• 한국전산유체공학회:학술대회논문집
• /
• 한국전산유체공학회 2010년 춘계학술대회논문집
• /
• pp.271-276
• /
• 2010

High-speed air turbine handpieces have been used as a denture cutting tool in clinical dentistry for over 50 years. The denture high-speed air turbine handpiece is currently used as the main means of cutting tooth structure and restorative materials in a wide range of denture manufacturing. But little study has been reported on their performance analysis. This research would show the performance characteristics of denture air turbine handpiece by using CFD.

• 대한치과기공학회지
• /
• 제32권1호
• /
• pp.35-43
• /
• 2010

Purpose: The purpose of this study is dental technicians perception investigation about national health insurance of old persons denture in metropolitan area. Methods: A survey was performed on 103 subjects in metropolitan from January 14 to April 30 in 2009. The research tool was a structured questionnaire. The collected data was analyzed by frequency, descriptive and multiple linear regression. Results: Total dental technician who respond to questionnaire was 103(100.0%). Male respondent appeared by 66.0%. 30-year-old low respondent appeared by 60.2% and subjects lived the most in seoul(68.0%). When got married, was expose that realization about national health insurance of old person s denture was high(p<0.05). When made denture, was expose that realization about national health insurance of old person s denture was high(p<0.05). Also, When got married, was expose that necessity about national health insurance of old persons denture was high(p<0.001). Conclusion: When did national health insurance of old persons denture, there were a lot of problems. But, old people was need it. Therefore, I desire that this study is used to basic data of the national health insurance.

• 대한치과보철학회지
• /
• 제53권3호
• /
• pp.250-255
• /
• 2015

심한 잔존치조제의 흡수와 의치지지조직의 손상을 동반한 총의치 난증례는 정확한 진단과 체계적인 치료계획 수립을 통해 보철물의 유지, 안정, 지지를 증진시켜야 한다. Provisional restoration은 총의치의 안정성을 다각도로 평가하고 환자와 치과의사의 피드백을 가능하게 하는 유용한 도구로서 사용될 수 있다. 본 증례에서는 진단용의치를 통해 인상면, 연마면, 교합면을 평가하여 의치의 안정성을 증대시키고 환자의 심미적 요구를 반영하여 최종의치로 이행하였으며 임상적으로 기능과 심미적인 측면에 있어서 만족할 만한 결과를 얻었기에 이를 보고하고자 한다.

• 대한치과보철학회지
• /
• 제19권1호
• /
• pp.39-45
• /
• 1981

Distal-extension removable partial dentures have long been implicated in the increase in mobility and the destruction of the supporting structures of the primary abutment teeth. Various clasping systems have traditionally been used to retain distal extension removable partial dentures, and other designs have been proposed to minimize torquing forces on the abutment teeth. Most recent studies investigating the effects of removable partial dentures on abutment teeth have been performed in it laboratory setting. Results obtained from in vitro research have given dentists insight into removable partial denture design, but laboratory test model cannot be constructed that simulates actual functional or parafunctiona1 movements and forces. The purpose of this study was to clinically evaluate the degree of tooth mobility produced by two clasping systems (suprabulge type and infrabulge type) used for distal extension removable partial dentures. Akers clasp and R.P.I. system were selected for the evaluation, and four patients required a distal extension removable partial denture on the mandibular arch were selected for participation in the study. Two partial dentures were constructed in the same condition expect the design of clasp. All abutments in the study were mandibular first or second premolars. Measurements of mobility were made with a research tool designed by $M\"{u}hlemann$. This instrument, periodontometer, measures tooth mobility in the mouth by means of a dial gauge accurated to 0.01mm when the tooth is stressed with a force meter. Lingual and buccal deflection of abutment tooth was measured using buccal and lingual pressure. The amount of force applied was 500gm. Tooth mobility tests were made at four key stages; 1. Before insertion of the first removable partial denture, baseline mobility was establsihed. 2. After wearing of the first prosthesis, measurement was made at weekly intervals for 4 weeks. 3. The removable partial denture was then taken from the patient, and tooth mobility was measured again at weekly intervals until the patient's established baseline mobility had returned. 4. The second prosthesis of different clasp design was worn for a month and evaluated in the same manner as the first. The sequence of placement of clasping system was alternated between patients. The following results were obtained from this study; 1. The mobility of abutment tooth increased during the initial stage of wear and returned to baseline mobility after removal of removable partial dentures. 2. The mobility of abutment tooth showed no difference between Akers clasp and I-bar clasp during the 4-week test period. 3. All teeth tested showed greater mobility toward the buccal than the lingual direction.

• 구강회복응용과학지
• /
• 제18권2호
• /
• pp.113-118
• /
• 2002

Long bridge가 필요한 구강암종환자에게 자기공명영상을 촬영하여야 하는 경우, fiber reinforced polymer ceramics로 잠정보철물을 제작해준 경우 충분한 파절 저항성과 심미성을 얻을 수 있었다. 하지만, 여기에 대한 장기간의 연구와 관찰이 필요하리라 사료된다.

• 재활치료과학
• /
• 제13권3호
• /
• pp.69-83
• /
• 2024

목적 : 본 연구의 목적은 강원특별자치도 춘천 지역에 거주하는 노인을 대상으로 연하장애의 유병률을 조사하고, 연하장애와 관련된 삶의 질과 교육 요구도를 확인하는 것이다. 연구방법 : 2023년 8월 1일부터 15일까지 강원특별자치도 춘천 지역에 위치한 3개 노인복지관에서 지역사회 거주 노인 207명을 대상으로 단면조사를 실시하였다. 일반적인 특성, Korean-version of Eating Assessment Tool (K-EAT-10), Korean-version of Swallowing Quality of Life Questionnaire (K-SWAL-QOL), 연하장애 관련 교육 요구도를 확인하고, K-EAT-10 3점을 기준으로 연하장애 정상군과 위험군을 나누었다. 카이제곱과 독립표본 t검정을 이용하여 두 그룹 간 차이를 분석하였다. 결과 : K-EAT-10 총점 3점 이상인 연하장애 위험군의 유병률은 41.5% (86명)였다. 자신에게 연하장애 증상이 있음을 인지한 92명 중 64명(69.6%)이 연하장애 위험군에 속하였다. 정상군과 위험군 간 삶의 질에는 유의미한 차이가 있었으며, 독거노인과 의치 사용 불편한 노인에서 위험도가 높았다. 교육 요구도는 단단한 음식을 잘 먹는 능력 교육을 가장 선호(Mean = 4.27점)하였으며, 연하장애 정상군보다 위험군에서 높게 나타났다. 결론 : 본 연구를 통해 지역사회 거주 노인의 연하장애 유병률, 삶의질, 교육 요구도를 확인하였다. 이에 따라, 연하장애 유병률이 높은 노인을 대상으로 한 예방 프로그램 개발과 조기 발견 및 예방을 위한 홍보 및 교육 프로그램의 필요성을 강조한다. 이러한 프로그램은 연하 재활 전문가의 중요성을 강조하며, 지역사회에서 적극적인 협력을 통해 노인의 건강한 노후를 지원하는 정책과 프로그램이 필요할 것이다.

• Tuberculosis and Respiratory Diseases
• /
• 제64권6호
• /
• pp.456-459
• /
• 2008

기관지 이물 흡인은 생명을 위협할 수 있는 응급 질환으로 자세한 병력 청취, 증상, 이학적 검사, 방사선학적 검사를 통해 진단할 수 있다. 하지만 흡인 물질이 방사선 투과성이거나 환자가 흡인 사실을 기억하지 못한다면 진단에 어려움이 따른다. 본 증례는 환자가 방사선 투과성 물질인 임시 수지 가공의치(temporary resin bridge)를 흡인하였으나, 환자가 이를 인지하지 못하였고 흉부 X선에서도 특이소견이 발견되지 않아 기관지 이물 흡인의 가능성을 예측하지 못하였던 경우였다. 또한 이와 관련되어 드물게 발생하는 염증성 용종을 경험하였기에 문헌고찰과 함께 보고하는 바이다.