No abstract available.
Cicatrix* ; Endometriosis* ; Female

Sagittal spinal balance is an essential factor for not only the external appearance, but also for the spine's function. Fixed sagittal imbalance is the result of different causes, and this generally requires surgical treatment. Sagittal imbalance is mainly caused by decreased lumbar lordosis and increased thoracic kyphosis, and it can also be influenced by the pelvic incidence and flexion contracture of the hip and knee joints. So, a careful understanding and clinically considering the many factors and compensatory mechanisms that are associated with sagittal imbalance are needed. Proper surgical treatments provide a satisfactory outcome for these patients and good radiographic results. Correction of sagittal imbalance generally requires spinal osteotomy and long segment fusion. For the surgical treatment, we should consider the perioperative and postoperative complications of osteotomy and long segment fusion and then make proper decisions for the range of fusion of the proximal and distal sides and the selection of the correct method of osteotomy, the ideal correction angle and the best method of internal fixation. Problems such as loss of correction may occur postoperatively due to kyphotic change and pseudarthrosis of the proximal and distal sides. Therefore, we need to conduct a thorough analysis and make a detailed plan for the surgical approach. We should also study and understand the radiological factors when treating sagittal spinal balance because not only the spine, but also the pelvis, hip and knee joints are involved in forming the sagittal balance
Animals ; Contracture ; Hip ; Humans ; Incidence ; Knee Joint ; Kyphosis ; Lordosis ; Osteotomy ; Pelvis ; Postoperative Complications ; Pseudarthrosis ; Spine

No abstract available.
Constriction, Pathologic* ; Stents*

STATEMENT OF PROBLEM: Use of fiber composite technology as well as development of nonmetal implant prosthesis solved many problems due to metal alloy substructure such as corrosion, toxicity, difficult casting, expensiveness and esthetic limit. After clinical and laboratory test, we could find out that fiber-reinforced composite prostheses have good mechanical properties and FRC can make metal-free implant prostheses successful. PURPOSE: The purpose of this study is to evaluate the flexural strength of implant fixed prosthesis using fiber reinforced composite. MATERIAL AND METHODS: 2-implant fixture were placed in second premolar and second molar area in edentulous mandibular model, and their abutments were placed, and bridge prostheses using gold, PFG, Tescera, and Targis Vectris were fabricated. Tescera was made in 5 different designs with different supplements. Group I was composed by 3 bars with diameter 1.0mm and 5 meshes, 2 bars and 5 meshes for Group II, 1 bar and 5 meshes for Group III, and only 5 meshes were used for Group IV. And Group V is composed by only 3 bars. Resin (Tescera) facing was made to buccal part of pontic of gold bridge. All of gold and PFG bridges were made on one model, 5 Targis Vectris bridges were also made on one model, and 25 Tescera bridges were made on 3 models. Each bridge was attached to the test model by temporary cement and shallow depression was formed near central fossa of the bridge pontic to let 5 mm metal ball not move. Flexual strength was marked in graph by INSTRON. RESULTS: The results of the study are as follows. The initial crack strength was the highest on PFG, and in order of gold bridge, Tescera I, Tescera II, Targis vectris, Tescera IV, Tescera III, and Tescera V. The maximum strength was the highest on gold bridge, and in order of PFG, Tescera I, Tescera IV, Tescera II, Targis vectris, Tescera III, and Tescera V. CONCLUSIONS: The following conclusions were drawn from the results of this study. 1. Flextural strength of implant prosthesis using fiber reinforced composite was higher than average posterior occlusal force. 2. In initial crack strength, Tescera I was stronger than Tescera V, and weaker than PFG. 3. Kinds and number of auxillary components had an effect on maximum strength, and maximum strength was increased as number of auxillary components increased. 4. Maximum strength of Tescera I was higher than Targis vectris, and lower than PFG.
Alloys ; Bicuspid ; Bite Force ; Corrosion ; Denture, Partial, Fixed ; Depression ; Linear Energy Transfer ; Molar ; Prostheses and Implants*

PURPOSE: The purpose of this study is to find the effect of rare earth magnet's magnetic field of to the osteoblast around the implant by the means of observation number, and distribution around the implant which is connected to the permanent magnet but not, counted and compared by the number of cells attached to the surface of the implant. MATERIAL AND METHOD: The permanent magnets, made in the healing cap form, were connected to the implant fixture, and placed on the culture plate, The osteoblast-like cell: MC3T3-E1 were used for cell culture. As the control group, the implant were connected to normal healing cap, and cultured in the same conditions. 48 hours later, using inverted microscope, the number and distribution of osteoblast around the implant were observed, and 72 hours later, the number of the cells attached to the implant were counted. RESULTS: As a result, the implant connected to the permanent magnet had proved to have a more concentrated cell distribution rate than the control group. The implant connected to the permanent magnet, neck area: which has about 10 gauss magnetic force, had more cells than apex area. The implant connected to the permanent magnet had proven to attach to the osteoblast more productively than control group's implant. CONCLUSIONS: This research showed that the magnetic field of the permanent magnet affected the distribution and growth rate of the osteoblast around the implant. In order to support this study, it also had need to monitor the progress of the permanent magnet specifically shown on the neck area, which has10 gauss magnetic force. So after additional research on the distribution and attachment of the cells, and further more, on bone formation, it will be concluded that the clinical applications, such as immediate loading of implant treatment are possible.
Cell Culture Techniques ; Dental Implants* ; Magnetic Fields ; Neck ; Osteoblasts ; Osteogenesis

PURPOSE: This study was to investigate symptom occurrence related to the disease characteristics of patients with cancer. METHOD: A total of 301 patients with cancer participated in this study. The participants were recruited from University Hospitals located in Seoul, Wonju, Kwangju, Daegu, and Pusan. Data collection was performed by using a questionnaire on symptom occurrence. The obtained data was analyzed using SPSS computer program that included descriptive statistics, Pearson correlation, one-way ANOVA, and t-test. 1) Yonsei University (Wonju College of Medicine) 2) Ajou University 3) Home Health-Hospice Research Institute at Yonsei University 4) Research Institute of Nursing Science at Chonnam National University 5) The Institute of Nursing Science at Kyungpook National University 6) Research Institute of Wholistic Nursing Science at Kosin University. RESULT: The mean score of fatigue was the highest (3.24), followed by loss of appetite, lack of concentration, change in appearance, pain, insomnia, change in bowel pattern, nausea/ vomiting, coughing, and dyspnea. Most symptoms were significantly correlated with each other. The level of symptom occurrence in patients with lung cancer or cervix cancer was significantly higher than the level in patients with stomach cancer. Patients receiving radiation therapy or a combined therapy of radiation therapy and chemotherapy experienced significantly higher level of symptom occurrence than those receiving chemotherapy only. Also, female patients experienced higher level of symptom occurrence than male patients did. CONCLUSION: The sites of cancer, types of treatment, and gender influence the level of symptom occurrence of patients with cancer. Thus, these variables should be considered when assessing and planing for symptom occurrence of patients with cancer.
Academies and Institutes ; Adult* ; Appetite ; Busan ; Cough ; Daegu ; Data Collection ; Drug Therapy ; Dyspnea ; Fatigue ; Female ; Gangwon-do ; Gwangju ; Gyeongsangbuk-do ; Hospitals, University ; Humans ; Jeollanam-do ; Lung Neoplasms ; Male ; Nursing ; Seoul ; Sleep Initiation and Maintenance Disorders ; Stomach Neoplasms ; Uterine Cervical Neoplasms ; Vomiting ; Surveys and Questionnaires

PURPOSE: In cases when implant supported overdenture is made by using standard size implant, additional procedure such as bone surgery and bone grafting can be required. And it gives burden to doctor and patient in terms of cost. Therefore, it is necessary to find the implant therapy for the edentulous patients in making denture with accordable cost and simple procedure. MATERIALS AND METHODS: Edentulous patients with upper and lower dentures participated in this study. Before the operation, survey about patient's satisfaction to the existing dentures was carried out. Surgical procedures included four small diameter implants installation anterior area and immediate loading. One and three month after the procedure, the same survey about patient's satisfaction was carried out, and radiography was taken. RESULTS: We are doing research to the nine patients. Survival rate is 97.2 percent. The comparison of patient's satisfaction before and after surgery is performed based on oral health impact profile 49. We analyze mainly with masticatory discomfort, retention, aesthetics, social problem, psychological discomfort problems. As a result, satisfaction level is increased at all factors. Retention is the most increased satisfactory factor followed by mastication difficulty, pronunciation, psychological discomfort, social discomfort, aesthetics in order. Marginal bone loss is 0.21 mm at 12 weeks after implant placement. CONCLUSION: This research reveals that the denture supported by mini dental implant increases patient's satisfaction. This study will be continued with more patients for a long time and we are scheduled for taking additional radiography to check whether peri-implant bone resorption occurs or not.
Bone Resorption ; Bone Transplantation ; Dental Implants ; Denture, Overlay ; Dentures ; Esthetics ; Humans ; Mastication ; Oral Health ; Retention (Psychology) ; Social Problems ; Survival Rate

PURPOSE: For decades dental implants have been used widely in the field of prosthetic dentistry. However there is confusion when establishing treatment plans in cases where some teeth are remained but an insufficient number of implants can be used due to limited anatomical status and ecomomical problems. Many clinicians have tried to connect natural teeth and implants, and it still has controversy. But, there have been few studies on mechanical analysis of connecting natural teeth and implants with konus telescopic removable partial dentures. The purpose of this study was to analyze the stress distribution of prosthesis, abutment and alveolar bone when teeth and implants were connected with the konus telescopic denture, by means of 3-dimensional finite element analysis. MATERIAL AND METHODS: The assumption of this study was that there were 2 mandibular canine (11 mm in length, 4 mm in diameter) and 2 implants(10 mm in length, 4 mm in diameter) which are located in the second premolar region. The mandible, teeth, implants, abutments, and connectors are modeled, and analyzed with the commercial software, ANSYS Version 8.1(Swanson, Inc., USA). The control group used implants instead of natural teeth. 21038 elements, 23544 nodes were used in experimental group and 107595 elements, 21963 nodes were used in control group, Stress distribution was evaluated under 150 N vertical load on 3 experimental conditions - between teeth and implants (Load case 1), posterior to implants (Load case 2), between natural teeth (Load case 3). RESULTS: 1. In all load cases, higher von mises stress value was observed in the experimental group. 2. Maximum von miss stress observed in all load cases and all locations were as follows ; a. 929.44 Mpa in the experimental group, 640.044 Mpa in the control group in outer crown and connector - The experimental group showed 1.45 times high value compared with the control group. b. 145,051 Mpa in the experimental group, 142.338 Mpa in the control group in abutment - The experimental group showed 1.02times high value compared with the control group. c. 32.489 Mpa in the experimental group, 25.765 Mpa in the control group in alveolar bone - The experimental group showed 1.26times higher value compared with the control group. 3. All maximum von mises stress was observed in load case 2, and maxim von mises stress in alveolar bone was 32.489 Mpa at which implant failure cannot occur. 4. If maximum von mises stress is compared between two groups, the value of the experimental group is 1.02 times higher than the control group in abutment, 1.26 times higher than the control group in alveolar bone. CONCLUSION: If natural teeth and implants are connected with the konus telescopic denture, maximum stress will be similar in abutment, 1.26 times higher in alveolar bone than the control group. With this result, there may be possible to make to avoid konus telescopic dentures where natural teeth and implants exist together.
Bicuspid ; Crowns ; Dental Implants ; Dentistry ; Denture, Partial, Removable ; Dentures ; Finite Element Analysis ; Mandible ; Prostheses and Implants ; Telescopes ; Tooth

Infantile digital fibromatosis(IDF) is a rare, benign fibrous tumor, first described in 1965 by Reye. IDF may occur single or multiple lesions exclusively on the fingers or toes, rare occurrence outside the digit have been reported. This tumor grow slowly and may adhere to the deeper tissue, and may lead to deformity of the digit, but do not distant metastasis or dissemination. There is a marked tendency for recurrence after surgical excision. Up to now, only 6 cases have been reported in the literature showing spontaneous regression. We experienced a case of infantile digital fibromatosis located on hypothenar area at birth. Also that spontaneous regressed at 13 months of age. We reported a case of IDF showing spontaneous regression with brief review of related literature.
Congenital Abnormalities ; Fibroma* ; Fingers ; Neoplasm Metastasis ; Parturition ; Recurrence ; Toes

STATEMENT OF PROBLEM: The use of permanent magnetics is increasing in implant dentistry. PURPOSE: This study is to know the effect of permanent magnetics on bone matrix formation of osteoblasts. MATERIALS AND METHODS: The konus abutment-shaped permanent magnetics were connected to the implant fixture, and placed on the culture plate. The osteoblast-like cell: Mc3T3-E1 were used for cell culture. As the control group, the implants were connected to titanium healing caps, and cultured in the same conditions of experimental group. After 3, 7, 14 days, cells were cultured, and we measured and compared the amount of collagen type I, osteocalcin, which is bone matrix protein by Western immunoblotting analysis. RESULTS: As a result of Western immunoblotting analysis for estimating the amount of bone extracellular matrix, there was no difference between osteoblast of the experimental group and the control group during 3 and 7day-osteoblast culturing. However when cells were cultured for 14days, the amount of bone extracellular matrix was increased, on the experimental group. CONCLUSION: From these results, magnetic field of permanent magnetics might have effect on bone formation of osteoblast, especially at initial stage of implant placement. Therefore, their clinical application for implant or bone graft could be possible.
Blotting, Western ; Bone Matrix ; Cell Culture Techniques ; Collagen Type I ; Dental Implants* ; Dentistry ; Extracellular Matrix* ; Magnetic Fields ; Osteoblasts ; Osteocalcin ; Osteogenesis ; Titanium ; Transplants