• 한국치위생학회지
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• 제4권2호
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• pp.237-253
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• 2004

This study was to find a patient's motive for receiving implant treatment by age and gender using a self-reporting questionnaire survey with adults(men & women) in Woolsan. The result was as follows: 1. As a result of questionnaire survey with 155 patients in total(86 men, 69 women), 24 of 86 men(27.9%) valued the natural mastication feature of dental implant most, that is as similar as natural teeth, while 18 of 69 women(26.1%) had the most priority over the longer life of implant than common dental prostheses. By age, those in their 20s and 30s had a preference to implant treatment because it does not need to pulling out teeth for prostheses, while those in their 40s and over had a priority to the natural mastication feature of implant that is similar as much as natural teeth. By dental treatment, all of respondents said that the natural mastication feature is the most important in getting dental implant. It was founded that whether one can taste food as it is or not is less important, regardless of age or gender. 2. The greatest obstacle to implant surgery was expensive medical fees, 88 of 155 respondents(56.8%), with a fear of surgery itself being the least obstacle. 3. 90.2% of the total respondents said that they will want to receive dental implant treatment if their economy allow.

• 대한치과보철학회지
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• 제39권1호
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• pp.25-36
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• 2001

Among the numerous factors contributing to implant failure, the most common are infection, failure of proper healing and overload. These factors may occur combined. Implant fractures are one of the complications resulting from overload. Implant fracture is not a common feature, but once it occurs it causes very unpleasant circumstances for the patient as well as for the practitioner. Only few studies have been reported regarding this subject. Thus, little is known about its solutions. It is important that analyzing reasons for implant fracture and finding appropriate solutions. Factors leading to implant fracture are design, material defects, nonpassive fit of prosthetic framework and biomechanical overload. Previous studies have reported that implant fractures ares associated with marginal bone loss and occur mostly in the posterior regions and that most patients showing parafunctional habits also have implant fracture. Abutment and gold screw loosening or fracture were also observed in some of the cases previous to implant fracture. Similar observations were seen in our hospital as well. The following cases will present implant fracture cases which have been successfully treated regarding function and biomechanics. This was achieved by means of using increased number of futures, increasing fixture diameter and establishing proper occlusion.

• 대한치과보철학회지
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• 제44권2호
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• pp.243-249
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• 2006

Statement of problem: It is important to have a correct presurgical treatment plan before any implant surgery. It must contain substantial information about the patient concerned. However, the standard classification only notifies the dentist about various structural, pathological and physiological dimensions Due to diverse structure of the jaw bone, current standard classification does not tell spatial dimensions of the available bone for implant insertion sites. Purpose of study: The purpose of this study is to report the establishment of the systematic implant treatment plan and its clinical treatment using $Implan^(R)$ program which is based on ASCIi-classification that is available for future diagnosis and scale of treatment and for systematic implant insertion. Results: By assisting the systemic measurement of the available alveolus dimension during implant surgery, it was easy to set initial implant treatment plan. Conclusion: Using $Implan^(R)$ program which is based on ASCIi-classification system that allows the establishment of systemic implant treatment plan and successful clinical performance, it was possible to establish the founding or initial implant treatment plan , the acquisition of information, and the systematization of documentation.

• 대한치과보철학회지
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• 제52권4호
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• pp.324-330
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• 2014

임플란트와 자연치를 연결하여 보철물을 제작할 경우, 자연치에 함입현상이 일어날수 있음은 여러 보고로 알려져 있다. 이를 설명하는 메커니즘은 여러가지가 있으며, 이에 임플란트와 자연치를 연결 하는 보철물 형태는 권장되지 않는다. 본 증례는 임플란트와 인접 하지만, 연결되어 있지는 않은 자연치가 인접면 접촉과 연관되어 함입이 일어난 증례이다. 68세 여성이 상악 좌측 제2소구치 및 제2대구치 발치후, 임플란트 수술 및 보철수복을 받았으며, 임플란트 사이의 제1대구치는 크라운 치료를 받았다. 2.5년 후, 제2대구치 근심면의 접촉이 느슨해져 상기 보철물의 근심면 합착을 시행하였다. 그로부터 7개월후, 제1대구치의 약 2 mm 함입이 발생하였으며, 치주문제로 인한 통증도 발생하였다. 제1대구치의 크라운을 제거하고 다시 정출이 일어났고, 치주 통증도 사라졌다. 이에 본 증례를 분석, 보고하는 바이다.

• 대한치과보철학회지
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• 제56권4호
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• pp.368-374
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• 2018

본 증례의 환자는 약 10여년 전 2개의 임플란트를 이용하여 Gold Hader bar 하악 임플란트 피개 의치로 수복하였고, 3년 6개월의 사용으로 인한 bar의 심한 마모로 유지력을 상실하였다. 이를 Locator 부착장치를 이용하여 하악 피개 의치를 수리하였으나, Locator 사용 6년 6개월 후 male 부위가 완전히 닳은 상태로 내원하게 되었다. 다음으로는 하이브리드 이중관(Hybrid telescopic double crown with friction pin)을 사용하여 임플란트 피개 의치를 새로 제작하였고, 이를 2년동안 관찰한 결과 우수한 예후를 보여주고 있다. 여기에서 한 환자에서 2가지(Gold Hader bar, Locator)방법으로 수복한 임플란트 피개 의치에서 각 부착장치의 실패원인에 대해서 알아보고, 이중관 피개 의치의 장단점과 성공을 위한 조건에 대해서 보고하고자 한다.

• Archives of Plastic Surgery
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• 제37권3호
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• pp.256-258
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• 2010

Purpose: Predicting the change in breast size for a specific patient's need is a challenging problem in breast augmentation. We intended to investigate the postaugmentation degree of breast size according to the size of cohesive silicone gel implant. Methods: To predict post-augmentation breast size, we measured 100 patients' pre-and postoperative 3 month's bust circumference. All patients were performed by total subfascial breast augmentation with moderate profile cohesive silicone gel implant through areolar omega (transareolar-perinipple) incision. Results: According to this study, each additional one pair of 100 mL in implant size yielded an approximate 1.5 cm increase in bust circumference (p=0.006). Conclusion: From this result, we conclude that each additional one pair of 100 mL in implant volume yielded about 1.5 cm increase in bust circumference. Although this result may not be applied to every patient, we believe that it yields a practical chart that can help to predict the amount of increase in breast size with the use of cohesive silicone gel implant of a specific size preoperatively.

• 대한치과의사협회지
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• 제53권9호
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• pp.628-643
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• 2015

Purpose: The aim of this retrospective study was to compare marginal bone loss and survival rates of double short implants(multiple implant) which had been installed and restored in severely atrophic maxillary molar site without a grafting procedure. Material and Method: The subjects were patients (90 patients, 180 implants) who had been installed double short implants in severely atrophic maxillary single molar site without bone augmentation procedure from 2006 to 2014 in dental clinic in Chuncheon city. Following data were collected from dental records and radiographic panoramic views: patient's age, gender, smoking status, implant site, timing of implant installation, residual ridge height. The correlation between those factors and survival rate and marginal bone loss were analyzed. Statistical analysis was performed using Chi-square test, Student's t- test and ANOVA. Result: Eleven implants in 6 patients failed and the cumulative survival rate was 93.9%. No significant differences were found in relation to the following factors: patient's age, gender, implant site, timing of implant installation (P> .05). There were significant differences in smoking status and residual ridge height(P< .05). The average follow-up time was $45{\pm}14.7months$. The mean marginal bone loss of survived 169 implants was $0.08{\pm}0.59mm$. Conclusion: Despite the short term outcomes, the survival rate of double short implants was comparable to normal length implants. This study demonstrated that placement of double short implants without the use of bone grafting procedure for severely atrophic posterior maxilla is a simple and predictable treatment procedure.

• 대한치과보철학회지
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• 제60권1호
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• pp.29-36
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• 2022

상악 무치악 환자의 구강 회복을 계획할 때 치료 방법으로 임플란트를 이용한 고정성 보철 수복과 총의치 수복 또는 임플란트를 이용한 오버덴쳐 등을 고려할 수 있다. 총의치 수복의 경우 추가적인 수술이 필요 없고 상대적으로 경제적이며 임플란트 지지 고정성 보철 수복의 경우 일반적으로 총의치 수복에 비해 기능적인 부분이 우수하지만 임상적으로 임플란트 식립이 어려운 경우가 존재한다. 최근에는 환자의 요구 및 잔존 치조골의 상태 등을 고려하여 부분적으로 임플란트를 식립한 후 임플란트 지지 서베이드 크라운을 이용한 가철성 국소의치 수복도 시도되고 있다. 본 증례는 상악 전방부의 임플란트 지지 서베이드 크라운을 이용한 가철성 국소의치 수복을 시행한 증례로 심미 및 기능적으로 만족할 만한 결과를 보여 보고하는 바이다.

• 대한치과보철학회지
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• 제60권1호
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• pp.127-134
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• 2022

임플란트 실패의 경우에서 과도한 하중 및 염증이 실패율을 높이는 대표적인 원인이 된다. 특히, 임플란트 주변의 불량한 구강위생은 임플란트 실패의 가장 흔한 원인 중 하나이다. 임플란트 상부보철물의 실패가 발생할 경우, 임상의는 남은 고정체를 사용하여 재진단하고 평가하여 치료계획을 수립해야 한다. 임플란트를 추가 식립하여 새로운 보철물을 만들거나 남은 임플란트를 이용하여 임플란트 융합 가철성 의치 및 임플란트 피개의치로 치료를 시행할 수 있다. 본 증례의 환자는 상악 무치악부를 고정성 임플란트 보철물로 수복한 후 구강위생관리가 불가하여 임플란트 보철물 실패한 환자에서 잔존 임플란트의 지대주 및 부가적인 유지 장치를 장착한 milled bar를 이용하여 가철성 임플란트 피개의치로 전환하여 치료하였고 심미성과 저작기능, 지속적인 유지관리 면에서 장기적으로 만족할 만한 결과를 얻었기에 보고하는 바이다.

• 대한치과의사협회지
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• 제50권3호
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• pp.118-125
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• 2012

CAD/CAM systems (computer-aided design / computer-aided manufacturing) used for decades in restorative dentistry have its application to implant dentistry. This study aimed to overview CAD/CAM systems used implant dentistry, especially emphasizing custom implant abutments manufacturing. CAD/CAM custom abutments present the advantages of being specific to each patient and providing a better fit than the stock and cast custom abutments. This cutting edge technology of virtual-designed and computer-milled implant abutments will likely replace traditional implant restorative protocols and become the standard for implant dentistry in the foreseeable future.