• 대한소아치과학회지
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• 제47권3호
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• pp.293-302
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• 2020

이 연구의 목적은 가상현실 시뮬레이션을 이용한 소아환자 치아우식 진단 경험에 대한 설문조사를 통하여, 임상 실습 전 단계의 치의학 전공 학생들을 대상으로 소아치과적 교육에서의 활용 가능성을 평가하는 것이다. 소아 환자 모델로 유치열기의 5세 여아를 개발하였고, 가상현실 속 진단을 위한 치아 우식 모델을 제작하였다. 치의학 전공 학생들은 15분에 걸친 치아 우식 진단 시뮬레이션을 경험한 뒤, 설문지를 통하여 프로그램 사용 경험을 통한 실재감 및 응용 가능성을 평가하였다. 그 결과, 가상실재감과 외양 평가에서 높은 점수를 얻었다. 또한, 가상현실을 통한 치아 우식 진단 시뮬레이션은 임상 실습 전, 후의 학년, 성별, 가상현실 체험 경험의 유무에 따른 유의미한 차이가 없다는 설문 결과를 얻었다. 이 프로그램을 지속적으로 발전시킨다면, 치의학 교육 분야에 응용 가능성이 높아질 것이다.

• 대한장애인치과학회지
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• 제15권1호
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• pp.89-93
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• 2019

본 증례 보고는 기관 삽관 경험이 있는 조산아에서 상악 유전치의 발육장애가 나타난 증례이다. 본 증례들에서는 기관 삽관으로 인해 치관 형태 이상, 법랑질 결함, 맹출 지연이 나타났다. 또한 치배의 변위로 인한 맹출 경로 이상, 치근 만곡, 후속 영구치의 비정상적인 치근 형성도 나타났다. 이환 치아에 대해서는 예방적 수복치료 및 관리, 적절한 시기에 발치를 고려해야 한다. 소아치과의사는 삽관 경험이 있는 조산아에서 나타날 수 있는 상황에 대해 이해하고, 적절한 개입을 통해 구강 건강 증진을 도모해야 한다.

• 대한치과의사협회지
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• 제57권10호
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• pp.588-594
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• 2019

The fusion is an anomalous union of two or more tooth germ at some stage in the development process resulting in a decreased number of teeth in the dental arch. Fusion is common odontogenic anomaly but triplication of primary teeth is a rare phenomenon. We report a case of a 3 - year - old girl who visited our clinic for the pain on maxillary anterior tooth. The patient was diagnosed by the fusion of a the maxillary primary right central and lateral incisor with a supernumerary tooth and caries of dentine. And then, Endodontic treatment and composite resin restoration were performed on the triple teeth. After follow-up of 6 months period, there was no marked complications.

• 대한소아치과학회지
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• 제34권4호
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• pp.646-650
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• 2007

2003년 4월부터 2006년 4월까지 안양 지역에 위치한 개인 소아치과 병원에 내원한 환아 7038명을 대상으로 임상적, 방사선학적 검사를 통해 성별, 상악 정중과잉치의 수, 치관의 형태와 위치, 치관 방향을 조사하여 다음과 같은 결론을 얻었다. 1. 과잉치를 가진 환아는 239명으로 3.40%(총 241명, 3.42%)에 해당하였고 총 289개의 과잉치가 있었다. 2. 과잉치는 1개 있는 경우가 191명으로 가장 많았고, 2개 있는 경우도 48명 있었으며, 3개 이상 있는 경우는 없었다. 3. 상악 정중과잉치는 3.2:1로 여아보다 남아에서 호발하였다. 4. 과잉치는 왼쪽에 있는 경우가 55.4%로 약간 더 많았고, 모양은 원추형, 방향은 역위형이 가장 많았다. 5. 하악 정중과잉치는 2명에서 관찰되었다.

• 대한소아치과학회지
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• 제49권2호
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• pp.228-233
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• 2022

동정맥 기형(Arteriovenous malformations, AVMs)은 동맥과 정맥이 직접적으로 연결되어 모세혈관과 연결되지 않은 희귀한 선천성 기형 중 하나이다. AVM은 유아기 후반이나 소아기까지는 임상적으로 나타나지 않을 수 있다. 특히 안면 AVM은 생명을 위협하는 치과적 응급 상황을 일으킬 수 있다. 전신병력이 없는 만 5세 여아가 하악 좌측 제2유구치의 후방 치은 주위의 자발적인 잇몸 출혈로 내원하였다. 감별진단 및 치료를 위해 전신마취 하에 대퇴정맥 접근을 통한 혈관조영술이 시행되었다. 동맥색전술 만으로도 혈류량이 효과적으로 감소되었다. 5개월 동안의 경과관찰에서 재발되지 않았다. 본 연구는 성장기 환자에서 이환된 혈관의 색전술이 외과적 절제술보다 더 효과적이고 안전한 방법이 될 수 있다고 보고하는 바이다.

• 대한치과교정학회지
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• 제47권6호
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• pp.401-413
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• 2017

Objective: The aim of this systematic review was to assess the occlusal outcome and duration of fixed orthodontic therapy from clinical trials in humans with the Objective Grading System (OGS) proposed by the American Board of Orthodontics. Methods: Nine databases were searched up to October 2016 for prospective/retrospective clinical trials assessing the outcomes of orthodontic therapy with fixed appliances. After duplicate study selection, data extraction, and risk of bias assessment according to the Cochrane guidelines, random-effects meta-analyses of the mean OGS score and treatment duration were performed and 95% confidence intervals (CIs) were calculated. Results: A total of 34 relevant clinical trials including 6,207 patients (40% male, 60% female; average age, 18.4 years) were identified. The average OGS score after treatment was 27.9 points (95% CI, 25.3-30.6 points), while the average treatment duration was 24.9 months (95% CI, 24.6-25.1 months). There was no significant association between occlusal outcome and treatment duration, while considerable heterogeneity was identified. In addition, orthodontic treatment involving extraction of four premolars appeared to have an important effect on both outcomes and duration of treatment. Finally, only 10 (39%) of the identified studies matched compared groups by initial malocclusion severity, although meta-epidemiological evidence suggested that matching may have significantly influenced their results. Conclusions: The findings from this systematic review suggest that the occlusal outcomes of fixed appliance treatment vary considerably, with no significant association between treatment outcomes and duration. Prospective matched clinical studies that use the OGS tool are needed to compare the effectiveness of orthodontic appliances.

• 대한치과교정학회지
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• 제53권3호
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• pp.185-193
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• 2023

Objective: The growth and development of the mandible strongly depend on modeling changes occurring at its ramus. Here, we investigated covariance patterns between the morphology of the ramus and the rest of the face. Methods: Lateral cephalograms of 159 adults (55 males and 104 females) with no history of orthodontic treatment were collected. Geometric morphometrics with sliding semi-landmarks was used. The covariance between the ramus and face was investigated using a two-block partial least squares analysis (PLS). Sexual dimorphism and allometry were also assessed. Results: Differences in the divergence of the face and anteroposterior relationship of the jaws accounted for 24.1% and 21.6% of shape variation in the sample, respectively. Shape variation was greater in the sagittal plane for males than for females (30.7% vs. 17.4%), whereas variation in the vertical plane was similar for both sexes (23.7% for males and 25.4% for females). Size-related allometric differences between the sexes accounted for the shape variation to a maximum of 6% regarding the face. Regarding the covariation between the shapes of the ramus and the rest of the face, wider and shorter rami were associated with a decreased lower anterior facial height as well as a prognathic mandible and maxilla (PLS 1, 45.5% of the covariance). Additionally, a more posteriorly inclined ramus in the lower region was correlated with a Class II pattern and flat mandibular plane. Conclusions: The width, height, and inclination of the ramus were correlated with facial shape changes in the vertical and sagittal planes.

• 대한치과의사협회지
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• 제57권8호
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• pp.474-479
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• 2019

The purpose of the pulp treatment is to make the function of the primary molar in the oral cavity possible for as long as possible until the exfoliation of the tooth or the development of the occlusion is as long as possible. The pulpectomy is a relatively common procedure for the pediatric dentist in the clinic with dental care of the children nowadays. Primary molar is morphologically more susceptible to dental caries than permanent tooth, and the dental pulp treatment is frequently performed. Furthermore, unlike permanent teeth, the root canal has a large degree of curvature and morphological diversity and complexity, careful consideration is needed. Therefore, it is very important to comprehensively understand the morphological characteristics and diversity of the root and root canals for the successful pulp treatment of the primary molars.

• Journal of Korean Dental Science
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• 제15권2호
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• pp.172-180
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• 2022

Ameloblastic fibro-odontoma (AFO) is a rare odontogenic tumor, which occurs in young children before the age of 20 years. Radiologically, it is a well-defined radiolucent lesion containing radiopaque masses. Histopathologically, AFO is composed of odontogenic epithelium in a primitive-appearing connective tissue and hard tissue consisting of enamel and dentin. It is commonly found in the mandibular posterior region. AFO may be asymptomatic and is often associated with delayed tooth eruption. As it shows similar characteristics clinically and radiologically to odontoma, differential diagnosis through histopathological examination is important. Treatment of AFO is conservative enucleation, and teeth enclosed or associated with the lesion may require extraction. In this report, 2 young patients who visited our clinic with a chief complaint of delayed eruption were diagnosed as AFO with radiological and histopathological examination. After the surgery, the healing status was found to be favorable, and no evidence of recurrence was observed.

• 대한치과마취과학회지
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• 제11권1호
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• pp.51-54
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• 2011

Wolff-Hirschorn syndrome is a condition that is caused by a deletion of genetic material near the end of the short (p) arm of chromosome 4. The major features of this disorder include a characteristic facial appearance, delayed growth and development, intellectual disability, and seizures. A 9-year-old girl was brought to the clinic with a chief complaint of dental examination. The child was diagnosed as WHS at Samsung medical center. The child was under Sodium valproate, Atrovastatin medication for epilepsy, hyperlipidemia and had a history of heart surgery. So prophylactic antibiotics were recommended. The child was mentally retarded and had seizure so it was difficult to manage her behavior effectively. Thus dental treatment was carried out under general anesthesia. For prompt sedation induction we used 8% sevoflurane shortly. This report presents the case of a 9-year-old girl with WHS, who has received treatment for extensive caries under general anesthesia.