• 대한장애인치과학회지
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• 제13권1호
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• pp.14-18
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• 2017

본 증례에서는 본과에서 발견한 임상적인 특징을 통해 X 염색체 우성 저인산혈증성 구루병으로 진단받아 13년간 의과적 및 치과적인 처치를 받고 있는 환아에 대해 보고하였다. 의과적으로 환아는 저신장 및 휜 다리 등의 전형적인 구루병 증상을 나타내었고, 치과적으로도 넓은 치수강, 상아법랑경계까지 연장된 치수각 및 자발적 치아농양 등의 전형적인 증상을 나타내었다. 본 환아는 정기적인 검진을 통해 유구치와 영구 소구치 및 대구치 모두 치면열구전색 및 수복치료 등을 적극적으로 시행해왔다. 그러나 예방적인 처치에도 불구하고 유치열에서는 총 8개의 치아에서 치아 우식에 이환 없이 자발적 치아농양이 발생하여 치수절제술을 시행하였으며, 조기 상실 등의 합병증 없이 영구치교환 시점까지 유지할 수 있었다. 영구치열에서는 그 빈도가 낮아졌으나 하악 우측 제1, 2대구치에서 발생한 자발적 치아농양으로 치료를 완료하였다. 앞으로 치아교모 등의 원인으로 영구치에서 발생할 수 있는 치아농양을 예방하기 위해 예방적인 전장관수복치료가 필요하리라 생각된다.

• Restorative Dentistry and Endodontics
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• 제42권2호
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• pp.146-151
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• 2017

X-linked hypophosphatemia (XLH) is a hereditary metabolic disease caused by the loss of phosphate through the renal tubules into the urine, and an associated decrease in serum calcium and potassium phosphate. Its dental features include spontaneous dental abscesses that occur in the absence of trauma or dental caries. The aim of this case report was to describe the dental problems of XLH patients and to evaluate limitations in their treatment. A 14 year old male and a 38 year old female with XLH were referred to the Department of Conservative Dentistry for endodontic treatment. The dental findings were periapical abscesses without obvious trauma or caries. Conservative endodontic treatment was performed in teeth with pulp necrosis and abscess. In case 1, the treated teeth showed improvements in bone healing, without clinical symptoms. However, in case 2, the implants and the treated tooth showed hypermobility, and the final restoration was therefore postponed. Early diagnosis, periodic examinations, and communication with the patient's pediatrician are important in the dental management of patients with XLH.

• 대한치과마취과학회지
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• 제13권4호
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• pp.215-220
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• 2013

The co-occurrence of congenital central hypoventilation syndrome (CCHS) and Hirschsprung's disease (HD) is termed Haddad syndrome, which is an extremely rare discorder. It was reported first by Haddad in 1978 and there are approximately 60 cases reported in the worldwide literature. Recent studies described that congenital central hypoventilation syndrome had deep relation to the mutation of the PHOX2B gene in its diagnosis and phenotype. This article presents a case report: Dental treatment of a 3-year-old male patient with Haddad syndrome under outpatient general anesthesia. The special considerations of dental care, especially caries theatment of the patient with Haddad syndrome are discussed.

• 대한소아치과학회지
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• 제48권2호
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• pp.176-183
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• 2021

이 연구는 소아 환자에서 생활치수치료를 시행한 미성숙 제1대구치의 술전 요인들을 분석하고 생활치수치료와의 상관관계를 알아보고자 하였다. 2014년 5월부터 2020년 1월까지 치료가 시행된 523명, 1,242개의 미성숙 제1대구치에 대해 조사하였다. 생활치수치료 후 수복치료를 받은 미성숙 제1대구치를 실험군으로, 생활치수치료 없이 수복치료만 받은 미성숙 제1대구치를 대조군으로 설정하였다. 연령, 성별, 치아의 위치, Molar-incisor hypomineralization (MIH), 우식 와동 위치 및 과거 수복치료 병력에 대해 조사하였다. 생활치수치료군은 대조군에 비하여 MIH가 5.56배, 근심 와동이 3.39배, 원심 와동이 8.73배 더 많은 것으로 나타났다. 미성숙 영구치의 생활치수치료를 예방하기 위해 제1대구치가 맹출된 후 MIH의 조기 진단 및 적극적인 관리와 근, 원심면 우식에 대한 예방적 처치가 필요할 것으로 사료된다.

• Imaging Science in Dentistry
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• 제53권3호
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• pp.199-207
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• 2023

Purpose: The objective of this study was to evaluate the accuracy and effectiveness of an artificial intelligence (AI) program in identifying dental conditions using panoramic radiographs(PRs), as well as to assess the appropriateness of its treatment recommendations. Materials and Methods: PRs from 100 patients(representing 4497 teeth) with known clinical examination findings were randomly selected from a university database. Three dentomaxillofacial radiologists and the Diagnocat AI software evaluated these PRs. The evaluations were focused on various dental conditions and treatments, including canal filling, caries, cast post and core, dental calculus, fillings, furcation lesions, implants, lack of interproximal tooth contact, open margins, overhangs, periapical lesions, periodontal bone loss, short fillings, voids in root fillings, overfillings, pontics, root fragments, impacted teeth, artificial crowns, missing teeth, and healthy teeth. Results: The AI demonstrated almost perfect agreement (exceeding 0.81) in most of the assessments when compared to the ground truth. The sensitivity was very high (above 0.8) for the evaluation of healthy teeth, artificial crowns, dental calculus, missing teeth, fillings, lack of interproximal contact, periodontal bone loss, and implants. However, the sensitivity was low for the assessment of caries, periapical lesions, pontic voids in the root canal, and overhangs. Conclusion: Despite the limitations of this study, the synthesized data suggest that AI-based decision support systems can serve as a valuable tool in detecting dental conditions, when used with PR for clinical dental applications.

• 대한소아치과학회지
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• 제41권2호
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• pp.145-151
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• 2014

본 연구의 목적은 전신질환으로 입원한 환자의 소아치과 협진 의뢰 현황에 대한 통계분석을 실시하여 소아치과로 의뢰되는 전신질환 환자 실태를 파악하는 것이다. 2012년 한 해 동안 연세대학교 세브란스 병원에 전신질환으로 입원한 소아환자 중 소아치과에 의뢰되어 실제 진료를 받았으며 그 기록이 온전한 391건을 대상으로 하였다. 환자의 나이, 성별, 전신질환명, 협진의뢰과, 협진주소, 치과적 진단명, 치과적 치료 내용, 사망여부로 분류하여 통계 분석하였으며 환자 정보의 수집은 연세의료원의 Clinical Data Retrieval System을 이용하였다. 총 288명의 환자(M:F=166:122)가 소아치과로 의뢰되었으며 평균 연령은 5.9세였다. 재활의학과에서 129건(33.1%), 소아혈액종양내과에서 80건(20.5%), 소아심장과에서 51건(13.0%), 소아신경과에서 44건(11.3%)이 의뢰되었다. 협진주소는 기본 구강검진(156cases, 39.7%), 치아우식증(55cases, 14.0%), 수술 전 검진(50cases, 12.8%)순으로 많았으며 이 외에도 구강통증, 외상, 치아동요도, 교정치료, 자해로 인한 외상, obturator 제작 등 다양한 주소로 의뢰되었음이 확인되었다. 협진 의뢰된 환자의 절반 가량은 특별한 치료 없이 구강검사만을 시행하였으며(193건, 49%), 보존치료 및 예방치료는 각각 63건, 60건으로 비슷한 것으로 나타났다. 전신질환으로 입원한 환자의 소아치과 의뢰 현황을 분석한 결과 구강검진을 포함한 다양한 주소로 의뢰됨이 확인되었으며 재활의학과 및 소아혈액종양내과에서 가장 많은 의뢰가 이루어졌다. 의뢰된 환자의 치과적 진단명은 치아우식증이 가장 많았고 이에 대한 비침습적이고 예방적 치과치료가 주로 이루어졌다. 입원환자의 전신건강관리와도 밀접한 구강질환 예방 및 처치를 위하여 치과협진이 독려되어야 할 것이며 이를 위한 의사 및 보호자의 인식 개선이 요구된다.

• Journal of Oral Medicine and Pain
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• 제18권1호
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• pp.97-105
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• 1993

In order to evaluate the effectiveness of tooth brushing, mouth gargling and gum chewing in reducing halitosis, 84 individuals ranging in age from 22 59 28 years old were examined. These individuals had no gross oral abnormalities, other than mild gingival inflammation, dental caries, nasopharyngeal disorder, or systemic diseases that were associated with halitosis. They were divided into a tooth brushing group, a mouth garging group, a gum chewing group and a control group that did not use any halitosis removing method. Each of the groups included 21 persons, B.B. Checker (Tokuyama Soda Col, LTDl, Japan) was used to measure the concentrations of intraoral volatile methyl mercaptan of each group. The concentrations of intraoral volatile methyl mercaptan were measured before and after lunch, and after removing halitosis by toothe brushing, mouth gargling and gum chewing. The obtained results were as follows : 1. The average concentration of intraoral volatile methyl mercaptan before lunch was 1.79ppm and after lunch it was 2.02ppm, an increase of 12.9%. 2. In the tooth brushing group the average concentration of intraoral volatile methyl mercaptan was 0.61ppm, in the mouth gargling group it was 1.15ppm, in the gum chewing group it was 1.64ppm and in the control group it was 1.92ppm. It decreased 69.5% in the tooth brushing group, 43.8% in the mouth gargling group, 18.4% in the gum chewing group and 5.4% in the control grop (p<0.05). 3. There were significant differences between the tooth brushing and control group, tooth brushing and gum chewing group and between mouth gargling and control group in concentrations of intraoral volatile methyl mercaptan after using the halitosis removing methods (p<0.05). According to the above results, tooth brushig and mouth gargling are effective ways to reduce halitosis.

• 치과방사선
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• 제29권2호
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• pp.387-396
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• 1999

In dentistry. RadioVisioGraphy was introduced as a first electronic dental x-ray imaging modality in 1989. Thereafter. many types of direct digital radiographic system have been produced in the last decade. They are based either on charge-coupled device(CCD) or on storage phosphor technology. In addition. new types of digital radiographic system using amorphous selenium. image intensifier etc. are under development. Advantages of digital radiographic system are elimination of chemical processing, reduction in radiation dose. image processing, computer storage. electronic transfer of images and so on. Image processing includes image enhancement. image reconstruction. digital subtraction, etc. Especially digital subtraction and reconstruction can be applied in many aspects of clinical practice and research. Electronic transfer of images enables filmless dental hospital and teleradiology/teledentistry system. Since the first image management and communications system(IMACS) for dentomaxillofacial radiology was reported in 1992. IMACS in dental hospital has been increasing. Meanwhile. researches about computer-assisted diagnosis, such as structural analysis of bone trabecular patterns of mandible. feature extraction, automated identification of normal landmarks on cephalometric radiograph and automated image analysis for caries or periodontitis. have been performed actively in the last decade. Further developments in digital radiographic imaging modalities. image transmission system. imaging processing and automated analysis software will change the traditional clinical dental practice in the 21st century.

• 치과방사선
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• 제29권2호
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• pp.507-521
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• 1999

Osteopetrosis is an uncommon hereditary bone disorder whose prominent radiologic feature characterized by increased bone density. The authors reported a 7-year-old male patient who referred from local dental clinic for dental problems such as early exfoliation of deciduous teeth(#54,73,83) and delayed eruption of permanent teeth(#31.41.36.46). The patient appeared as a poorly developed. Dental X-ray films showed early exfoliation of deciduous teeth, delayed eruption of permanent teeth, and rampant caries. Lateral view of skull demonstrated increased opacity of calvarium, facial bones, and skull base. Generally the skeletal density is greatly increased throughout all bones. Facial CT showed poor development of paranasal sinuses and mastoid air cells. No hematopoietic and neurologic complications such as anemia, thrombocytopenia, blindness and deafness were found. Also mental retardation was not found. The final diagnosis of this case was a osteopetrosis tarda. Sometimes patient with osteopetrosis tarda may be developed dental problems prior to severe systemic symptoms. The dentist can be the first clinician to see the patient. It is very important for the dentist to have the knowledge of the osteopetrosis and to care the patient's dental problems to prevent complication such as osteomyelitis of jaws.

• Restorative Dentistry and Endodontics
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• 제21권1호
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• pp.353-359
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• 1996

The purpose of this study was to investigate the concentrations of Leukotriene B4 in relation to the clinical symptom of pulpitis in human dental pulp. Pulps obtained from 3 groups of teeth: normal uniflamed teeth(N=22), asymptomatic teeth with deep caries or large restorations(N = 21) and symptomatic teeth with the clinical diagnosis of irreversible pulpitis(N = 15). Pulps were dissected from normal un inflamed teeth and extirpated from asymptomatic and symptomatic teeth during routine endodontic treatment and stored in liquid nitrogen ($-70^{\circ}C$). The levels of Leukotriene B4 in individual or pooled pulps were measured by radioimmunoassay and the mean levels of each group were compared statistically(Kruskall-Wallis oneway ANOVA test). The results were as followings : 1. In normal pulp, low levels of Leukotriene B4 were measured. 2. In pulps from asymptomatic and symptomatic teeth had significantly higher levels of Leukotriene B4 than normal pulps(p<0.01). 3. The levels of Leukotriene B4 in pulps from symptomatic teeth were significantly higher than those of pulps from asymptomatic teeth(p<0.01). These results suggest that Leukotriene B4 play a cretain role in inflammatory process of dental pulp and have a relationship with clinical symptoms of pulpitis.