• Journal of Korean Dental Science
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• 제13권2호
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• pp.43-51
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• 2020

Purpose: The practical examination portion of the National Dental Licensing Examination (NDLE) is slated to be administered in the latter half of 2021 in the form of a clinical performance examination that comprehensively evaluates the patient-dentist interaction using standardized patients (SPs). The SPs should be equipped with the basic qualities and capacity as evaluators for a fair and reliable administration of the test. Materials and Methods: In this study, we analyzed the existing training materials for SPs who participated in domestic and overseas practical tests for the development of training materials for SPs through seminars and surveys of 11 dentistry schools and colleges. Result: First, SPs should be selected according to the basic quality criteria and capacity, which they must possess, and the preliminary basic training about the details which they must have knowledge of and be provided through videorecorded cases before the implementation of the preliminary field training. Second, the roles of SPs and the calibration process of the evaluation result forms are needed when conducting the preliminary field training for SPs. After watching video-recorded scenario cases, the SPs participate in discussions about the watched videos before proceeding to calibration practices of evaluation result forms. Third, because the Type A questionnaire of the practical examination of the NDLE is dependent on the SPs' capacity and training, the fairness of the practical test is largely dependent on the SPs. Therefore, practicing the roles as evaluators and evaluation training should be provided using practical test items that can improve the reliability of the test and show a high level of reproducibility about the same case. Conclusion: The findings of this study will be utilized for the development of training materials for SPs, so they can participate in the administration of a fair and reliable practical examination of the NDLE.

• 한국치위생학회지
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• 제16권6호
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• pp.993-1007
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• 2016

Objectives: The purpose of the study was to review the current status of clinical practice and training in dental hygiene in hospitals and clinics for the students. Methods: A self-reported questionnaire was completed by 80 dental hospitals and clinics from August 8 to September 12, 2016. Except incomplete answers, 211 copies were retrieved and analyzed. The questionnaire consisted of general characteristics of the subjects (6 items), present condition of clinical education (7 items), support policy and facilities (8 items), teaching personnel (6 items), improvement direction (3 items), and general considerations (3 items). Results: The annual practice time for students was 8.4 weeks. The average number of students per each practice institution was 5.95. The evaluation of the clinical practice period was rated as 'average' by 55.3% of the respondents, while 65.4% preferred the current duration of the practice. Meanwhile, 33.0% of the respondents wanted to increase the practice period. In clinical training education support, 62.3% of the hospitals had a person in charge, 79.2% of the hospitals and clinics had a operative procedure, appointed staff and a department for student practice. But 86.5% of the hospitals did not have standards for the budget for practice and instruction fee. In the personnel for clinical training, 52.6% said they were dental hygienists. In 87.1%, the practice instruction conducted by professors was done through communication with the hospital or clinic, while the man-to-man practice instruction was 8.6%. Conclusions: It is necessary to improve the process and operation method of dental hygiene clinical training. In order to make clinical training meet education goals, a standardized set of criteria is needed to support training education and guidelines for instructors and students.

• 한국치위생학회지
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• 제19권6호
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• pp.1025-1036
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• 2019

Objectives: The purpose of this study is to identify the status and opinions of professional oral health care performance in oral cancer patients. Methods: Seven National University Dental Hospitals and the National Cancer Center in Korea surveyed the medical personnel in charge of oral health care for oral cancer patients. The questionnaire consisted of 16 questions, including the status of expert oral health care education and performance for oral cancer patients, etc. A total of 47 questionnaires were retrieved, and the collected data were used in PASW Statistics 23.0 to perform frequency analysis, cross-analysis, and kruskal Wallis tests. Results: A survey of oral health care education found that 29.8% of the medical personnel had received education. The most performed of professional oral health care was found that applying fluoride by dental hygienist, treating stomatitis by dentist, and wiping mouths with sponge by nurse. The assessment of self-performance has shown that applying fluoride by dental hygienists has a statistically significant difference. Only 37.8% of oral health care education for patients was conducted. Most recognized that oral health care in oral cancer patients was important, but it is difficult to provide care due to lack of performance personnel and time, opportunities for performance personnel to be educated. The improvement was found to require an increase in the number of performance personnel, placement of professionals, and practical training to enhance performance capabilities. Conclusions: For oral health care of oral cancer patients, continuous education for medical personnel, establishment of oral health care manual and medical system, research on oral health care of oral cancer patients and public relations campaign will have to be activated. Development of expert care manual analysis and evaluation tools for oral health care in oral cancer patients in the future and development of standardized curriculum will be necessary.

• 한국치위생학회지
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• 제21권6호
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• pp.793-803
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• 2021

Objectives: The purpose of this study was to investigate the current status of dental hygiene curricula related to clinical practice in Korea. Methods: Clinical work included the categories 'history taking, infection control, oral prophylaxis, preventive treatment, education/counseling, radiography/reading, assisting/cooperation, impression/bite registration, anesthesia, etc.', and 66 works were finally selected based on the frequent tasks of dental hygienists. The subjects were made to answer nine questionnaires. Results: It was found that the theory and practice of the main works operated quite differently in lectures and practice in each school. All types of practice were applied to all schools in the case of 'scaling'. The evaluation of clinical practice was also found to be very different from school to school. Conclusions: For dental hygienists to establish expertise in clinical practice and promote quality improvement, it is necessary to develop a core curriculum focusing on clinical practice. The standardized curriculum should be improved to an efficient and competency-centered one defining clearly the role of dental hygienists considering the needs and importance of clinical practice.

• 한국치위생학회지
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• 제20권2호
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• pp.139-153
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• 2020

Objectives: The purpose of this study was to define the concept of the community dental hygiene process of care and to develop competency-based learning goals applying the community dental hygiene process of care. Methods: Based on 12 references, the concept of community dental hygiene process of care was defined, and 393 learning objectives were derived to carry out the first and second categorization process. The 57 learning goals were classified according to the 15-week learning subject (once a week) for project learning. To evaluate the validity of the developed learning subjects and goals, 80 community dental hygiene professors were surveyed. The final learning subjects and goals were created by going through the process of collecting opinions from the 35 validity evaluation results received as responses, and opinions from 10 community dental hygiene professors. Results: The first and second validity surveys on the operational definition of community dental hygiene process of care showed 4.32 points and 4.60 points, respectively. As a result of the evaluation of the validity of the learning subjects and goals for 1~15 weeks, the average validity of the learning subjects was 4.44 points, and of learning goals was 4.32 points. Conclusions: The learning subjects and goals developed by applying the theoretical framework for community dental hygiene process of care defined in this study can be used as a learning guideline for learners to understand the theory of community dental hygiene area and to derive the standards of competence in the field of practice.

• 한국치위생학회지
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• 제19권3호
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• pp.331-342
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• 2019

The purpose of this study is to analyze the clinical dentistry curriculum in Korea and Japan in order to review the application of integrated curriculum in the field. We collected the clinical dentistry syllabi for 2015-16 of the department of dental hygiene of Korea G University and Japan N University. Using the data from Korea, items that were duplicated and integrated were classified by the subjects covered in clinical dentistry. In addition, through case studies conducted in Korea and Japan, we analyzed and compared the credits, class hours, teaching methods, and evaluation methods, by subject. In Korea the total class hours in clinical dentistry, including clinical practice, was 1,095, and in Japan it was 1,104. In Korea, the syllabus covered by each department consisted of about 200 hours centering on theoretical lectures. In Japan, the integrated form of clinical dentistry was taught, and the instructions included all the contents of clinical dental study and also problem-based learning for approximately 100 hours. To strengthen the competence of dental hygienists as professionals, who are actively involved in dental practice, it is necessary to integrate the education contents of segmented clinical dentistry from the perspective of dental hygiene. It is also important to apply teaching methods that can help students improve their ability to solve problems.

• 치위생과학회지
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• 제17권4호
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• pp.368-374
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• 2017

본 연구는 G대학교 지역사회치위생학 실습 수업을 수강한 치위생학과 4학년 학생 27명을 대상으로 구강건강증진사업을 학습 내용에 적용하기 위해 목표 집단에 대한 현황조사, 사업 기획, 수행, 평가, 중간 및 결과 발표로 구성된 프로젝트 기반의 수업을 진행하였다. 수업 전 후 문제해결능력에 대한 자신감, 프로젝트 가치, 팀워크 역량, 지역사회 치과위생사 역량에 대한 비교 결과, 문제해결능력에 대한 자신감은 수업 전 35.74점, 수업 후 39.59점(p=0.001), 프로젝트 가치는 수업 전 25.11점, 수업 후 26.41점(p=0.181), 팀워크 역량은 수업 전 79.63점, 수업 후 84.07점(p=0.070), 지역사회치과위생사 역량은 수업 전 38.26점에서 수업 후 46.26점(p=0.001)으로 향상되었다. 수업 후 프로젝트의 실제성, 학습성과, 만족도를 분석한 결과, 프로젝트 실제성은 19.30점, 학습성과는 45.19점, 만족도는 19.19점으로 보통 이상의 긍정적인 결과로 나타났다. 수업 효과성의 질적 평가를 위해 각 팀별 동료평가에서 최저점과 최고점을 받은 학생 2명씩 총 8명을 대상으로 1:1 면담조사를 실시하였으며, 피면접자 모두 학습자가 자율성을 갖고 주도적으로 프로젝트를 수행함으로써 지역사회 치과위생사의 역할에 대한 이해도와 추후 배운 기술의 적용가능성이 높은 것으로 나타났다. 또한 현 사회에서 요구하고 있는 문제에 대한 해결력 및 자신감, 협동심과 같은 팀 워크 역량, 역할에 대한 책임감, 창의적인 사고력, 의사사통 등의 사회적 기술을 배울 수 있는 것으로 나타났다. 프로젝트 기반의 지역사회치위생학 실습 교과목은 학습자들이 지역사회에서 적용할 수 있는 주제를 선정하여 프로젝트를 주도적으로 수행함으로써 현장과 밀접한 경험을 할 수 있기 때문에 실무적인 역량을 증진시키기 위해서는 프로젝트 학습법이 적합한 것으로 생각된다. 타 치위생(학)과에서도 지역사회치위생학 실습이 현장과 밀접한 교과목으로 운영될 수 있도록 프로젝트 기반의 체계적인 학습모듈이 개발될 필요가 있다고 생각된다.

• 대한소아치과학회지
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• 제46권3호
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• pp.247-254
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• 2019

이 연구는 성장기 아동의 방사선 사진을 이용하여 상악 견치의 치아 성숙도와 골격적 성숙도를 평가하고, 상악 견치의 치아 성숙도와 골격적 성숙도 사이의 연관성을 알아보고자 하였다. 치아 성숙도는 Demirjian index (DI)를 이용하였고, 골격적 성숙도는 cervical vertebral maturation stages (CVMS)와 skeletal maturity indicators (SMI)를 이용하여 각각 경추골 성숙도와 수완부골 성숙도를 평가하였다. 그 결과, 남녀 모두 상악 견치의 DI와 CVMS 및 SMI 사이에서 유의하게 높은 상관관계를 나타냈다(p = 0.000). 이 연구를 통하여 상악 견치를 이용한 치아 성숙도 평가는 성장기 아동의 골격적 성숙도를 평가하는 보조적 수단으로 사용될 수 있음을 확인하였다.

• Restorative Dentistry and Endodontics
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• 제47권2호
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• pp.19.1-19.15
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• 2022

Objectives: The aim of this study was to evaluate and compare the apical constriction (AC) and apical canal morphology of maxillary first and second molars, using micro-computed tomography (micro-CT). Materials and Methods: The anatomical features of 313 root canals from 41 maxillary first molars and 57 maxillary second molars of patients with known age and sex were evaluated using micro-CT, with a resolution of 26.7 ㎛. The factors evaluated were the presence or absence of AC, the morphotypes, bucco-lingual dimension, mesio-distal dimension, and the profile (shape) of AC and the apical root canal. The apical root canal dimensions, location of the apical foramen (AF), AC to AF distance, and presence of accessory canals in the apical 5 mm were also assessed. Descriptive and analytical statistics were used for data evaluation. Results: AC was present in all 313 root canals. Patients' age and sex did not significantly impact either AC or the apical canal dimensions. The most common AC morphotype detected was the traditional (single) constriction (52%), followed by the parallel (29%) morphotype. The mean AC dimensions in maxillary first molars were not significantly different from those in maxillary second molars. Sixty percent of AF were located within 0.5 mm from the anatomic apex. Conclusions: The most common morphotype of AC detected was the traditional constriction. Neither patients' age nor sex had a significant impact on the dimensions of the AC or the apical root canal. The majority of AF (60%) were located within 0.5 mm from the anatomic apex.

• Restorative Dentistry and Endodontics
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• 제39권3호
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• pp.195-200
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• 2014

Objectives: To comparatively evaluate the efficacy of photo-activated disinfection (PAD), calcium hydroxide (CH) and their combination on the treatment outcome of indirect pulp treatment (IPT). Materials and Methods: Institutional ethical clearance and informed consent of the patients were taken. The study was also registered with clinical registry of India. Sixty permanent molars exhibiting deep occlusal carious lesion in patients with the age range of 18 - 22 yr were included. Clinical and radiographic evaluation and set inclusion and exclusion criteria's were followed. Gross caries excavation was accomplished. In group I (n = 20) PAD was applied for sixty seconds. In group II (n = 20), CH was applied to the remaining carious dentin, while in group III (n = 20), PAD application was followed by CH placement. The teeth were permanently restored. They were clinically and radiographically followed-up at 45 day, 6 mon and 12 mon. Relative density of the remaining affected dentin was measured by 'Radiovisiography (RVG) densitometric' analysis. Results: Successful outcome with an increase in radiographic grey values were observed in all three groups. However, on inter-group comparison, this change was not significant (p > 0.05). Conclusions: PAD and CH both have equal disinfection efficacy in the treatment of deep carious dentin. PAD alone is as effective for treatment of deep carious lesion as calcium hydroxide and hence can be used as an alternative to CH. They can be used independently in IPT, since combining both does not offer any additional therapeutic benefits.