• 대한통합의학회지
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• 제8권2호
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• pp.149-157
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• 2020

Purpose : The purpose of this study was that For high school students in Busan, in order to provide basic data in selecting dental hygienists by establishing the correct perception and image of dental hygienists by identifying the image of dentists and career doctors who will choose dental hygienists. Methods : The comparison of group differences with dental hygienists' images was analyzed with independent sample t-test and one-way ANOVA. Correlation between image factors of dental hygienists was analyzed using Pearson's correction coefficient. Results : The image for dental hygienists averaged 3.87 points overall, while the average for each area of the image was 4.09 points for professional images, 4.07 points for business images, 4.08 points for personal images and 3.28 points for social images. When choosing a career path, 18.8 percent said they would not consider dental hygiene, and if they said they would consider dental hygiene, both work, professional, personal and social images were significantly high (p<.05). Professional and professional images (r=.975, p<.05) in the correlation between factors of dental hygienist images, personal and professional images (r=.942, p<.05), social and professional images (r=.865, p<.05), business and personal images (r=.924, p<.05), business image and social image (r=.858, p<.05), personal and social images (r=.882, p<.05) expressed a statistically significant amount of correlation. Conclusion : The study found that high school students' image of dental hygienists was rather positive, but their social image was rather low, and most students did not consider dental hygiene. Therefore, specific measures will be needed to build a desirable image for dental hygienists and positively recognize dental hygienists with active promotion and career experience for dental hygienists in the future.

• 치위생과학회지
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• 제17권2호
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• pp.108-115
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• 2017

본 연구는 교사들의 치과위생사 이미지와 치위생직 진로 권유의사를 알아보기 위하여 2016년 2월 1일부터 2월 28일까지 광주광역시에 소재한 인문계 고등학교에서 근무하고 있는 교사 212명을 대상으로 연구 참여에 동의한 대상자에 한해 설문조사를 실시하였으며, 다음과 같은 결론을 얻었다. 치과위생사 이미지 전체 평균은 3.50점이었으며, 영역별로는 개인적 이미지(3.83점)가 가장 높게 나타났다. 연구대상자의 일반적 특성과 치과위생사 이미지 분석 결과, 치과위생사의 소개나 설명을 들은 경험이 있는 경우, 최근 치과치료를 받은 경험이 1년 이내인 경우 유의하게 높게 나타났다(p<0.01, p<0.001). 치과위생사 이미지의 요인 간의 상관관계에서는 통계적으로 유의한 양의 상관관계를 나타냈다. 치과위생사의 이미지에 영향을 미치는 요인을 분석한 결과, 직업적 이미지는 업무적 이미지(B=0.429)와 사회적 이미지(B=0.253)가 높을수록, 업무적 이미지는 직업적 이미지(B=0.328)와 개인적 이미지(B=0.510)가 높을수록, 개인적 이미지는 업무적 이미지(B=0.710)와 치과위생사에 대한 소개나 설명을 들은 경험(B=0.215)이 많을수록, 사회적 이미지는 직업적 이미지(B=0.392)가 높을수록 그리고 치과치료를 받은 경험이 1년 이내(B=0.158)일수록 치과위생사의 이미지가 높았다. 교사의 치위생직 권유 의사에 미치는 영향력을 알아본 결과, 사회적 이미지와 직업적 이미지 점수가 1점 증가할 때 권유 의사가 있을 가능성이 증가하였다. 따라서 치과위생사의 사회적 이미지를 향상시키기 위해서는 전문직에 합당한 근무조건 및 환경 개선이 필요하고, 새로운 전문지식 및 기술 습득을 위한 교육의 기회를 확대하여야 할 것으로 생각된다.

• 대한치과의사협회지
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• 제54권9호
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• pp.704-711
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• 2016

Radiologic images in dentistry are essential to perform the diagnosis, treatment, and tracking process of prognosis, thus the ability of accurate evaluation in the diagnostic images is requested for dental clinician. Radiologic interpretation means recognition of a normality and an abnormality and to report the possible diagnosis and differential diagnosis list. Therefore, dental clinicians should be familiar with the basic principle of interpretation of intraoral and extraoral radiographic images primarily used in dental clinics. Recently, dental cone beam CT is widely used for diagnositc process, thus understanding the three dimensional images is requested. The objective of this manuscript is to help the dental clinicians to interpret accurately the diagnostic images by introducing the basic principles of the step by step analytic process in the appearance of a lesion.

• 한국치위생학회지
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• 제8권3호
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• pp.23-36
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• 2008

This study lays its purpose on providing basic material for managing dental hygiene care programs by grasping images of the elderly perceived by dental hygienists and their behaviors toward the elderly, who have an important role in improving the elderly's dental health in the aging society. For these purposes, the researcher conducted a self-administrative questionnaire survey of 370 dental hygienists working in dental clinics or offices located in the Seoul and Daejeon areas from June 2 to 21 in 2008 and collected data, statistical analysis of the $x^2$-test, t-test, one-way ANOVA, Pearson Correlation used. resulting in the following findings. 1. In perceived images of the elderly according to their general characteristics, a subject group with under 8-year career showed 85.38 points, indicating the statistically significant difference (p=0.001). 2. When we look at perceived images of the elderly and behaviors toward them according their characteristics, in images of the elderly, a subject group with positive perceptions of the elderly showed 85.51 points (p=0.000), a subject group with meaningful old person(s), 84.66 points (p=0.000), a subject group living with old person(s), 86.04 points (p=0.001), and a subject group with experience in volunteer service activities, 84.11 points (p=0.001), and in behaviors toward the elderly, a subject group with positive perceptions of the elderly and with meaningful old person(s) showed 56.46 (p=0.036) and 55.91 points respectively, indicating the statistically significant difference (p=0.040). 3. Images of the elderly and behaviors toward them showed a positive correlation, indicating that the more positive images of the elderly, the more positive behaviors toward them (r=0.317). Putting these results together, it is thought that it is time to need continuous education and efforts regarding the formation of desirable relationships with and images of the elderly and behaviors toward them, for dental hygienists who have an important role in managing and enhancing the elderly's dental health in the aging society.

• Imaging Science in Dentistry
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• 제48권1호
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• pp.41-44
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• 2018

Purpose: To evaluate the effect of different numbers of basis images and the use of metal artifact reduction (MAR) on the production and reduction of artifacts in cone-beam computed tomography images. Materials and Methods: An acrylic resin phantom with a metal alloy sample was scanned, with 450 or 720 basis images and with or without MAR. Standard deviation values for the test areas (around the metal object) were obtained as a way of measuring artifact production. Two-way analysis of variance was used with a 5% significance level. Results: There was no significant difference in artifact production among the images obtained with different numbers of basis images without MAR (P=.985). MAR significantly reduced artifact production in the test areas only in the protocol using 720 basis images (P=.017). The protocol using 450 basis images with MAR showed no significant difference in artifact production when compared to the protocol using 720 basis images with MAR (P=.579). Conclusion: Protocols with a smaller number of basis images and with MAR activated are preferable for minimizing artifact production in tomographic images without exposing the patient to a greater radiation dose.

• Imaging Science in Dentistry
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• 제50권4호
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• pp.373-376
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• 2020

This report presents a rare case of ameloblastoma with histopathologic and radiographic calcification, including 3-dimensional cone-beam computed tomographic (CBCT) images. A 22-year-old woman had hard swelling on the right mandible. Panoramic and CBCT images showed multilocular radiolucencies with internal calcification foci in the right mandible. Three-dimensional images clearly showed varying-sized radiopacities within the lesion from various angles. A histopathologic examination showed central squamous differentiation and more densely packed peripheral palisading ameloblastic cells. Many areas of keratin pearls and calcifications were also seen. Four previous reports have described 5 cases of ameloblastoma showing histopathologic calcification. This might be the first report to present the calcification of ameloblastoma on panoramic and CBCT images, especially on 3-dimensional images.

• Imaging Science in Dentistry
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• 제32권1호
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• pp.19-25
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• 2002

Purpose: To evaluate the degree of accuracy of DentaScan reformatted images of the maxillary sinus and periapical, periodontal lesions and to clarify the usefulness of the reconstructed 3-dimensional images to the dental clinical aspects. Materials and Methods: 33 sides of maxillae of the hemi-sectioned Korean heads were used in this study. Periapical radiographs, computed tomography and DentaScan reformatted cross-sectional images were taken for the radiographic evaluation of the peiapical and peiodontal lesions of the maxillary teeth and inferior wall of maxillary sinus. Results : Compared the degree of accuracy and findings of dental and periapical pathoses on the intraoral radiographs and DentaScan reformatted images with the cross-sectioned specimens, the DentaScan reformatted cross-sectional images were more accurate and more effective than the intraoral radiography with a viewpoint of the detection of dental and periapical pathoses. Conclusion: Comparing the lesions of specimens with intraoral radiographies and DentaScan reformatted images, the dental and periodontal pathoses and topographical structures were more clearly observed in the DentaScan reformatted images, providing the possibility of more applications of reformatted images to clinical dentistry.

• 치위생과학회지
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• 제15권6호
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• pp.689-695
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• 2015

본 연구는 고등학생을 대상으로 치과위생사에 대한 이미지와 치위생직 고려의사를 파악하기 위해 광주지역의 인문계 고등학교에 재학 중인 학생 199명을 대상으로 설문조사하여 다음과 같은 결론을 얻었다. 치과위생사에 대한 이미지는 전체평균 3.36점이었고, 영역별 평균은 개인적 이미지가 3.64점, 직업적 이미지가 3.47점, 업무적 이미지가 3.42점, 사회적 이미지가 2.83점 순이었다. 고등학생의 일반적인 특성과 치과위생사의 이미지를 분석한 결과, 가족 중 치과종사자가 있고, 치과 치료경험이 1년 미만일 경우, 치위생직에 대한 소개나 설명을 들은 경우, 진료 장소가 종합(대학)병원일 경우 유의하게 높게 나타났다(p<0.01, p<0.05). 진로선택 시 치위생직을 고려하겠다고 응답한 경우가 9.0%로 대부분이 고려하지 않겠다고 응답하였으며, 치위생직을 고려하겠다고 응답한 경우 업무적, 사회적 이미지가 유의하게 높게 나타났다(p<0.05). 치과위생사 이미지의 요인 간의 상관관계에서 직업적 이미지와 업무적 이미지(r=0.551, p<0.001), 개인적 이미지와 직업적 이미지(r=0.526, p<0.001), 사회적 이미지와 직업적 이미지(r=0.222, p<0.01), 업무적 이미지와 개인적 이미지(r=0.655, p<0.001), 업무적 이미지와 사회적 이미지(r=0.140, p<0.05)는 통계적으로 유의한 양의 상관관계를 나타냈다. 이상의 결과는 고등학생의 치과위생사에 대한 이미지는 다소 긍정적이었으나, 사회적 이미지가 낮은 편이었으며, 대부분의 학생이 치위생직을 고려하지 않는 것으로 나타났다. 따라서 향후 치과위생사에 대한 적극적인 홍보와 소개로 치과위생사에 대해 긍정적으로 인식할 수 있도록 하는 구체적인 방안이 필요하다고 생각된다.

• 치위생과학회지
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• 제21권4호
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• pp.219-226
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• 2021

Background: Proper detection and management of dental plaque are essential for individual oral health. We aimed to evaluate the maturation level of dental plaque using a two-tone disclosing agent and to compare it with the fluorescence of dental plaque on the quantitative light-induced fluorescence (QLF) image to obtain primary data for the development of a new dental plaque scoring system. Methods: Twenty-eight subjects who consented to participate after understanding the purpose of the study were screened. The images of the anterior teeth were obtained using the QLF device. Subsequently, dental plaque was stained with a two-tone disclosing solution and a photograph was obtained with a digital single-lens reflex (DSLR) camera. The staining scores were assigned as follows: 0 for no staining, 1 for pink staining, and 2 for blue staining. The marked points on the DSLR images were selected for RGB color analysis. The relationship between dental plaque maturation and the red/green (R/G) ratio was evaluated using Spearman's rank correlation. Additionally, different red fluorescence values according to dental plaque accumulation were assessed using one-way analysis of variance followed by Scheffe's post-hoc test to identify statistically significant differences between the groups. Results: A comparison of the intensity of red fluorescence according to the maturation of the two-tone stained dental plaque confirmed that R/G ratio was higher in the QLF images with dental plaque maturation (p<0.001). Correlation analysis between the stained dental plaque and the red fluorescence intensity in the QLF image confirmed an excellent positive correlation (p<0.001). Conclusion: A new plaque scoring system can be developed based on the results of the present study. In addition, these study results may also help in dental plaque management in the clinical setting.

• Imaging Science in Dentistry
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• 제44권2호
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• pp.155-160
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• 2014

Purpose: The purposes of this study were to develop a workstation computer that allowed intraoperative touchless control of diagnostic and surgical images by a surgeon, and to report the preliminary experience with the use of the system in a series of cases in which dental surgery was performed. Materials and Methods: A custom workstation with a new motion sensing input device (Leap Motion) was set up in order to use a natural user interface (NUI) to manipulate the imaging software by hand gestures. The system allowed intraoperative touchless control of the surgical images. Results: For the first time in the literature, an NUI system was used for a pilot study during 11 dental surgery procedures including tooth extractions, dental implant placements, and guided bone regeneration. No complications were reported. The system performed very well and was very useful. Conclusion: The proposed system fulfilled the objective of providing touchless access and control of the system of images and a three-dimensional surgical plan, thus allowing the maintenance of sterile conditions. The interaction between surgical staff, under sterile conditions, and computer equipment has been a key issue. The solution with an NUI with touchless control of the images seems to be closer to an ideal. The cost of the sensor system is quite low; this could facilitate its incorporation into the practice of routine dental surgery. This technology has enormous potential in dental surgery and other healthcare specialties.