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하악 과두 골절의 관혈적 정복시 고정 방법에 따른 임상적 평가
손정희,박지화,김진수,변기정,Son, Jung-Hee,Park, Ji-Hwa,Kim, Chin-Soo,Byun, Ki-Jung 대한악안면성형재건외과학회 2005 Maxillofacial Plastic Reconstructive Surgery Vol.27 No.2
The purpose of this study was to compare a sample of patients who had condylar fractures treated with open reduction using different plating techniques, to evaluate which plating technique is useful for stable fixation for fractures of the mandibular condyle and to evaluate effectiveness of resorbable miniplate. There were 60 patients (41 males, 19 females) whose condylar fractures were treated with open reduction. Rigid fixation was performed with a single miniplate, double miniplate ot one miniplate & one microplate and single resorbable plate. All patients remained intermaxillary fixation for 1 week postoperatively. Active physiotherapy was started after 2 weeks postoperatively. Radiographic evaluation (plate fracture, plate bending, screw loosening, displacement of condyle etc.) was performed at pre-operative, immediate, 2 weeks, 1 month, 3 months, 6 months after surgery. Clinical evaluation included degree of mouth opening, occlusion, mandibular lateral excursion, infection and facial nerve paralysis. In radiographic evaluation, displacement of fractured condylar segment associated with plate bending or screw loosening were showed 6 cases and 3 cases for single miniplate system and resorbable miniplate system. There was no patients who have this problem on double miniplate system. The results revealed that the application of two miniplates were more recommendable than single miniplates. When we select resorbable miniplate system, we should consider the type of fractures, post-operative treatment protocol and surgical technique.
비디오 자기모델링을 활용한 자기관리전략이 초등 특수학급 학생의 문제행동과 수업참여행동에 미치는 영향
손정희 ( Son Jung Hee ),허유성 ( Heo Yu Sung ) 대구대학교 특수교육재활과학연구소 2014 특수교육재활과학연구 Vol.53 No.3
본 연구는 초등 특수학급에 배치된 3명의 장애학생을 대상으로 비디오 자기모델링을 활용한 자기관리전략을 수행하여 수업 중 문제행동과 수업참여행동에 미치는 영향을 분석하였다. 본 연구는 대상자간 중다 간헐기초선 설계를 사용하여 각 학생별로 기초선, 중재, 유지의 세단계로 문제행동과 수업참여행동의 변화를 분석하였다. 참여 학생들은 중재 기간 동안 매일 수업시작 전에 자신들의 바람직한 수업참여행동 모습을 편집한 비디오 자료를 시청했다. 동시에 참여 학생들은 수업이 끝난 뒤 자신의 행동을 자기점검기록표에 체크하고 얻은 점수를 그래프로 그려 자기평가를 실시했다. 연구 결과에 따르면, 비디오 자기모델링을 활용한 자기관리전략 적용 이후 장애학생의 문제행동은 감소되었고, 수업참여행동은 증가하였다. 중재효과는 중재 2주 후에도 유지되었다. This study examined the effects of video self-modeling (VSM) intervention combining self-management strategies on challenging behaviors and class participations of 3 students with disabilities placed at a general elementary special class. This study applied multiple baseline design across subjects. Each student watched VSM showing their appropriate class participation behaviors before class beginning. Simultaneously, each student conducted self-assessment about their behaviors with graphs after classes. According to the results, VSM combining self-management strategies was effective in increasing class participation behaviors and reducing challenging behaviors of students with disabilities. Furthermore, the intervention effects were maintained until 2 weeks after intervention.
공초점레이저주사현미경을 이용한 레진침윤법 적용우치법랑질의 잇솔질 마모저항성 평가
손정희 ( Jung Hui Son ),임도선 ( Do Seon Lim ),마득상 ( Deuk Sang Ma ),박덕영 ( Deok Young Park ) 대한예방치과·구강보건학회 2013 大韓口腔保健學會誌 Vol.37 No.1
Objectives: The purpose of this study was to evaluate abrasion of Icon® infiltrated, sound bovine enamel by using confocal laser scanning microscopy (CLSM) after toothbrush abrasion tests. Methods: Sound bovine enamel specimens whose Vickers Hardness Number ranged from 280 to 320 were prepared. To measure abrasion, specimens were allocated to groups on the basis of tooth brushing stroke frequencies. Tooth brushing stroke frequencies were categorized into 5 groups: 1,800, 5,400, 10,800, 21,600 and 43,200 strokes. Both infiltration depth of Icon® and the abrasion depth were measured by CLSM. Results: Mean infiltration depth of Icon® for sound bovine enamel was 98.6 μm. There was no statistically significant difference in enamel abrasion depth between groups with 5,400 strokes and 10,800 strokes, but the abrasion depth increased with further increase in tooth brushing stroke frequencies ( P<0.001). The mean abrasion depth of resin infiltrated bovine enamel after 43,200 tooth brushing strokes was 17.45 μm. Conclusions: The magnitude of abrasion after 43,200 tooth brushing strokes, which corresponds to brushing 3 times a day for 4 years, was less than 20 μm. This result suggests that abrasion by tooth brushing would not be a clinical problem for resin infiltrated enamel.
세치제 구경크기와 짜는 방법에 따른 만 3∼5세 아동의 일회 세치제 사용량 조사
손정희 ( Jung Hui Son ),마득상 ( Deuk Sang Ma ) 대한예방치과·구강보건학회 2010 大韓口腔保健學會誌 Vol.34 No.2
Objectives. The purpose of this study was to assess and compare the amount of toothpaste used by varying opening diameter and squeezing methods in children aged 3∼5 to prevent the excessive use of fluoride toothpaste. Methods. The amount of toothpaste per brushing was measured from a sample of 176 infants aged 3∼5 in 6 nurseries located in Jecheon City, Chungbuk Province, Korea. We tested two squeezing methods, pea-size and transverse technique, and two openings, 0.6 cm and 0.9 cm. We compared the amount of toothpaste used relative to opening diameter and squeezing methods through paired t-test using SPSS 14.0. Results. For 0.6 cm or 0.9 cm diameters with the pea-size method, the amount of toothpaste used was 0.22 g or 0.51 g, respectively (p<0.001). For 0.6 cm or 0.9 cm diameters and the transverse technique, the amount of toothpaste used was 0.20 g or 0.46 g, respectively (p<0.001). In case of 0.9 cm diameter, the amount of toothpaste showed significant difference according to squeezing methods (0.9 cm: p=0.045, 0.6 cm: p=0.121). Conclusions. Smaller openings restrict the amount of toothpaste used and would reduce unnecessary fluoride ingestion.