• 제목/요약/키워드: Dental Portable Equipment

검색결과 8건 처리시간 0.013초

치과위생사의 이동형 구내방사선 촬영에 관한 방사선 방어 교육, 지식, 수행에 관한 연구 (A study on radiation safety education, knowledge, and practice in using portable intraoral X-ray equipment of dental hygienist's)

  • 유정민;강보선;김설희
    • 한국치위생학회지
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    • 제17권6호
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    • pp.1053-1065
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    • 2017
  • Objectives: The purpose of this study is to evaluate radiation safety education, knowledge and practice of dental hygienists in using handheld portable intraoral X-ray equipment and to suggest the need for radiation safety education in using handheld portable intraoral X-ray equipment. Methods: We surveyed 223 dental hygienists from July, 2017 to August in the dental clinics of Daejeon, Seoul and Gyeonggi area. Results: Radiation safety educational experience was higher in a year's career (72.9%), than 3 years experience (32.5%) (p<0.05). 82.7% of dental clinic workers took university education for radiation safety education while 55.6% of dental hospital workers took company training (p<0.05). More than 70% of the subjects did not have experience of radiation safety education about using portable intraoral X-ray. Radiation safety knowledge was highest in a year's career (p<0.05). The cumulative dose, radiation sensitivity, and lead defense knowledge were high in all subjects, but knowledge related to scattering radiation and scattering radiation sources was low. Practice of portable intraoral X-ray safety was significantly lower than knowledge. Conclusions: Knowledge of portable intraoral radiography safety is available, but performance is poor. Even with the small amount of radiation exposure, the risk is perceivable. There is a need to actively utilize the provided radiation protection products. In order to do this, efforts should be made to improve knowledge and performance of radiation safety through not only college education but also postemployment training.

치과용 이동형 방사선장치의 선량평가 (Evaluation of Radiation Doses of Dental Portable Equipment)

  • 박훈희;강병삼
    • 대한방사선기술학회지:방사선기술과학
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    • 제41권5호
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    • pp.445-450
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    • 2018
  • We aim to evaluate safety of radiation by measuring leakage dose and patient(phantom) incident dose of ZEN-PX II dental portable equipment developed by G company. Measurement for leakage dose of equipment is conducted on the top, at the bottom, on the left, on the right and at the back. Dose measurement incident on the subject with the area dosimeter when using the phantom and measurement the leakage dose of equipment when using the phantom are evaluated. Comparing the right with the highest leakage dose as a 0 cm, 25 cm, 50 cm, 75 cm and 100 cm dose measurement at the measurement height of 100 cm, 64.2 uR was reduced to 47.3 uR in the senser mode 0.32sec. Even in film mode it was measured at 414.4 uR and about 27% lower at 162.6 uR. As the result of this study, when the irradiation time is 2 sec the right side dose is 290.5 uR and sensor mode is 0.32 sec the right side dose is 64.2 uR.

이동형 치과 X선 발생장치의 공간선량 분포 (Spatial Dose Distribution from Portable Hand-Held Dental X-Ray Equipment)

  • 한경순;안성민
    • 치위생과학회지
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    • 제15권3호
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    • pp.254-258
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    • 2015
  • 치과병의원에서 사용하고 있는 이동형 치과 X선 발생장치를 이용하여 두경부 마네킹에 X선을 조사할 때 주변의 공간선량을 측정하고, 동일한 방법으로 고정형 X선 발생장치에 적용하여 측정된 공간선량을 상호 비교하며, 더불어 기기 및 위치별 공간선량을 비교 분석한 결과는 다음과 같다. 이동형 X선 발생장치의 평균 공간선량은 $37.51{\mu}Sv$로 고정형 X선 발생장치의 $10.77{\mu}Sv$보다 매우 높았다(p<0.001). 이동형 X선 발생장치의 기기별 공간선량은 $17.77{\mu}Sv$부터 $68.90{\mu}Sv$까지 큰 차이를 나타냈다(p<0.05). 위치별로는 직전 위치가 $54.14{\mu}Sv$로 가장 높았고, 직우 위치가 $13.60{\mu}Sv$로 가장 낮았으며, 직좌와 직후 위치는 $42.12{\mu}Sv$, $40.18{\mu}Sv$로 유사하였다(p<0.01). 이상의 결과를 통해 이동용 치과 X선 발생장치는 이동 불가능한 환자만을 대상으로 제한적으로 시행하여야 하며, 반드시 환자와 술자 모두 납 방어복을 착용하여 방사선 피폭을 최소화해야 할 것이다.

Application of portable digital radiography for dental investigations of ancient Egyptian mummies during archaeological excavations: Evaluation and discussion of the advantages and limitations of different approaches and projections

  • Seiler, Roger;Eppenberger, Patrick;Ruhli, Frank
    • Imaging Science in Dentistry
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    • 제48권3호
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    • pp.167-176
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    • 2018
  • Purpose: In the age of X-ray computed tomography (CT) and digital volume tomography (DVT), with their outstanding post-processing capabilities, indications for planar radiography for the study of the dentition of ancient Egyptian mummies may easily be overlooked. In this article, the advantages and limitations of different approaches and projections are discussed for planar oral and maxillofacial radiography using portable digital X-ray equipment during archaeological excavations. Furthermore, recommendations are provided regarding projections and sample positioning in this context. Materials and Methods: A total of 55 specimens, including 19 skeletonized mandibles, 14 skeletonized skulls, 18 separate mummified heads, and 4 partially preserved mummies were imaged using portable digital X-ray equipment in the course of archaeological excavations led by the University of Basel in the Valley of the Kings between 2009 and 2012. Images were evaluated by 2 authors with regard to the visibility of diagnostically relevant dental structures using a 4-point grading system(Likert scale). Results: Overall, the visibility of diagnostically relevant dental structures was rated highest by both authors on X-ray images acquired using a dental detector. The tube-shift technique in the lateral projections of mandibular dentition achieved the second-best rating, and lateral projections achieved the third-best rating. Conclusion: Conventional planar digital X-ray imaging, due to its ubiquity, remains an excellent method-and often the only practicable one-for examining the skulls and teeth of ancient Egyptian mummies under field conditions. Radiographic images of excellent diagnostic quality can be obtained, if an appropriate methodology regarding the selected projections and sample placement is followed.

Assessment of the radiant emittance of damaged/contaminated dental light-curing tips by spectrophotometric methods

  • Abdulrahman A. Balhaddad;Isadora Garcia;Fabricio Collares;Cristopher M. Felix;Nisha Ganesh;Qoot Alkabashi;Ward Massei;Howard Strassler;Mary Anne Melo
    • Restorative Dentistry and Endodontics
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    • 제45권4호
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    • pp.55.1-55.12
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    • 2020
  • Objectives: This study investigated the effects of physically damaged and resin-contaminated tips on radiant emittance, comparing them with new undamaged, non-contaminated tips using 3 pieces of spectrophotometric laboratory equipment. Materials and Methods: Nine tips with damage and/or resin contaminants from actual clinical situations were compared with a new tip without damage or contamination (control group). The radiant emittance was recorded using 3 spectrophotometric methods: a laboratory-grade thermopile, a laboratory-grade integrating sphere, and a portable light collector (checkMARC). Results: A significant difference between the laboratory-grade thermopile and the laboratory-grade integrating sphere was found when the radiant emittance values of the control or damaged/contaminated tips were investigated (p < 0.05), but both methods were comparable to checkMARC (p > 0.05). Regardless of the method used to quantify the light output, the mean radiant emittance values of the damaged/contaminated tips were significantly lower than those of the control (p < 0.05). The beam profile of the damaged/contaminated tips was less homogeneous than that of the control. Conclusions: Damaged/contaminated tips can reduce the radiant emittance output and the homogeneity of the beam, which may affect the energy delivered to composite restorations. The checkMARC spectrophotometer device can be used in dental offices, as it provided values close to those produced by a laboratory-grade integrated sphere spectrophotometer. Dentists should assess the radiant emittance of their light-curing units to ensure optimal curing in photoactivated, resin-based materials.

치과용엑스선장치의 기술문서 작성을 위한 가이드라인 개발 연구 (A Study on Development of Guideline on Writing Technical Document for Electrical Medical Devices: Dental X-ray Equipment)

  • 이승열;김재량;이준호;박창원
    • 대한방사선기술학회지:방사선기술과학
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    • 제39권4호
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    • pp.651-660
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    • 2016
  • 최근 인구고령화로 인하여 치과진료 주요대상인 노인층의 검사가 꾸준히 증가하고 있다. 따라서 치과 진단용 엑스선장치 시장도 꾸준히 성장하고 있으며, 동시에 치과용엑스선장치의 허가 심사건수도 증가하고 있다. 의료기기 기술문서는 의료기기의 허가 심사 시 필수로 요구되는 자료이며, 해당 의료기기의 전반적인 항목을 기술해야 하는 만큼 작성자의 업무 이해도 및 전문성이 필요하다. 그러나 국내 의료기기 제조 수입 업체 대부분이 영세하여 의료기기 인 허가 관련 전문 인력의 확보가 쉽지 않아, 이로 인한 기술문서의 부정확한 작성이 증가하고 있다. 이에 따른 심사자의 민원 처리 지연과, 제품의 신속한 시장 진입의 어려움이 발생되고 있다. 특히 치과용구강외엑스선장치, 치과용구강내엑스선장치, 암형전산화단층엑스선촬영장치, 포터블엑스선 촬영장치(이하 치과용엑스선장치)는 식품의약품안전처 기준 규격이 최근에 제정되거나 부재한 품목으로, 의료기기 제조 수입업체에서 시험항목 설정 시 많은 어려움을 겪고 있기에, 개선된 규격이 반영된 치과용엑스선 장치 가이드라인(안)을 개발하여 관련 업체 및 심사자에게 도움을 주고자 한다. 본 연구를 위하여 첫째, 기술문서에 대한 개선된 제도 운영 조사 및 의료기기의 제도 적용에 따른 문서 작성 방법을 검토하였으며, 둘째, 품목별 시장현황을 조사하고, 국내 외 규격을 분석하였으며, 셋째, 기 허가된 제품의 기술문서를 분석하여 품목별 올바른 작성방법과 국제조화된 시험항목, 기준 및 방법을 도출하였다. 마지막으로, 산 연 관 전문가 협의체 회의를 통하여, 공정하고 전문성이 강화된 기술문서 작성 가이드라인(안)을 도출하였다.

코로나 바이러스 대유행에 따른 치과 의료 관리 가이드라인 (Guidelines for dental clinic infection prevention during COVID-19 pandemic)

  • 김진
    • 대한치과의료관리학회지
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    • 제8권1호
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    • pp.1-7
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    • 2020
  • Dental settings have unique characteristics that warrant specific infection control considerations, including (1) prioritizing the most critical dental services and provide care in a way that minimizes harm to patients due to delayed care, or harm to personnel from potential exposure to persons infected with the COVID-19 disease, and (2) proactively communicate to both personnel and patients the need for them to stay at home if sick. For health care, an interim infection prevention and control recommendation (COVID-19) is recommended for patients suspected of having coronavirus or those whose status has been confirmed. SARS-CoV-2, which is the virus that causes COVID-19, is thought to be spread primarily between people who are in close contact with one another (within 6 feet) through respiratory droplets that are produced when an infected person coughs, sneezes, or talks. Airborne transmission from person-to-person over long distances is unlikely. However, COVID-19 is a new disease, and there remain uncertainties about its mode of spreads and the severity of illness it causes. The virus has been shown to persist in aerosols for several hours, and on some surfaces for days under laboratory conditions. COVID-19 may also be spread by people who are asymptomatic. The practice of dentistry involves the use of rotary dental and surgical instruments, such as handpieces or ultrasonic scalers, and air-water syringes. These instruments create a visible spray that can contain particle droplets of water, saliva, blood, microorganisms, and other debris. While KF 94 masks protect the mucous membranes of the mouth and nose from droplet spatter, they do not provide complete protection against the inhalation of airborne infectious agents. If the patient is afebrile (temperature <100.4°F)* and otherwise without symptoms consistent with COVID-19, then dental care may be provided using appropriate engineering and administrative controls, work practices, and infection control considerations. It is necessary to provide supplies for respiratory hygiene and cough etiquette, including alcohol-based hand rub (ABHR) with 60%~95% alcohol, tissues, and no-touch receptacles for disposal, at healthcare facility entrances, waiting rooms, and patient check-ins. There is also the need to install physical barriers (e.g., glass or plastic windows) in reception areas to limit close contact between triage personnel and potentially infectious patients. Ideally, dental treatment should be provided in individual rooms whenever possible, with a spacing of at least 6 feet between the patient chairs. Further, the use of easy-to-clean floor-to-ceiling barriers will enhance the effectiveness of portable HEPA air filtration systems. Before and after all patient contact, contact with potentially infectious material, and before putting on and after removing personal protective equipment, including gloves, hand hygiene after removal is particularly important to remove any pathogens that may have been transferred to the bare hands during the removal process. ABHR with 60~95% alcohol is to be used, or hands should be washed with soap and water for at least 20 s.

양측저작 운동이 지역사회 거주 노인의 교합력과 깨물근에 미치는 효과 (The Effects of Bilateral Chewing Exercise on Occlusion Force and Masseter Muscle Thickness in Community-Dwelling Elderly)

  • 홍준용;정영진;김민지;황세현;박지수;이기현;김태훈;정남해;윤태형
    • 대한지역사회작업치료학회지
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    • 제10권1호
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    • pp.31-38
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    • 2020
  • 목적 : 본 연구는 6주 동안 적용된 양측저작 운동이 지역사회 거주 노인의 교합력과 깨물근의 부피 미치는 효과를 조사하였다. 연구방법 : 본 연구는 지역사회 거주 노인 29명을 모집하였다. 모든 참가자는 구강용 저작 운동 목적으로 개발된 기구를 이용하여 양측저작 운동을 수행하였다. 저작 운동은 등척성과 등장성 운동으로 구분되어 수행되었으며, 하루 약 20분, 주 5회, 6주 동안 적용되었다. 평가는 휴대용 초음파 장비와 교합력 측정계를 이용하여 3주 간격으로 총 3회에 걸쳐 깨물근의 부피와 최대 교합력을 측정하였다. 결과 : 저작근 부피 변화를 측정한 결과, 중재 전 7.51±0.43. 3주 후 7.63±0.44, 6주 후 7.83±0.46로 통계적으로 유의한 차이를 보였다(F=3.819, p<.05). 사후검증 결과, 중재 전과 6주 후 사이에서 통계적으로 유의한 차이를 보였다(p=.023). 최대 교합력 변화를 측정한 결과, 중재 전 265±9.22. 3주 후 268±9.57, 6주 후 271.59±10.16로 통계적으로 유의한 차이를 보였다(F=3.031, p<.05). 사후검증 결과, 중재 전과 6주 후 사이에서 통계적으로 유의한 차이를 보였다(p=.048). 결론 : 본 연구는 6주 동안의 양측저작 운동이 노인의 깨물근 부피와 교합력 향상에 효과적임을 확인하였다. 그러므로 양측저작 운동은 구강 기능 향상을 위한 치료적 운동방법으로 적용할 수 있을 것으로 생각된다.