; in group lll(n=2), the allograft used was pre-treated with low dose (20 pg) OP-1, and in group IV (n=3), the allograft used was pre-treated with high dose(100 pg) OP-1. The range of motion was normal in all groups. The gross appearance of the untreated defect was still depressed and appeared like a big crater. The lyophilized allograft has a level surface which was not smooth In high dose OP-1 group, the defect was healed much better than the lower dose treated OP-1 group. Under the histologic examination, untreated ulcer group never heals to the cartilage of around defect, a fissure always remains. Lyophilized allograft and low dose OP-1 treated lyophilized allograft groups seem to inhibit healing and there is fibrous scar in ulcer. In the high dose OP-1 treated lyophilized allograft group, new cartilage heals very well all around of the defect margin without fissure. The cartilage has a normal sequence of cellular maturation. In conclusion, in this study of full thickness joint cartilage defects, we confirmed finding in the literature that untreated defect heals with cartilage like tissue which does not fuse with the surrounding cartilage. We found that lyophilized allograft prevents healing of defect, while lyophilized allograft treated with high dose (100 pg) OP-1 seems to induce regeneration of articular cartilage that heals very well to the surrounding defect without any crack or fissure.
Allografts* ; Arthritis ; Cartilage* ; Cartilage, Articular* ; Cicatrix ; Head ; Joint Diseases ; Joints ; Knee Joint ; Rabbits ; Range of Motion, Articular ; Regeneration ; Ulcer

Sixteen patients who had radial head fractures were treated with open reduction and internal fixation using Herbert screws (10 patients), and with silastic prosthetic replacement (6 patients) from March, 1992 to December, 1994 in Chungnam National University hospital. The average duration of follow up was 19.5 months. The purpose of this study is to examine the role of Herbert screw fixation and silicone replacement arthroplasty and to asscess the clinical results of two groups functionally, radiologically in raidial head fractures. By functional rating index (modified After B.F. Morrey et al), the results were classified as excellent (9 patients), good (6 patients), fair (No patient) and poor (1 patient). Nine of the ten patients treated by open reduction and internal fixation using Herbert screws had resulted in excellent or good. All patients were inserted silastic implants were showed excellent or good results. Especially, in Mason Type III radial head fractures, three of four patients treated by Herbert screws and all 5 patients treated by silastic prosthesis were considered to excellent or good results. We concluded that Herbert screw fixation or silastic prosthetic replacement had satisfactorily appeared to be the alternative treatment option for Mason Type III radial head fractures.
Arthroplasty, Replacement ; Chungcheongnam-do ; Follow-Up Studies ; Head* ; Humans ; Prostheses and Implants ; Silicones

Endodontic microsurgery is defined as the treatment performed on the root apices of an infected tooth, which was unresolved with conventional root canal therapy. Recently, the advanced technology in 3-dimensional model reconstruction based on computed tomography such as cone beam computed tomography has opened a new avenue in application of personalized, accurate diagnosis and has been increasingly used in the field of dentistry. Nevertheless, direct intra-oral localization of root apex based on the 3-dimensional information is extremely difficult and significant amount of bone removal is inevitable when freehand surgical procedure was employed. Moreover, gingival flap and alveolar bone fenestration are usually required, which leads to prolonged time of surgery, thereby increasing the chance of trauma as well as the risk of infection. The purpose of this case report is to present endodontic microsurgery using the guide template that can accurately target the position of apex for the treatment of an anterior tooth with calcified canal which was untreatable with conventional root canal therapy and unable to track the position of the apex due to the absence of fistula.
Apicoectomy ; Cone-Beam Computed Tomography ; Dentistry ; Diagnosis ; Fistula ; Humans ; Microsurgery ; Printing, Three-Dimensional ; Root Canal Therapy ; Tooth

PURPOSE: The purpose of this study is to investigate working time of nurses in urban public health center branch, especially for nurses for visiting health service and chronic disease management. METHOD: Daily note, which was developed by this research team, was distributed to nurses at 7 urban public health center branches to be filled out them for 2 weeks during 2 month from June 2007 to August 2007. We analyzed 121 daily notes recorded by visiting nurses and 65 daily notes written by chronic disease management nurses were analyzed. RESULTS: The total working time for visiting nurses at urban public health center branches was 589.85 minutes per day on the average. They spent 147.13 min in actual visiting nursing services, 149.36 min in documenting, 66.94 in preparing, 77.69 min in transferring, and 11.84 min in referring. The total working time for chronic disease management nurses at urban public health center branches was 582.92 minutes per day on the average. They spent 148.77 min in actual chronic disease management services, 120.62 min in documenting, 42.46 min in group education, 37.38 in preparing, and 10.38 min in referring. CONCLUSION: Based on the results of this study, it is recommended to improve documenting systems and to increase community resources linkage were recommended through the results of this study. The results of this study are expected to be used to plan staffing at urban public health center branches in the future.
Chronic Disease* ; Education ; Health Services* ; Korea ; Nurses, Community Health ; Nurses, Public Health ; Nursing Services ; Public Health*

PURPOSE: This study was done to examine relationships between nurse staffing level and postsurgical patient outcomes using inpatient database from the National Health Insurance. METHODS: Records of 111,491 patients who received one of 12 types of surgery between January and December, 2009 were identified and analyzed in this study. Nurse staffing level was measured using adjusted nurse staffing grades from 0 to 7. Patient outcomes were defined as in-hospital mortality, or pneumonia, sepsis, or urinary tract infection after surgery. Logistic regression analyses estimated by Generalized Estimation Model, were used to analyze the association between nurse staffing level and patient outcomes. RESULTS: An inverse relationship was found between nurse staffing and patient mortality. Compared with patients who were cared for in hospitals with the highest nurse staffing (Grades 0-1), increases in the odds of dying were found in those with Grades 6-7 [OR (odds ratio)=2.99, 95% CI (confidence interval)=1.94-4.60], those with Grades 4-5 (OR=1.78, 95% CI=1.24-2.57) and those with Grades 2-3 (OR=1.57, 95% CI=1.25-1.98). Lower nurse staffing level was also associated with higher number of cases in pneumonia and sepsis. CONCLUSION: Policies for providing adequate nurse staffing is required to enhance quality of care and lead to better perioperative patient outcomes.
Adult ; Aged ; Aged, 80 and over ; Female ; *Hospital Mortality ; Hospitals ; Humans ; Logistic Models ; Male ; Middle Aged ; Nursing Staff, Hospital/*supply & distribution ; Odds Ratio ; Outcome Assessment (Health Care) ; Pneumonia/etiology/*mortality ; Sepsis/etiology/*mortality ; Severity of Illness Index ; Surgical Procedures, Operative/adverse effects ; Urinary Tract Infections/etiology/*mortality