• Journal of Korean Dental Science
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• v.6 no.1
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• pp.27-33
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• 2013

The introduction of osseointegrated dental implants in dentistry brought about a new era in everyday dental practice. For the past 50 years, prosthetic restoration with implant-supported prosthesis has developed into a viable and predictable treatment option. Alongside the increasing use of dental implants is the occurrence of many complications during implant placement (surgery), in the mechanical or prosthetic problem, and in the biological aspect. In particular, abutment or screw fracture as one of the mechanical complications can put the dentist in a tight spot in a clinical situation. It is hard to remove the fractured abutment and screw to restore it properly. Therefore, it is very important that clinicians consider possible complications in advance and make an appropriate treatment plan. We discuss cases of abutment fracture and mechanical/prosthetic complications together with the causes and solutions.

• Journal of Technologic Dentistry
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• v.40 no.3
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• pp.183-190
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• 2018

Purpose: The purpose of this study was to evaluated the process of model analysis, design, and production for a full mouth prosthetic rehabilitation of function, esthetics, and pronunciation. Methods: This is a case report of class III malocclusion with a severe anterior incisor occlusion and a prosthetic treatment of patient with poor occlusion of posterior teeth. A provisional restoration based on the diagnostic wax-up was applied to the patient. And then functions, esthetics, and occlusal stability were observed during 4 week tracking period. Final restorations were delivered and evaluated based on a systematic analysis, diagnosis and treatment plan. Results: We confirms that this case study obtained the satisfactory results in terms of functions and esthetics. Conclusion : If we can give the patient the continuous evaluation and progress monitoring, we expect the dentist and the dental technician to design the prosthesis successfully.

• The Journal of Advanced Prosthodontics
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• v.2 no.3
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• pp.88-91
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• 2010

Mandible fractures belong to the most common fractures encountered in maxillofacial trauma. Because mandible is such a unique structure with hinge joint and masticatory muscles attached to the body of mandible, attention must be paid to avoid displacement during treatment. Displacement during fracture reduction leads to malocclusion. Many TMJs function with complete comfort and apparent normalcy in adapted centric posture, even though they have undergone deformation caused by trauma. This clinical report describes the patient with post traumatic malocclusion and its prosthetic treatment. His fractured mandible was openly reduced in changed position, as a result his occlusion has been changed. He was treated by prosthetic method in so-called adapted centric posture.

• Journal of Chest Surgery
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• v.19 no.4
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• pp.584-594
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• 1986

Despite the multivariate improvements in tissue treatment, material, and design of prosthetic heart valves in recent years, numerous complications that may lead to valve dysfunction remain a constant threat after valve replacement. Most common indications for prosthetic valve failure are primary valve failure, infective endocarditis, paravalvular leakage, and thromboembolism. From 1977 to 1986, 15 patients underwent reoperation for prosthetic valve failure in 278 cases of valve surgery. The etiology of prosthetic valve failure were primary valve failure in 12 patients [80 %], infective endocarditis in 2 patients [13.3 %], and a paravalvular leakage [6.7 %]. The average durations of implantation were 45.5 months; 53.9 months in primary valve failure, 16 months in infective endocarditis, and 4 months in paravalvular leakage. The rate of valve failure was high under age of 30 [11/15]. Calcifications and collagen disruption of prosthesis were main cause of primary valve failure in macro- & micropathology. Prosthesis used in reoperation were 5 tissue valves and 10 mechanical valves. Operative mortality were 13.3 % [2/15], due to intractable endocarditis and ventricular arrhythmia.

• Journal of dental hygiene science
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• v.10 no.5
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• pp.315-321
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• 2010

The aim of this study was to assess change of the oral health related quality of life after fixed prosthetic treatment using implant therapy. One hundreds and twenty patients from 3 dental clinics in Seoul, Incheon and Daegu were recruited after verbal consent. The oral health related quality of life by OHIP-14, the treatment satisfaction by North Texas Periodontal Associates and the oral health interest w+ere measured before fixed prosthetic treatment using implant and one months after prosthetics. Total OHIP-14 changed significantly between pre- and post- treatment (p<0.001). Although gender(p=0.01), economic status (p=0.04) and education status (p=0.01) affect to OHIP-14 significantly before treatment, these factors didn't have effects on OHIP-14 after treatment. The subjective satisfaction in masticatory function, social function and psychological function increased significantly after treatment (p<0.001). Besides, the patients' oral health interests increased significantly after treatment (p<0.001). The fixed prosthetic treatment using implant therapy can improve the oral health related quality of life, subjective satisfaction of mastication, social function and psychological function, and oral health interest of dental patients.

• The Journal of Korea Assosiation for Disability and Oral Health
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• v.10 no.2
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• pp.78-83
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• 2014

The objective of this study was to confirm the validity of classification of dental disability by measuring the dental treatment time required for disabled patients and identify the disability type that requires more of chair time. As a result of measuring a total of 123 patients who were admitted to the Seoul dental hospital for the disabled on Oct. 2014, I was able to make the following conclusions: 1. For dental counseling and check-up, the chair time did not show significant differences between the different types of disability. 2. For periodontal treatment, restorative treatment, root canal treatment, and surgical treatment, the difference of the chair time for dentally disabled patients was significantly longer than that of non-dentally disabled patients. 3. The difference in the total chair time for prosthetic treatment was statistically insignificant. However, each of the prosthetic treatment steps did show statistically significant differences.

• The Journal of the Korean dental association
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• v.58 no.9
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• pp.583-589
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• 2020

If the implant is planted in the wrong position or direction, it is disadvantageous for stress distribution, and it is easy to cause complications such as screw loosening, abutment fracture, and implant fracture. If the position or orientation of the implant is not good, efforts should be made to minimize the problem through proper implant prosthetic treatment. In this article, the prosthetic method for facilitating future maintenance in cases with poor implant placement or orientation will be presented.

• Physical Therapy Korea
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• v.5 no.2
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• pp.91-97
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• 1998

The purpose of this study is to introduce prosthetic discipline and ambulation training after hemipelvectomy due to osteosarcoma. Over the past years, when the malignant bone tumors occurs in the extremities amputation is not enough to prevent a part recurrence and distal transformation resulting in fatal prognosis. On the other hand, these procedures could bring about a difficulty in rehabilitation in curing patient who have had hemipelvectomy. However the recent development of chemotherapy and diagnostic facility have permitted the orthopedic surgeons to many try amputations for the treatment of the malignant bone tumors. Unfortunately, there has not been many researches on hemipelvectomy. Since there is no studies found on hemipelvectomy either. Therefore, we introduce successful procedures for rehabilitation through the ambulation training for patients who have had amputation. One of our patients, who is an eighteen years old male, has had hemipelvectomy on the eighteenth of June in 1997 after his anticancer treatment over 12 times. He has had physical therapy of prosthetic ambulation training at the department of rehabilitation medicine Yonsei University Medical Center from the fifteenth of October to December '2nd in 1997.

• 대한치과교정학회:학술대회논문집
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• 2005.11a
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• pp.149.2-149.2
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• 2005

• Journal of Periodontal and Implant Science
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• v.38 no.sup2
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• pp.405-412
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• 2008

Purpose: Pathologic tooth migration (PTM) commonly occurs in the anterior region and is associated with periodontal disease. The treatment of PTM of anterior teeth can be complex and time consuming, and a multidisciplinary approach is often required. Materials and Methods: The patient was a 38-year-old woman with a chief complaint of saving and realigning her elongated maxillary left central incisor. This paper describes the successful combined periodontal regenerative (guided tissue regeneration) and prosthetic treatment and a 2-year follow-up of maxillary central incisor with pathologic tooth migration, deep intrabony defect, and poor prognosis. Results: The right maxillary central incisor was restored by laminate veneer and the left by all-ceramic crown. The patient had no pain and discomfort and was satisfied with the outcomes of her treatment for 2 years. She has maintained her recall program at the Department of Periodontology at 3 months interval. Conclusion: The key step in the successful treatment of PTM in anterior region is to obtain a high level of cooperation from the patient. Maintenance of the treatment result of PTM is dependent on the continuous preservation of periodontal health.