• 대한치과보철학회지
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• 제42권1호
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• pp.73-82
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• 2004

Statment of problem : Little in known about the importance of selection of various double crowns as retainer in determining the outcome of treatment with double crown retained removable partial denture. Purpose : To obtain information about the effects and the results of this treatment modality. Material and methods : This study describes 61 double crown retained removable partial dentures worn by 51 patients from Samsung Medical Center, Seoul a time ranging between 6 and 48 months and evaluate occlusal contacts on the denture teeth, denture movement, incidence of denture relining, denture retention, fracture of dentures and abutments, hygiene, residual ridge inflammatory changes, number of lost abutment,. interruption of denture use. Results : One tenth of all the restorations were relined. Restorations in 21 arches fractured repeatedly for various reasons . There was no apparent interrelationship between fractures and the five groups. Conclusion : Good prognoses of removable partial dentures were shown in all groups(Kennedy Classes I, II, III, combination and few remaining abutment).

• 대한치과보철학회지
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• 제54권4호
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• pp.364-369
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• 2016

목적: 총의치를 사용하고 있는 무치악 환자에서 의치 사용에 대한 환자의 평가와 술자간의 평가를 비교하고자 하였다. 대상 및 방법: 의치를 사용한지 최소 1년 이상 경과된 총의치 장착자 중 43명의 환자가 정기검진에 응하였다. 환자에 관한 여러 정보를 얻기 위해 다양한 문헌에서 얻은 자료를 토대로 설문지를 개발하고 술자의 객관적인 평가간 일치도를 분석하였다. 술자의 평가 사항으로는 유지, 안정, 교합과 같은 기능적 항목과 의치의 상태를 포함한다. Friedman test와 Cohen's Kappa값을 이용하여 통계학적인 분석을 시행하였다. 결과: 의치 장착자의 평가와 술자의 평가 간에는 약하거나 약간의 차이가 있다. 상악 의치보다는 하악의치에서 차이가 더 크게 나타났으며 심미와 저작은 중등도의 차이가 있었다. 결론: 의치에 대한 환자의 주관적, 술자의 객관적인 평가는 일치하지 않으나 큰 차이를 보이지 않는다.

• 구강회복응용과학지
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• 제23권2호
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• pp.139-144
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• 2007

Prosthodontic treatment planning for various edentulous arches is not an easy issue for dentists. Especially, in case of removable partial denture, we must have a knowledge of overall treatment procedures, and a careful approach is needed. Recently, interest of dental implant and case reports are increasing, the decrease of the removable partial denture is true, but dental implantation takes longer treatment period and it is more expensive. Also, there are still some limitations like lack of available alveolar bone, patient's general condition, and chronic periodontitis. Therefore, sometimes implantation is impossible. Finally, implantation cannot be adapted to every single patient. Currently, the clasp type removable partial dentures are used routinely, giving patients many unesthetic and functional difficulties. With better laboratory technique, removable partial denture with attachment and removable partial denture in rigid type increase patient's happiness level much more than predicted. The case presented in this article, clinically demonstrate the efficiency of using a telescopic system to improve esthetic and functional recovery for patients who lose multiple teeth.

• 대한치과보철학회지
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• 제57권1호
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• pp.42-48
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• 2019

하악 편측에 소수의 잔존치만 있는 증례에서 통상적인 국소의치로 수복하는 경우에 충분한 유지 및 저항을 얻기 어렵고, 무치악 치조제의 흡수에 따른 의치의 안정성 저하로 인해 잔존지대치에 유해한 힘이 가해질 것으로 예상된다. 이러한 경우에 다수의 임플란트를 이용한 고정성 보철로 수복하게 되면 여러 가지 장점이 있을 수 있으나, 해부학적, 경제적 요인에 의해 치료 방법으로 선택이 제한될 수 있다. 이에, 적은 수의 임플란트를 전략적 위치에 식립하여 임플란트 보조 국소의치(Implant-assisted removable partial denture, IARPD)의 제작을 대안으로 고려해 볼 수 있다. 본 증례보고에서는 전통적인 가철성 국소의치만으로는 적절한 지지, 유지, 안정이 어려운 두 임상증례에서 소수의 임플란트를 전략적 위치에 식립하고 로케이터(Locator) 부착장치를 적용하여 3년간 경과관찰을 통해 좋은 임상 결과를 확인하였기에 이를 보고하고자 한다.

• 대한치과보철학회지
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• 제46권6호
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• pp.591-601
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• 2008

STATEMENT OF PROBLEM: The improvement in oral function and comfort from the dental implant appears to depend on the particular type of implant support used with the denture. The number and positioning of implants have an influence on the force transfer and subsequent stress distribution around implants. Nevertheless, a quantitative comparison has not been made between the types of implant prosthesis used with different materials compared to conventional complete denture. PURPOSE: The objective of this study is to assess the masticatory performance, bite force and impact of two different type of implant supported prostheses on oral health-related quality of life compared to conventional complete denture with GOHAI, validated oral-specific health status measures, the sieving method, and the Prescale Dental System. MATERIAL AND METHODS: From the years 1999 to 2006, a total of 30 completely edentulous patients in a single arch were selected from the Yonsei University Dental Hospital, Department of Prosthodontics and Implant Clinic in Seoul, S. Korea. Patients were divided into 3 groups of 10 each. Group HR was restored with fixed-detachable hybrid prostheses with resin teeth. Group FP had fixed dentures with porcelain teeth while Group CD had a complete denture. The masticatory performance was compared between 3 groups. RESULTS: The results showed a significant improvement in oral health-related quality of life with dental implants compared to a conventional denture in GOHAI comparison. Overall, implant prostheses showed a higher masticatory performance ($S_{50}$) and maximum bite force compared with conventional dentures (P < .05) but no differences between different implant supported prostheses (P > .05). CONCLUSION: Within the limitation of this study, the numbers of implant and material of implant prostheses does not appear to impact patient satisfaction, masticatory performance or bite force.

• 대한치과보철학회지
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• 제37권4호
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• pp.494-505
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• 1999

In spite of the progress in techniques and materials of the prosthodontic rehabilitation of patients with complete edentulous arches, prosthodontists still face patients' complaints about dissatisfaction and discomfort from their dentures. In the past several decades, prosthodontists tried to find the factors that influence the patient's satisfaction with dentures. However the results are contraversial especially with the psychological factor. In this study using 'patient denture satisfaction questionnaire' and Hopkins Symptom Checklist, we tried to find the correlation between the patient's denture satisfaction and the patient's psychological aspects. 23 complete edentulous patients who have visited the Department of Prosthodontics, Yonsei University Dental Hospital from September 1998 to June 1999 for complete denture treatment were asked to complete the questionnaires 4 to 6 weeks after the upper and lower complete delivery. After the measurement of validity of the questionnaires, correlations between the patient's general satisfaction with their new upper and lower complete dentures and the other satisfaction questions including the satisfactions with esthetics, retention, mastication, speech, comfort and other people's opinion and between the patient's general satisfaction with their new upper and lower complete dentures and the 5 symptoms of Hopkins Symptoms Checklist including somatic, obsessive-compulsive, interpersonal sensitivity, depression and anxiety were analyzed. Among the several satisfaction questionnaire items, comfort with the lower denture showed highest relation to the patient's general satisfaction with dentures. However, only the anxiety scale of Hopkins Symptoms Checklist among the other symptom scales was related to the patient's general satisfaction with dentures. The two questionaires used in this study turned out to be valid means of analyzing patient's denture satisfaction and psychological status before and after the complete denture treatment.

• 구강회복응용과학지
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• 제29권4호
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• pp.426-433
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• 2013

완전 무치악 환자를 총의치로 수복할 때 특히 하악의 경우 유지, 지지 면적이 상악보다 좁아 의치의 탈락, 불량한 지지 및 안정성, 통증을 유발하여 의치의 사용이 불편할 수 있다. 이런 환자에서 임플란트를 이용한 보철수복은 심미성, 안정성, 저작력을 향상시킬 수 있다. 반면 상악 완전무치악은 구개를 이용할 수 있으므로 총의치로 수복하였을 때 많은 환자들이 잘 적응하여 사용하고 있다. 이에 상하악 완전 무치악 환자의 치료 옵션으로 하악은 임플란트로 지지를 받는 고정성 보철물 또는 임플란트 오버덴쳐로 수복하고 상악은 연조직에 의해 지지를 받는 전통적인 총의치로 수복하는 전악 보철수복이 제시되었다. 이 때 상악 총의치에 대합하는 하악 임플란트 고정성 보철이 상악 잔존치조제의 골흡수에 어떠한 영향을 미치는지에 대한 문헌고찰과 함께 증례를 보고하고자 한다.

• 대한소아치과학회지
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• 제36권1호
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• pp.150-156
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• 2009

부분무치증 환자에게 사용되어온 기존의 가철성 장치는 wire의 노출로 인한 비심미성과 낮은 유지력 등의 문제점을 가지고 있다. 그 대안으로 제시된 탄성의치는 치은의 자연적인 색조를 투과시키는 얇고 강한 레진유지부로 인해 심미성이 크게 향상 되었으며 전체적인 의치상의 크기를 줄여주어 환자의 감각을 더욱 향상시킨다. 탄성의치의 유연성은 파절가능성을 감소시키며, 내재적 응력의 해소 작용으로 지대치와 잔존 골조직에 전달되는 저작력을 분산시킬 수 있다. 본 증례에서는 부분무치증을 보이는 10세 여아와 6세 남아에서 기존의 가철성 장치를 대체한 탄성의치를 사용하여 양호한 치료결과를 얻었다. 알지네이트로 상하악 인상을 채득하고 교합관계를 인기한 뒤 기공소에 제작을 의뢰하였다. 다음 내원 시 탄성의치를 $90^{\circ}C$의 물에 1분정도 담가두었다가 꺼내어 서서히 식힌 뒤 구강 내에 시적하였다. 레진유지부의 적합성을 확인하고 $Fit-Checker^{(R)}$를 이용해 조직이 심하게 눌리는 곳을 삭제하고 장치를 장착하였다. 두 명의 환아 모두 탄성의치의 더 나은 유지력과 향상 된 심미성에 만족하였다. 탄성의치는 부분무치증 환자에서 기존의 가철성 장치를 대체할 수 있는 좋은 재료로 여겨진다.

• 대한치과보철학회지
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• 제37권5호
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• pp.698-713
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• 1999

Adherence of Candida albicans(C. albicans) to the surface of a denture is believed to be an initial and essential step in the formation of denture-induced stematitis. Previous studies have provided enormous infomation on the relationship between composition of palatine gland/parotid saliva and upper denture stomatitis. Relatively little information is available on the correlation between lower denture stomatitis and sublingual-submandibular ( SLSM ) saliva. The plaque samples were collected from the two sites($100mm^2$) on the inner surface of lower partial denture corresponding to the stematitis and healthy region of the lower partial dentures of 12 denture stomatitis patients and 6 nor-mal persons who wore lower partial dentures. The samples were plated to isolate C. albicans on a selective Saboraud's dextrose agar plate and the isolates were identified by germ tube test and gram staining. The subjects were divided into group I (stomatitis with C. albican), group II (lesion without C. albicans), group III (no lesion but C. albicans), and group IV (normal and healthy denture wearer). Individual SLSM saliva($20{\mu}g$ of protein) was analyzed by SDS-PAGE (SDS -poly-acrylamide gel electrophoresis) with Coomassie brilliant blue and PAS(Periodic Acid Schinff) stain-ing. The salivary proteins separated in the polyacryamide gels were subjected to immunoblot anaysis using anti-lactoferrin, anti-sIgA, and anti-secretory component of sIgA. In this study using custom made acrylic denture resin beads(5mm in diameter) coated with stimulated individual SLSM saliva, the binding ability of individual C. albicans strains to the beads was observed. Levels of C, albicans adhered to the acrylic resin beads were determined by measuring the optical density of the bound C. albicans to the beads at 580nm. The results showed that a higher number of C. albicans was observed in the lesion site than healthy site. The saliva of group I contained more high molecular weight glycoprotein(mucin, MGI) as compared to group II, III and IV. And lactoferrin and sIgA affected to the binding ability of C. albicans to acylic resin beads. Binding ability of individual C. albicans to the acrylic resin coated with respective individual saliva was found to be greater in group I than the other 3 groups. And when bound cells of C. albicans isolated from individual subject #2 to the saliva coated beads were used binding ability of subject #2 saliva coated beads was founed to be greater than the other sutjects. These results suggested that denture induced stomatitis is related to individual patient's salivary protein composition, especially MG-1. Future studies will be directed toward saliva exam-ination of patients who have general disease and analysis of pellicles formed on prosthesis with respect to oral disease.

• 대한치과보철학회지
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• 제31권1호
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• pp.28-38
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• 1993

For the purpose of evaluating the cleansing efficiency against Candida albicans detected frequently in patients with denture stomatitis, two denture cleansers with or without enzymes were studied under the same conditions. The results were as fellows: 1. Enzyme-contain denture cleanser was showed more Candida albicans lytic ability than non-enzyme-contained denture cleanser. 2. It was observed that Candida albicans lytic activity in further diluted manufacturerers' recommended concentration was decreased. 3. In fungicidal test, the enzyme-contained denture cleanser sterilized Candida albicans, and the non-enzyme-contained denture cleanser did not sterilize Candida albicans. 4. Sterilizing time of Candid albicans was needed for at least 60 minutes in enzyme-contained denture cleanser solution which was diluted with manufacturerers' recommended concentrations., and was needed for more times with further diluted manufacturerers' recommended concentrations. 5. In vitro growth test of Candida albicans on acrylic resin surface, the only enzyme-contained denture cleanser inhibited growth of Candida albicans, and it was observed that inhibiton ability of growth of Candida albicans on arrylic resin surface was decreased in further diluted manufacturerers' recommended concentrations.