• 구강회복응용과학지
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• 제31권3호
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• pp.242-252
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• 2015

무치악 환자에서는 치아가 상실되면서 주위 치조골의 개조와 흡수가 일어나고, 이에 따라 총의치의 유지력 감소, 저작 효율의 저하와 통증으로 인해 의치 사용에 어려움을 겪게 된다. 이를 개선하기 위해 하악에 2 - 4개의 임플란트를 식립하고 어태치먼트에서 유지 또는 지지를 얻는 피개의치가 바람직한 치료 방법으로 고려되고 있다. 본 증례들은 하악 완전 무치악 환자들을 악간 관계, 골흡수 정도, 안모지지 등을 평가하여 하악에 2개의 임플란트 식립을 고려하고, 다양한 종류의 어태치먼트를 이용한 임플란트 피개의치 수복을 계획하여 치료하였다. 주기적인 경과 관찰 결과 심미적, 기능적으로 만족할만한 결과를 얻었기에 이를 보고하는 바이다.

• 구강회복응용과학지
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• 제30권1호
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• pp.53-63
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• 2014

삶의 질의 향상과 사망률의 감소로 노인인구의 수는 증가하고 있다. 무치악 환자의 비율은 감소하였지만 더 많은 수가 노인인구로 전입되어 실질적인 무치악 환자의 수는 증가하고 있다. 무치악 환자에서 총의치는 자연치를 완전히 대신할 수는 없지만 주요한 보철치료로 알려져 있다. 일반적으로 의치의 성공은 환자가 편안하게 저작을 잘 할 수 있는지 여부로 평가된다. 환자가 의치를 받아들이는 일은 복잡하고 환자의 심리적, 신체적 상태, 의치의 질적인 면과 연관이 있다. 이외에도 많은 요인이 환자의 의치 사용에 대한 만족도에 영향을 미치며 이들은 복합적으로 작용한다. 본 고찰에서는 환자의 의치 사용에 대한 만족도에 영향을 미치는 요소와 만족도를 평가하는 방법에 대해 알아보았다.

• 대한치과의사협회지
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• 제52권12호
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• pp.771-782
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• 2014

Introduction: This study researched the clinical application of immediate functional loading technique about implant survival rate in the completely edentulous and suggested our protocol about surgical & prosthetic procedure. Materials and methods: 32 consecutive patients participated in this study. A total of 242 implants were inserted. In test group, 144 implants were inserted in 19 patients with immediate functional loading with occlusal contact. In control group, 98 implants were inserted in 13 patients and conventional loading was done after 4~6 months. Result: In the immediately loaded implants group, overall cumulative survival rate was 98.6%.

• 대한치과보철학회지
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• 제40권1호
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• pp.88-97
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• 2002

The purpose of this study was to evaluate a cases which was treated with magnetic attachments on the patients in edentulous mandible and maxilla. Author made magnetic overdenture for two patients and then clinical examination were used for evaluation of the function and change in retention during 30months. Patients showed difficulty in oral hygiene care at the beginning but they go used to it soon. It was effective in promotion of denture retention and stability and also gave patient emotionally uplifting psychologic state. This study suggest that magnetic attachment was effective for the treatment of patients presenting a few remaining teeth or teeth under severe caries or mobility.

• 대한치과기공학회지
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• 제41권2호
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• pp.149-156
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• 2019

Purpose: Prosthodontics for edentulous patients is a treatment technique using implant, which has impactful results in retention and support effects. Methods: As a retention technique, SCRP (screw and cement retained implant prosthesis) has reported in many studies as a beneficial method for both patients and curers, which can reduce errors in process of making abutment and top implant. Results: Prosthesis manufacturing, as polymerization method of hardened resin teeth with thermoplastic resin, is helpful for patients with aesthetic and financial situations regarding residual ridge and interocclusal relationship, also indicates reliable results in both retention and care. Conclusion: Using SCRP technique, we notably obtained a clinical and aesthetic outcome from five implants in anterior tooth, which are half fixable and detachable implants on screw of implant abutment by the technicians at anytime.

• 대한치과보철학회지
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• 제38권3호
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• pp.360-365
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• 2000

The completely edentulous patient has few treatment options in conventional dentistry. When implants are considered, treatment plans range from a 2-implant overdenture to a completely implant-supported prosthesis. Fixed prosthesis is often the preferred selection of the edentulous patient. fixed full-arch cert amo-metal restorations can be a predictable implant treatment modality for the edentulous patient. Implant-supported fixed prosthesis has several advantages: predictability, fixedness, retrievability, improved function, lower maintenance of prosthesis, long-term published success. Edentulous patients with a severely resorbed mandible often experience problems with their dentures. Treatment concepts involving two to four implants for the support of an overdenture have been proposed. There seems to be no need to insert more than two endosteal implants to support an overdenture, however, long-term prospective studies are needed to support this notion. Using short endosseous implants and an overdenture in the extremely resorbed mandible is a justified treatment option because of the relative simplicity and low morbidity of this treatment strategy. Implant-supported overdenture has several advantages: Cost, retrievability, hygiene access, profile and contour control, increased retention and stability, implant installed in a predicted region(ant. mandible).

• 구강회복응용과학지
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• 제27권1호
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• pp.117-123
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• 2011

총의치 환자의 치료 시 인상 채득 과정은 의치의 지지, 유지, 그리고 안정을 위해 매우 중요하며, 의치의 성공여부를 좌우한다. 총의치 인상 채득을 위한 여러 가지 재료와 방법들이 이용되어 왔으며, 그 중 조직 양화재 (tissue conditioner)를 이용한 동적 인상법 (dynamic impression method)은 보다 생리적이고 기능적인 방법이다. 본 증례들에서는 무치악 환자에서 조직 양화재인 Coe-comfort$^{(R)}$ (GC America, IL, USA)를 이용한 동적 인상법으로 변형된 연조직의 회복과 하께 가장 생리적인 상태로 인상을 채득하여 의치의 제작 및 첨상을 시행하였으며, 만족스런 결과를 얻었다.

• Journal of Periodontal and Implant Science
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• 제49권4호
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• pp.237-247
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• 2019

Purpose: To analyze the maxillary sinus anatomy over edentulous ridges in the bilateral posterior maxillary area in Taiwanese patients using cone-beam computed tomography (CBCT). Methods: In total, 101 anatomical sites from 61 patients, including 32 premolar and 69 molar regions, were analyzed using CBCT. Measurements were made of the width and height of edentulous ridges, the thickness of the lateral wall of the maxillary sinus, and the presence of a sinus septum and the posterior superior alveolar artery (PSAA). A statistical analysis of the measurements was performed, and correlations among the measurements were assessed. Results: The average ridge width was $10.26{\pm}3.16mm$, with a significantly greater ridge width in the second molar region than in the premolar region. The mean residual ridge height was $8.55{\pm}4.09mm$, and ridge height showed an opposite trend from ridge width for the premolar and molar regions. A sinus septum was present at 5.9% of the sites, and the PSAA was observed in 24.5%. The average thickness of the lateral wall of the maxillary sinus was $2.08{\pm}0.94mm$, with no significant difference between the tooth position and lateral wall thickness. Conclusions: This study presents the anatomical features of the maxillary sinus, which should be considered in sinus lift procedures for implant placement, in the Taiwanese population. The use of CBCT is recommended to avoid intraoperative complications.

• Journal of Periodontal and Implant Science
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• 제40권2호
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• pp.56-60
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• 2010

Purpose: The sinus lift procedure requires detailed knowledge of maxillary sinus anatomy and the possible anatomical variations. This study evaluated the location and prevalence of maxillary sinus septa using computed tomography (CT). Methods: This study was based on the analysis of CT images for posterior maxilla which were obtained from patients who visited Chonbuk National University Dental Hospital during the period of June 2007 to December 2008. With the exclusion of cases presenting any pathological changes, 236 maxillary sinuses in 204 patients were retrospectively analyzed. The average age of the patients was 50.9. The cases were divided into two groups, an atrophy/edentulous segment and a non-atrophy/dentate segment, and maxillary sinus septa of less than 2.5 mm were not taken in-to consideration. The location of septa was also divided for analysis into 3 regions: the anterior (1st and 2nd premolar), middle (1st and 2nd molar) and posterior (behind 2ndmolar) regions. Results: In 54 (20.9%) of the 204 patients there were pathologic findings, and those patients were excluded from the analysis. Sinus septa were present in 58 (24.6%) of the 236 maxillary sinuses and in 55 (27%) of the 204 total patients. In the atrophy/ edentulous ridge group (148 maxillary sinuses), 41 cases (27.7%) were found, and 17 cases (19.3%) were found in the non-atrophy/ dentulous ridge group (88 maxillary sinuses). In terms of location, septa were found in 18 cases (27.3%) in the anterior, in 33 cases (50%) in the middle and in 15 cases (22.7%) in the posterior regions. Conclusions: In the posterior maxilla, regardless of type of ridge (atrophy/edentulous or non-atrophy/dentate), the anatomical variation of sinus septa is diverse in its prevalence and location. Thus, accurate information on the maxillary sinus of thepatient is essential and should be clearly understood by the surgeon to prevent possible complications during sinus lifting.

• 대한치과의사협회지
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• 제40권1호통권392호
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• pp.75-84
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• 2002