• Restorative Dentistry and Endodontics
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• 제39권3호
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• pp.220-225
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• 2014

A fiber-reinforced composite (FRC) fixed prosthesis is an innovative alternative to a traditional metal restoration, as it is a conservative treatment method. This case report demonstrates a detailed procedure for restoring a missing anterior tooth with an FRC. A 44-year-old woman visited our department with an avulsed tooth that had fallen out on the previous day and was completely dry. This tooth was replanted, but it failed after one year. A semi-direct technique was used to fabricate a FRC fixed partial prosthesis for its replacement. The FRC framework and the pontic were fabricated using a duplicated cast model and nanofilled composite resin. Later on, interproximal contact, tooth shape, and shade were adjusted at chairside. This technique not only enables the clinician to replace a missing tooth immediately after extraction for minimizing esthetic problems, but it also decreases both tooth reduction and cost.

• Restorative Dentistry and Endodontics
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• 제39권3호
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• pp.230-234
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• 2014

This study describes the treatment of an immature permanent tooth with periapical lesion which was treated with regenerative approach using platelet rich plasma (PRP). The root canal of immature human permanent tooth with periapical lesion was gently debrided of necrotic tissue and disinfected with 2.5% NaOCl, and then medicated with triple antibiotic paste comprised of ciprofloxacin, metronidazole, and tetracycline. When the tooth was asymptomatic, PRP and mineral trioxide aggregate (MTA) were placed into the root canal. Six months after PRP treatment, radiographical examination revealed resolution of the radiolucency and progressive thickening of the root wall and apical closure. Our findings suggest that PRP can be used for the treatment of immature permanent teeth with periapical lesion, as part of a regenerative endodontic treatment procedure.

• 구강회복응용과학지
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• 제17권2호
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• pp.113-123
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• 2001

The success of complete denture prosthesis is to satisfy three basic requirements for the edentulous patient : maximum comfort, efficiency, and esthetic appearance. This can be achieved only if the dentures are both stable and retentive. When the residual alveolar ridge has resorbed significantly, stability and retention are more dependent on the correct position of the teeth and external surfaces of the denture. The stability and retention of the denture can be improved by locating the denture in the neutral zone and reproducing exact mandibular border movement for balanced occlusion. The neutral zone philosophy is based upon the concept that there exists a specific area where the musculature function will not unseat the denture in the mouth. In here, forces generated by the tongue are neutralized by the forces generated by the lips and cheeks. One of the simplest methods for recording border movements in three dimensions is to make stereographic record of condylar movement. Stereographs are made in the mouth during mandibular movement with intraoral clutches and central bearing point, and used in dictating the condylar movement on the articulator later by generating the condylar paths in doughy acrylic resin. Its procedure is simpler and more convenient than that of Pantograph. In this clinical report, we introduce the concept of neutral zone and stereograph in complete denture fabrication.

• 대한소아치과학회지
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• 제25권3호
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• pp.499-505
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• 1998

Idiopathic gingival hyperplasia is a rare condition of undetermined etiology. The enlargement is usually associated with the emergence of the teeth into the oral cavity and may regress after extraction. The enlarged gingiva may be primarily attributed to hyperplasia of the subepithelial layer that is relatively avascular and consists of densely arranged collagen bundles and numerous fibroblasts. The recommended time for treatment is after completion of eruption of permanent teeth. But the most important thing is the patient's psychological and esthetic needs. Lately, Schluger has proposed modified gingivectomy procedure with horizontal, internal beveled incision for thinning of the flap resulting in less pain and bleeding after treatment, minimal opportunity of infection. The purpose of this report is to document a case of 8-year-old girl who had registered in Dept. of Pediatric Dentistry of Seoul National University dental hospital for treatment of her gingival hyperplasia and delayed tooth eruption

• 대한치과의사협회지
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• 제16권8호통권111호
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• pp.619-624
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• 1978

The use of mouth-rinses containing sodium fluoride after tooth brushing has been proposed as a potentially useful measure for the prevention of dental caries in the practice of public health. About 700 middle school girls rinsed their mouths in the school once a week with sodium fluoride sodution after tooth-brushing. Tooth brushing was practiced everyday after meals and the rinses were carried out under the supervision of the teachers. The procedure consisted of gargling 10cc of fluoride solution for one minute and immediately followed by a second rinse with tap water. The rinsing was started in May 1976 and continued for one year. The results were as follows: 1) The inhibition of the 'D' Person rate was 76.04%, 'M' person rate was 80.79%, 'F' person rate was 4.06% and, 'D.M.F.' person rate was 76.86%. 2) the reduction of the 'D.T.' Index was 81.94%, 'M.T.' Index was 85.71%, 'F.T.' Index was 7.69% and, 'D.M.F.T.' Index was 76.83%. 3) Mouth rinsing with 0.3% NaF solution and tooth brushing are of value in the mass control of dental caries.

• Restorative Dentistry and Endodontics
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• 제48권4호
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• pp.32.1-32.8
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• 2023

Ingestions and aspirations of foreign bodies are rare, but do occasionally occur during dental treatment. Although reports exist, few include photos demonstrating the extensive surgical intervention that may be necessary to manage such events. Perhaps this lack of visualization, and associated lack of awareness, is one of the reasons some clinicians still provide nonsurgical root canal therapy (NSRCT) without a rubber dam. This case report outlines the medical treatment of a 30-year-old male who initially presented to a general dentist's office (not associated with the authors) for NSRCT of their mandibular right first molar. A rubber dam was not used for this procedure, during which the accidental ingestion of an endodontic K-file occurred. The patient was subsequently hospitalized for evaluation and treatment, consisting of numerous imaging studies, endoscopic evaluation, and surgical removal of the file from his small intestine. The ingestion of foreign bodies, and the associated complications, can be reduced through the routine use of a rubber dam, which is considered the standard of care for NSRCT. This case graphically illustrates the potential consequences associated with deviating from the standard of care and should remind clinicians that a rubber dam is necessary for all cases of NSRCT.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제50권3호
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• pp.170-174
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• 2024

Adenomatoid odontogenic tumor (AOT) is a rare, asymptomatic, slow-growing benign tumor that can be divided into three variants: follicular, extrafollicular, and peripheral. By treating AOT using an enucleation and curettage approach, recurrence can be avoided. We report a case of a 24-year-old female who presented with a lump in the right mandibular premolar area along with diastema between displaced teeth #43 and #44 and was diagnosed with extrafollicular AOT. The patient was managed with enucleation-curettage surgery without additional bone graft procedure along with routine follow-up. A successful outcome without recurrence was achieved, and diastema closure with repositioning of the displaced teeth did not require orthodontic treatment. AOT should be managed via enucleation and curettage to obtain successful outcomes without recurrence. Spontaneous bone regeneration following enucleation can be achieved without guided bone regeneration. Also, diastema closure and repositioning of displaced teeth can occur without orthodontic interventions through physiologic drift.

• Journal of Korean Dental Science
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• 제17권1호
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• pp.45-52
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• 2024

Purpose: To investigate the 5-year outcome of dental implants placed in a grafted maxillary sinus using recombinant human bone morphogenetic protein-2 (rhBMP-2). Materials and Methods: We retrospectively analyzed 27 implants after maxillary sinus floor augmentation (MSFA) using rhBMP-2 in 16 patients between January 2016 and March 2017. The study evaluated two outcome variables: (1) 5-year cumulative survival and success rate of the implant after functional loading and (2) marginal bone loss (MBL) for implant failure. Results: The average residual bone height was 4.78±1.53 mm. The healing period before loading was 8.35±2.34 months. The crown-to-implant ratio was 1.31±0.26. The 5-year cumulative survival and success rate after functional loading were 100% and 96.3%, respectively. The 5-year average MLB was 0.89±0.82 mm. Conclusion: Placing dental implants with MSFA using rhBMP-2 is a reliable procedure with favorable long-term survival and success rates.

• 대한소아치과학회지
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• 제36권2호
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• pp.264-269
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• 2009

전신마취하에서의 치과치료는 자발적인 협조가 불가능하거나 전신적인 문제가 있는 경우, 다수의 치료를 한 번에 하고자 하는 경우 등에 행해진다. 이 연구는 서울대학교치과병원 장애인진료실에서 외래 전신마취하에 행해진 환자와 치과치료를 분석함으로써 보다 나은 장애인 진료 시스템을 위한 방안 제시에 도움이 되고자 하였다. 2002년 6월 11일부터 2006년 12월 31일까지 장애인진료실에서 치료 받은 432명의 환자들을 대상으로 조사한 결과 15세 이하의 환자가 50.46%로, 소아 및 청소년 환자가 높은 비율을 차지하고 있었다. 진료과는 보존과, 소아치과, 구강외과, 치주과, 보철과 순으로 나타났으며 치료내용을 보면 보존치료와 발치가 주를 이루고 있었다. 또 2회 이상 전신마취를 시행한 환자가 14.1%나 되었다. 본 연구는 장애인 환자를 위한 보다 포괄적인 치과 치료 및 진료과들 간의 긴밀한 협진 체계를 구축하고 필요한 인력과 설비를 보충함으로써 장애인 환자들에게 보다 보존적 인 치과치료와 편안한 치료 환경을 제공해야 할 필요성을 제시하고 있다.

• 치위생과학회지
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• 제11권1호
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• pp.31-35
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• 2011

본 연구는 치과 의료기관의 건강보험 청구실태를 파악하여 향후 효율적인 치과 건강보험 청구관리를 위한 기초자료를 제공하고자 2010년 4월 20일부터 6월 20일까지 서울, 인천 경기, 부산 울산 및 일부 지역에 소재한 치과 의료기관을 대상으로 설문조사를 실시한 결과 다음과 같은 결론을 얻었다. 1. 치과 건강보험 청구형태는 병원 내 인력을 활용하여 청구하는 단독청구가 45.4% 응답하였으며, 대행청구 54.6%이었다. 청구자의 직종은 치과위생사 78.2%, 일반사무원 7.2%, 간호조무사 6.5%, 치과의사 4.5%, 기타 3.5%로 조사되었다. 청구건수는 200건 이하가 23.9%, 201건-400건이 40.3%, 401건 이상이 35.8% 이었다. 2. 청구건수에 의한 분석에서 청구 건수가 적은 경우일수록 대행청구는 하는 의료기관이 76.3%로 많았고 청구건수가 많을수록 단독청구의 비율이 높아졌으며, 개원기간에 따른 분석에서는 단독청구를 하는 의료 기관은 개원기간이 5년 이하인 경우 82.7%, 개원기간이 16년 이상인 경우 31.3%로 개원기간이 짧을수록 단독청구를 하는 의료기관이 많았다(p<0.000). 3. 병원 인력 수에 따른 분석에서 4인 이하인 경우는 단독청구가 25.4%, 대행청구가 74.6%로 대행청구가 많았으나 9인 이상인 경우에는 단독청구가 71.1%, 대행청구가 32.6%이었다(p<0.000). 4. 치과위생사 수에 따라 청구방식의 차이를 분석한 결과 치과위생사가 없는 경우는 86.5%가 대행청구를하고 있었으며 치과위생사 수가 많아질수록 단독청구 방식을 선택하고 있었으며 통계적으로 유의한 차이가 있는 것으로 분석되었다(p<0.000). 5. 치과 의료기관에서 대행청구를 하는 이유를 분석한 결과 복잡한 청구절차가 28.0%로 가장 많았으며 다음으로 청구업무의 실력부족 22.6%, 청구업무인력의 인재부재가 20.8%이었다.