• 치위생과학회지
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• 제11권6호
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• pp.481-487
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• 2011

본 연구에서는 보건계열 3학년 대학생을 대상으로 향후 실무에서 함께 일할 보건 인력이 치과위생사를 어떤 이미지 지각하는지를 파악하기 위하여 2011년 3월 14 부터 6월 1일까지 설문지를 통해 조사하였다. 총 539부의 자료를 사용하였으며, SPSS WIN 12.0 프로그램을 이용하여 분석한 결과 다음과 같은 결론을 얻었다. 1. 치과위생사의 이미지 총점은 145점 만점에 86.57점이고, 평점은 5점 만점에 2.99점이었다. 2. 지역별 치과위생사 이미지 총 평점은 지역별로는 대도시 대학생이 89.07점으로 중소도시 학생들 85.03점 보다 치과위생사 이미지 총 점수가 조금 더 높았으며, 통계적으로 유의한 차이를 보였다(p=0.004). 학과별로는 물리치료과가 88.89점, 치기공과, 방사선과는 86.91점, 임상병리과가 83.28점 순으로 유의한 차이를 나타냈다(p=0.046). 3. 지역별 치과위생사의 이미지 하위 4개 영역(자질, 역할, 사회참여, 대인관계) 차이는 자질(p=0.000), 역할(p=0.006), 대인관계(p=0.014)에서 통계적으로 유의한 차이를 보였으며, 학과별로는 물리치료과 학생이 4개 영역 모두에서 가장 높은 점수를 보였으며, 또한 사회참여영역(p=0.021)과 대인관계영역(p=0.002)에서 통계적으로 유의한 차이를 보였다. 4. 대학생의 치과위생사 이미지 형성을 준 복수 응답 문항은 응답자의 67.9%가 '치과(병)의원에서의 치과위생사 모습'에서가 가장 높게 나타났다.

• 대한치과기공학회지
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• 제11권1호
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• pp.95-102
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• 1989

This study was performed to study the efficiency of a local ventilation system, installed in dental laboratories, and of two types of protecting face masks. The dust originating from the workpiece as well as from the wheels and stones was collected on air filters in the cutting cycle during coarse and fine grinding, and in the subsequent polishing procedures of each specific dental material. The efficiency of the ventilation system was measured on the basis of weight reduction of dust in the breathing air at a distance about 20-40 cm from workpiece. The results were as follows: 1. Use of the local ventilation system reduced the amounts of respirable dust to an average level of 21.4%, although the efficiency of the local ventilation system varied depending upon materials used. 2. Mounting a nozzle on the tube improved the efficiency of the ventilation system considerably. The efficiency of the local ventilation system also increased as the workpiece was closing to the tube inlet. 3. With or without the local ventilation system, the distance between the position of the workpiece and sampler greatly affected the dust level. 4. The face masks covering the sampler improved the efficiency of the ventilation system considerably.

• 대한치과기공학회지
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• 제28권1호
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• pp.161-176
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• 2006

The purpose of this study was to evaluate smoking of dental technicians in 2005, and we have distributed questionnaires about smoking in 2005-KDTA general meeting and analyzed them. All 555 respondents who attended KDTA general meeting were selected by random sampling. However we dismissed 41 because of invalidness, so we got 504 people. Therefore, we have got conclusions below: 1. The rate of smokers who attended in 2005 KDTA was 33.93%, 46.3% in men, 1.44% in women. When we compared to other specialist groups, the rate of dental technician smokers was higher than them. 2. When we analyzed the ages of first smoking, 55.56% of the people started to smoke when they were in 24 years old. This result was very similar to the rate of dentist smokers in 2005 KDA research. 3. According to the answers of smokers and people who wire smokers in the past about quitting smoking period and willness in future, 60.82% among all members failed to quit smoking and also 69.2% among all members did not leap over 3 months but, they have thought to quit smoking for 6 months. 4. According to the answers about antismoking training related to environment in dental and clinical labs, most dental technicians(92.66%) have never been trained, also 37.70% among all members have not fulfilled their duty at self office. They have not recognized the danger of the indirect smoking. 5. When we asked chiefs in dental and clinical labs, the reason why they, didn't do the antismoking training their staffs, 32.1% of them replied that they were so busy, and 42.13% did because of their staffs, abhorrence and needlessness. 6. As Pan-dentistry members, over 80% agreed to the thought of the antismoking, also had medical knowledge about smoking. So we have the conclusion that dental technicians have identification as the Pan-dentistry members. 7. Most dental technicians expected KDTA to play a role about the antismoking training for their members. We have two suggestions to KDTA about the antismoking problem for members according to above conclusions. First, KDTA should prepare the antismoking training in the curriculum. Second, KDTA should support the antismoking programs of schools for students.

• 대한치과기공학회지
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• 제11권1호
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• pp.89-93
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• 1989

The purpose of this study was to evaluate the effect of sprue length and casting pressure on the relative castability of the base metal alloys, commonly used to make porcelain metal restoration. Samples of total 30 were constucted and devided into 6 groups according to three variables (low, medium, high). The total number of complety cast squares were counted, verified and recorded. The results of this 1. main effect of casting pressure was statistically significant.(P<0.05). 2. main effect of sprue length was not statistically significant.

• 대한치과기공학회지
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• 제12권1호
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• pp.103-106
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• 1990

The purpose of this study was to determine if homogeneity of the resin associated with benchcuring could be obtained in the curing unit as the water increased from room temperature to curing temperature. The results of the experiment were as follows : 1. Long periods of bench-curing are not necessary. 2. Bench-curing can take place in the water bath of the curing unit. When this procedure is used, the water should be far enough below the temerature at which active polymerization of the resin proceeds to allow the bench-curing to occur.

• 대한치과기공학회지
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• 제20권1호
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• pp.21-25
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• 1998

A detailed description of the Laboratory Processing procedures for Soft Base Denture that varies from those offered by the manufacturer has provid to be effective. As follows ; 1. Pomotion of patient's comfortability 2. increase in denture retention 3. because of the same heat-curing denture materials used improves bonding & endurance 4. often used denture refitting 5. reducing the rate of alveolar absorption The processing for soft base denture is very sensitive, consequntly.

• 대한치과기공학회지
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• 제6권1호
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• pp.15-18
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• 1984

A denture that shifts easily in response to latterally applied forces can cause a disruption in the border seal or prevent the denture base from Correctly relating to the supporting tissue. The factors that Contribute to stability include ridge height and conformation, base adaptation, residual ridge relationships, occlusion harmony, and Muscle control. These factors can be condensed into the following categories; 1. The relationship of the denture base to the underlying tissue. 2. The relationship of occlusal harmony. 3. The relationship of the denture surface and border to the surrounding muscle. 4. The location of artificial tooth.

• 대한치과기공학회지
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• 제14권1호
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• pp.133-138
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• 1992

The base of a metal base denture that is made of acrylic resin base and metal in lined by soft liner named silicon rubber and its merits are as follows. 1. It has a good retention and fastness. 2. It has a good comfort and stability. 3. It is easy to mix various kinds of base materials. 4. It is easy to repair. 5. The pressure of bone and mucosal tissue is decreased and bite force is dispersed.

• 대한치과기공학회지
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• 제14권1호
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• pp.91-94
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• 1992

This study was made to change dimension of self-curing resin by various curing technics. Specimens were fabricated 45 by 7 curing method. Six measurements(distances AB,BC,CD, AD, AC, and BD) were made of mold section and recorded with micrometer(1/20 mm). The results of the experiment were as follows : 1. The air pressure cured specimens exhibited more distoration than the bench-cured, watercured, and monomer atmosphere-cured specimens(P < 0.05). 2. The water pressure cured specimens exhibited more distoration sphere-cured specimens (P < 0.(15).

• 한국컴퓨터정보학회논문지
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• 제28권7호
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• pp.113-120
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• 2023

본 연구는 심폐소생술 시 착용하는 마스크의 유형에 따라 심장압박의 정확도, 피로도 및 생리학적 변화를 파악하고자 한다. 연구는 2022년 5월 9일부터 12일까지 D대학교 응급구조과 재학생 중 BLS provider를 소지하고 있는 학생 총 24명을 대상자로 선정하여 수술 마스크(Dental mask), 미세입자 94%차단마스크(KF94 mask)를 각각 12명씩 착용하고 총 7회에 걸쳐 2분간 심폐소생술을 실시하였다. 연구 결과, 마스크 유형에 따른 구조자의 가슴압박의 질 분석에는 KF94를 착용한 그룹에서 압박속도(F=24.91, p<.001),와 손의 위치불량(F=14.54, p=.024)에서 유의한 차이를 보였고, 피로도를 분석한 결과에서는 Dental mask그룹(F=51.16, p<.001)과 KF94그룹(F=63.49, p<.001) 모두에서 유의한 차이를 보였다. 생리학적 변화를 분석한 결과에서 심박동수를 살펴보면, Dental mask그룹(F=34.79, p<.001)과 KF94그룹(F=35.55, p<.001) 모두에서 유의한 차이를 보였고, 호흡수 측정결과에서도 Dental mask그룹(F=25.02, p=.001)과 KF94그룹(F=23.03, p=.002) 모두에서 유의한 차이를 보였다. 따라서 현장활동의 가장 중요한 심폐소생술시에는 효율적인 가슴압박의 정확도와 구조자의 피로도 및 생리학적 변화의 감소를 위해서는 구조자의 유형에 따른 개인보호장비를 착용하는 것이 필요할 것이다.