• The Journal of Advanced Prosthodontics
• /
• 제2권2호
• /
• pp.50-53
• /
• 2010

BACKGROUND. In order to restore severely attrited teeth properly, surgical intervention in the form of a crown-lengthening procedure may be required. And also, proper diagnosis and treatment sequencing is critical to obtain a successful results. Adequate diagnostic wax-up ensures good esthetics and healthy periodontal tissue. CASE DESCRIPTION. This clinical case report describes a diagnostically based protocol for restoration on mandibular anterior teeth with crown lengthening procedure and the treatment of partially edentulous mandible combined with an edentulous maxilla. In addition, the effort to prevent the combination syndrome was described. CLINICAL IMPLICATION. An interdisciplinary diagnosis and examination through visualization of the desired results ensure conservative and more predictable outcome.

• 대한치과보철학회지
• /
• 제53권3호
• /
• pp.228-233
• /
• 2015

치아의 상실은 저작 및 발음 등의 구강 기능의 저하와 치조골 소실을 가져오며 또한 자신감 결여로 심리적 문제까지 초래하는데, 이는 완전 무치악 환자에서 더 큰 문제를 야기한다. 본 증례의 환자는 다수치아의 상실 및 잔존치 동요도 때문에 임플란트를 이용한 고정성 보철을 원하다는 주소로 내원하였다. 치주적으로 예후가 불량한 모든 잔존치를 발치 하였으며 상하악 완전 무치악에서 임플란트를 이용한 하이브리드보철물을 이용하여 전악 수복 시행하였다. 최종치료 후 심미적, 기능적으로 만족스러운 결과를 얻었기에 이를 보고하고자 한다.

• The Journal of Advanced Prosthodontics
• /
• 제8권3호
• /
• pp.187-193
• /
• 2016

PURPOSE. This pilot study was to find the influence of complete denture on the brain activity and cognitive function of edentulous patients measured through Electroencephalogram (EEG) signals. MATERIALS AND METHODS. The study recruited 20 patients aged from 50 to 60 years requiring complete dentures with inclusion and exclusion criteria. The brain function and cognitive function were analyzed with a mental state questionnaire and a 15-minute analysis of power spectral density of EEG alpha waves. The analysis included edentulous phase and post denture insertion adaptive phase, each done before and after chewing. The results obtained were statistically evaluated. RESULTS. Power Spectral Density (PSD) values increased from edentulous phase to post denture insertion adaption phase. The data were grouped as edentulous phase before chewing (EEG p1-0.0064), edentulous phase after chewing (EEG p2-0.0073), post denture insertion adaptive phase before chewing (EEG p3-0.0077), and post denture insertion adaptive phase after chewing (EEG p4-0.0096). The acquired values were statistically analyzed using paired t-test, which showed statistically significant results (P<.05). CONCLUSION. This pilot study showed functional improvement in brain function of edentulous patients with complete dentures rehabilitation.

• 대한구순구개열학회지
• /
• 제15권1호
• /
• pp.29-38
• /
• 2012

A 20 year-old cleft lip and palate patient came for occlusal rehabilitation, but the constricted maxilla and early loss of posterior teeth called for an unusual treatment modalities. Distraction osteogenesis in the edentulous areas followed by artificial bone graft, dental implant along with orthodontic tooth movement were planed. Multidisciplinary treatment enabled both esthetic and functional oral rehabilitation of this patient.

• 구강회복응용과학지
• /
• 제34권4호
• /
• pp.331-337
• /
• 2018

상악골 결손을 갖고 있는 무치악 환자를 폐쇄장치로 수복할 때 임상가들은 많은 어려움을 겪게 된다. 결손부를 통한 공기의 누출, 안정성과 지지의 부족, 감소된 의치 피개 면적은 의치의 흡착과 변연 폐쇄를 어렵게 한다. 본 증례는 편평상피암에 이환된 우측 상악동 부위에 상악골 절제술을 받은 무치악 환자로 술전 치과 검진, 수술용 폐쇄장치, 이행 폐쇄장치, 그리고 최종 폐쇄장치에 이르는 단계적 치료 과정을 통해 보철적 재건을 완료하였다. 본 증례의 환자는 전상악골 및 양측 상악 결절이 온전하며 한정된 크기의 결손부를 가져 적절한 유지와 지지를 갖는 폐쇄장치를 제작할 수 있었으며 심미 및 기능면에서 양호한 예후를 보였기에 이를 보고하는 바이다.

• 대한치과보철학회지
• /
• 제56권1호
• /
• pp.25-30
• /
• 2018

무치악 환자에서 임플란트 고정성 보철 수복의 장점은 안정성, 편안함을 들 수 있으며, 생물학적 측면으로는 하악골 흡수를 방지할 수 있고 저작기능이 향상된다는 이점이 있다. 그중 하이브리드형 보철 수복은 하악골 이공사이에 4 - 6개의 임플란트를 식립하고 양쪽 원심으로 캔틸레버를 만들어 구치부 치아를 대체하게 된다. 본 증례는 85세 여성 환자로 상하악의 무치악 상태로 본원에 내원하였다. 상악의 가철성 총의치, 하악의 임플란트 하이브리드형 보철물로 최종 치료하여 치료 후 기능적, 심미적으로 만족스러운 결과를 얻었기에 이를 보고하고자 한다.

• 대한치과보철학회지
• /
• 제35권1호
• /
• pp.95-102
• /
• 1997

Ameloblastoma is the most agrressive ofht odontogenic tumors and it arises from the dental lamina or the derivatives of lamina. Ameloblastoma is a benign but locally invasive neoplasm consisting of proliferating odontogenic epithelium lying in a fibrous stroma. Usually the ameloblastomas are diagnosed in the forth and fifth decardes. Over 80% of them occur in the mandible, the remainder in the maxilla. The preferred treatment for ameloblastoma is radical excision, conserving(when possible. the inferior border of the mandible. The functional and esthetic rehabilitation of the partially edentulous patient may prevent the remaining structures from supporting conventional prosthetic treatment. Patients with long edentulous spans, malpositioned teeth, residual ridges defects and high muscle attachments may be offered an osseointegrated fixed prosthesis. Osseointegrated dental implants provide a viable alternative of tooth replacement. This is a case report of 16 year old female with ameloblastoma. We treated patient with radical excision, conserving the inferior border of the mandible and allogenous bone graft. The defected residual ridge area was reconstructed implants(Steri-Oss Implant System). the result was satisfactory.

• 대한치과보철학회지
• /
• 제46권6호
• /
• pp.634-638
• /
• 2008

PURPOSE: The application of computer-aided technology to implant dentistry has created new opportunities for treatment planning, surgery and prosthodontic treatment, but the correct selection and combination of available methods may be challenging in times. Hence, the purpose of this case report is to present a combination of several computer-aided tools as approaches to manage complicated implant case. MATERIAL AND METHODS: A 47 year-old female patient with severe dental anxiety, high expectations, financial restrictions and poor compliance presented for a fixed rehabilitation. A CT scan with a radiographic template obtained with software (SimPlant, Materialize, Leuven, Belgium) was used for treatment planning. The surgical plan was created and converted into a stereolithographic model of the maxilla with bone-supported surgical templates (SurgiGuide, Materialise, Leuven, Belgium), that allowed for the precise placement of 7 implants in a severely resorbed edentulous maxilla. After successful osseointegration, an accurate scan model served as the basis for the fabrication of a one-piece milled titanium framework using the Procera (Nobel Biocare, Gothenburg, Sweden) technology. The final rehabilitation of the edentulous maxilla was rendered in the form of a screw-retained maxillary metal-reinforced resin-based complete prosthesis. RESULTS: Despite challenging circumstances, 7 implants could be placed without bone augmentation in a severely resorbed maxilla using the SimPlant software for pre-implant analysis and the SurgiGuide-system as the surgical template. The patient was successfully restored with a fixed full arch restoration, utilizing the Procera system for the fabrication of a milled titanium framework.

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

• Maxillofacial Plastic and Reconstructive Surgery
• /
• 제19권1호
• /
• pp.35-44
• /
• 1997

The most critical factor in determining which type of implant to be used would be the available bone of the patient. Usually a minimum of 5mm in the bone width and 8mm in the bone height is necessary to ensure primary implant stability and maintain the integrity of bone contact surface. Placement of implant is limited by the several anatomic strutures such as maxillary sinus, floor of the nose, inferior alveolar neurovascular bundle and nasopalatine foramen, etc. When severe resorption of alveolar ridge is encountered, implant placement would be a problematic procedure. A number of techniques to improve the poor anatomic situations have been proposed. This article reports 4 cases of patients using surgical procedures such as blade implant technique, cortical split technique in the anterior maxillary area, sinus lifting and lateral repositioning of inferior alveolar nerve, We treated dental implant candidates with unfavorable alveolar ridge utilizing various surgical techniques, resulted in successful rehabilitation of edentulous ridge.