• 구강회복응용과학지
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• 제38권4호
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• pp.222-232
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• 2022

목적: 치과 보철치료 과정에서 발생하는 이물질의 삼킴과 흡인에 관한 치과의사의 경험 및 인식을 조사함으로써 그 실태를 연구하고자 하였다. 연구 재료 및 방법: 대전, 충청 지역에 있는 108개 치과 의료 기관에 근무하는 치과의사 157명을 대상으로 설문조사를 시행하여, 빈도분석을 시행하였다. 설문 대상자의 일반적 특성에 따라 환자의 이물질 삼킴과 흡인의 경험 여부에 차이가 있는지 알기 위해 카이제곱 검정을 시행하였고, 관련 교육 이수 여부에 따른 인식도 차이를 알기 위해 독립표본 t-검정을 시행하였다. 결과: 환자의 구강 내에 이물질을 떨어뜨린 경험이 있는 응답자는 99.4%이었고, 환자의 이물질 삼킴과 흡인 경험이 있는 응답자는 53.5%이었다. 여성보다 남성에서, 근무 경력이 길수록, 전문의보다 일반의에서 환자의 이물질 삼킴과 흡인의 경험 빈도가 높았다(P < .05). 관련된 교육을 이수한 응답자는 50.3%이었다. 관련 교육을 이수했을 때 걱정 정도가 작고, 상황에 대한 대처 자신감이 높았으나, 추후 교육을 이수할 의향은 낮게 나타났다 (P < .05). 결론: 일반치료보다 보철치료를 할 때 이물질 떨어뜨림이 16% 더 높게 나타났다. 치과의사의 53.5%는 환자의 이물질 삼킴과 흡인이 발생한 경험이 있었고, 이 중 이물질 삼킴은 92.9%, 흡인은 7.1%이었다.

• 대한치과의사협회지
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• 제48권12호
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• pp.868-879
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• 2010

Adjunctive orthodontic therapy may be required to create appropriate space, to address misalignment and tooth size discrepancy for better function and esthetics. The desired interproximal alveolar contour and gingival embrasure form can be developed during treatment. Various applications of temporary anchorage devices for pre-prosthetic tooth movement allowed clinicians to achieve high efficiency, shorter treatment time, and less discomfort of patient. Biomechanical considerations for the periodontal status of the affected teeth are required to successfully control the vertical and horizontal space. Hence, the interdisciplinary approaches have an essential role in maximizing the favorable treatment outcome. In particular, pivotal Clinical decisions such as whether to open or close the space should be made by consensus of the involved dentists. This article presents the orthodontic treatment approaches for prosthodontic works including mesiodistal and vertical space regaining specially for cases of unrestored teeth over an extended period of time.

• 대한치과의사협회지
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• 제55권6호
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• pp.388-399
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• 2017

Generalized aggressive periodontitis cause intrabony pocket, loss of teeth, and severe alveolar bone defect. As a result, pathologic tooth migration occurs and esthetic problem happens according to this, especially on the anterior teeth of maxilla. The purpose of this study was to assess the multidisciplinary treatment including periodontics, orthodontics and prosthetics of a patient caused by generalized aggressive periodontitis. This study presents a case using full mouth periodontal treatment, immediate orthodontic treatment for 5 months, implantation with guided bone regeneration and free gingival graft, and prosthetic treatment. Treatments took totally 14 months. Periodontal indicators such as probing pocket depth, bleeding on probing, tooth mobility improved. Also, the patient was satisfied with the esthetic and functional improvement.

• Restorative Dentistry and Endodontics
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• 제40권3호
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• pp.236-240
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• 2015

Traumatic dental injury can result in avulsion of anterior teeth. In young patients, it is a challenge to the dental professional because after replantation, late complications such as ankylosis require tooth extraction. Although prosthetic and orthodontic treatment, and implant placement have been described as the options for intervention, autogenous tooth transplantation could be an effective procedure in growing patients if there is a suitable donor tooth available. This case presents the treatment of a patient who suffered a traumatic injury at 9 years old with avulsion of tooth 21, which had been replanted, and intrusion of tooth 11. Both teeth ankylosed; thus they were removed and autotransplantation of premolars was carried out. After transplantation, the tooth underwent root canal treatment because of pulpal necrosis. Orthodontic treatment began 3 months after transplantation and during 7 years' follow-up the aesthetics and function were maintained without signs of resorption.

• 대한치과의사협회지
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• 제50권7호
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• pp.384-393
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• 2012

Successful treatment of a badly broken down tooth with pulpal disease depends not only on good endodontic therapy, but also on good prosthetic reconstruction of the tooth after endodontic therapy is completed. The ideal treatment of endodontically treated teeth has been widely and controversially discussed. Endocrown is a restorative option for endodontically treated teeth. Endocrown design incorporates the core and short post into the crown as a single restoration. The preparation of endocrown consists of a circular equigingival butt-joint margin and central retention cavity of the entire pulp chamber instead of employing intraradicular posts. This design significantly increases the surface area of the preparation available for cementation. It is particularly useful in young patient teeth for long-term provisional restoration and in teeth with short clinical crowns. This technique represents a promising and conservative method for the treatment of endodontically treated teeth that require long-term protection and stability. Endocrown can be considered as a feasible alternative to full crowns or composite overlays for the restoration of non vital teeth.

• 구강회복응용과학지
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• 제33권2호
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• pp.143-153
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• 2017

치아 외상에 따른 흔한 합병증 중 하나는 치아 유착이다. 성인과 달리 성장기 아동에서 유착이 나타날 경우 유착치가 인접 치조골의 성장을 방해하여 치조골의 발육 부전과 이에 따른 개방 교합을 야기한다. 그러나 저위된 유착치를 단순 발치할 경우, 성장 완료 시까지 치조제의 상당한 소실을 유발하여 향후 심미적인 보철물을 수복하기가 어려워진다. 본 증례에서는 성장기에 상악 전치의 유착이 발생한 환자에서 단일 치아 골절단술 후 치조골 신장술과 치관 절제술을 시행하여 상악 전치부의 유착치를 심미적으로 결과를 얻었으므로 소개하고자 한다.

• 대한치과보철학회지
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• 제55권4호
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• pp.444-450
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• 2017

보철적 의사 결정(decision-making)은 다양한 요소가 작용하므로 복잡하며, 치과의사가 분석한 자료를 바탕으로 환자와의 소통을 통해 이루어진다. 다양한 치료 옵션과 그에 따른 결과의 경우의 수가 많아짐에 따라 이러한 의사 결정 과정의 지속적인 재평가가 요구된다. 본 증례는 교합평면의 부조화를 보이는 환자의 교합평면을 재형성하는 치료 방법으로 고정성 보철 수복을 선택하고, 진단 납형 제작을 통한 치료계획의 수립으로 교합평면을 재설정하였다. 충분한 기간 동안 사용하면서 지속적인 재평가를 시행하여 얻은 임시 보철물을 CAD/CAM (Computer-aided design/computer-aided manufacturing)을 이용하여 지르코니아 최종 보철물로 이행하였다. 치료 종결 후 3개월 간의 주기적 내원을 통해 관찰하였을 때 만족스러운 결과를 얻었다.

• 구강회복응용과학지
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• 제34권3호
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• pp.225-231
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• 2018

다운증후군 환자는 일반적으로 구강 관리에 대한 인식과 수행능력의 부족으로 구강위생상태가 불량하며, 치아 상실의 위험이 높다. 또한 작고 불규칙한 치아, 부분 무치증의 구강 내 특징으로 보철 치료에 어려움이 있다. 본 증례는 다운증후군 환자에서 상악 무치악 부위의 임플란트 하이브리드 보철 치료에 대한 케이스를 보고하고자 한다. 최종보철물의 외형은 하악 잔존치와 인공치를 조화롭게 설정하여 결정하였고, 위생관리가 용이하도록 가공치부위를 수정하였다. 결과적으로 심미적, 기능적으로 만족스러운 결과를 얻었기에 이를 보고하고자 한다.

• The Journal of Advanced Prosthodontics
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• 제12권5호
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• pp.273-282
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• 2020

PURPOSE. To assess shear bond strengths (SBS) of resin composites on aged and non-aged prosthetic materials with various surface treatments. MATERIALS AND METHODS. Cerasmart (CE), Vita Enamic (VE), Vita Mark II (VM), and IPS e.max CAD (EC) blocks were sliced, and rectangular-shaped specimens (14 × 12 × 1.5 mm; N = 352) were obtained. Half of the specimens were aged (5000 thermal cycles) for each material. Non-aged and aged specimens were divided into 4 groups according to the surface treatments (control, air abrasion, etching, and laser irradiation; n = 11) and processed for scanning electron microscopy (SEM). The repair procedure was performed after the surface treatments. SBS values and failure types were determined. Obtained data were statistically analyzed (P≤.05). RESULTS. The material type, surface treatment type, and their interactions were found significant with regard to SBS (P<.001). Aging also had a significant effect on prosthetic material-resin composite bonding (P<.001). SBS values of non-aged specimens ranged from 12.16 to 17.91 MPa, while SBS values of aged specimens ranged from 9.46 to 15.61 MPa. Non-aged VM in combination with acid etching presented the highest score while the control group of aged CE showed the lowest. CONCLUSION. Etching was more effective in achieving durable SBS for VM and EC. Laser irradiation could be considered as an alternative surface treatment method to air abrasion for all tested materials. Aging had significant effect on SBS values generated between tested materials and resin composite.

• The Journal of Advanced Prosthodontics
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• 제5권1호
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• pp.51-57
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• 2013

PURPOSE. The purpose of this study was to to analyze the effect of Type 2 diabetes on tooth mortality, implant treatment and prosthetic status. MATERIALS AND METHODS. 275 Type 2 diabetics and 300 non-diabetics, aged 40-80 years were selected for analysis. The assessment of number of teeth, missing teeth, fixed prostheses (bridge pontics), implants using panoramic radiographs and dental records were carried out. RESULTS. Diabetes mellitus (DM) patients had a higher number of missing teeth (P<.05) and placed implants (P=.074), age (P<.05), male gender percentage (P=.042), smoker percentage (P<.05) than non-DM patients. In univariate analysis, the patients in older group showed significantly higher number of tooth loss rate at the first dental examination than the patients in younger group. Tooth loss rate of smokers did not show higher value than that of non-smokers. When multiple variables including DM, age, smoking, gender were considered together, diabetics and older group patients showed significantly higher tooth loss rate at the first dental examination than non-diabetics and younger group patients, respectively. Smokers and male group did not show a significant difference than nonsmokers and female group, respectively. CONCLUSION. Tooth mortality and implant treatment rate were significantly higher in the DM group as indicated by univariate and multivariate logistic regression analysis. Old age groups showed significantly higher odds ratios and tooth loss rate. As diabetics showed the higher tooth loss rate than non-diabetics, diabetics also had more implant restorations than non-diabetics.