• 대한장애인치과학회지
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• 제12권1호
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• pp.6-10
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• 2016

저자는 선천적 식도폐쇄로 인한 섭식장애를 가진 5세 환아에 대한 임상적 및 방사선학적 관찰을 통해 다음과 같은 지견을 얻었다. 1. 환아는 식도-기관 누공을 동반하는 선천성 식도폐쇄로 인해 위절제술 및 식도 문합술을 시행받았다. 2. 환아는 잦은 음식 섭취와 구토로 치아부식과 함께 다발성 치아우식증 소견을 보이고 있다. 3. 환아의 구강 위생 관리 및 우식 예방을 위해 정기적인 치과 내원과 가정에서 체계적인 관리가 필요하며, 식이와 관련된 재활 치료가 필요하다.

• 대한장애인치과학회지
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• 제7권1호
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• pp.33-37
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• 2011

제1대구치의 이소맹출은 국소적 원인과 유전적 원인의 조합에 의한 다양한 요소에 의해서 유발된다. 주기적인 검진과 방사선학적 검사를 통해 비가역적 이소맹출로 판단 될 경우, 제2유구치 조기 상실에 의해 제1대구치의 근심경사나 회전 및 복잡한 교정적인 문제를 일으킬 수 있으므로 적절한 개입이 필요하다. 본 증례는 항암치료의 기왕력이 있는 만성 골수성 백혈병 환아에서 나타난 제1대구치의 이소맹출을 Halterman appliance를 이용하여 정상적인 맹출로 유도할 수 있었다.

• Journal of Periodontal and Implant Science
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• 제47권6호
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• pp.352-362
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• 2017

Purpose: Furcation involvement in the molars is difficult to treat, and has been recognized as a risk factor for tooth loss. Although periodontal regenerative therapies, including guided tissue regeneration and various types of bone grafts, have been applied to furcation defects, the effects of these treatments are limited, especially in large class III furcation defects. The purpose of this pilot study was to investigate the effect of reciprocal autologous root transplantation on periodontal wound healing and regeneration in class III furcation defects in dogs. Methods: Furcation defects (7 mm wide and 6 mm high) were surgically created after root separation of the unilateral third and fourth premolars in 4 dogs. Eight furcation defects were randomized to receive either reciprocal autologous root transplantation (test) or no further treatment (control). In the test group, the mesial and distal roots were transplanted into the distal and mesial extraction sockets, respectively. The animals were sacrificed 10 weeks after surgery for histologic evaluation. Results: The healing pattern in the control group was characterized by extensive collapse of the flap and limited periodontal regeneration. New bone formation in the test group ($3.56{\pm}0.57mm$) was significantly greater than in the control group ($0.62{\pm}0.21mm$). Dense collagen fibers inserting into the residual cementum on the transplanted root surfaces were observed in the test group. Slight ankylosis was observed in 2 of the 4 specimens in the test group on the mesiodistal sides where the root-planed surfaces faced the existing bone. Root resorption (RR) was detected in both the control and test groups. Conclusions: Within the limits of this study, it can be concluded that reciprocal autologous root transplantation was effective for bone regeneration in class III furcation defects in dogs. However, further studies are required to standardize the approach in order to prevent unwanted RR prior to clinical application.

• 대한소아치과학회지
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• 제27권2호
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• pp.344-350
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• 2000

외상으로 인하여 치아가 받는 여러 가지 손상형태 중 치관-치근파절이 나타나는 빈도는 영구치에서 5%, 유치열에서는 2%라고 알려져 왔다. 치조정 하방에 파절선이 존재하고 치수노출을 동반한 치관-치근 파절에서는 크게 두가지의 보존적인 치료방법이 있다. 첫째, 교정력에 의해 정출시키는 방법과 둘째 치조와내에서 교합면 방향으로 재위치시키는 Intra-alveolar transplantation 등이 있다. 외과적 정출법은 1970년대에 소개된 이래로 교정적 정출법의 대안으로 많이 시행되고 있으며 높은 성공률을 가진 술식으로 여겨지고 있다. 본 증례는 외상으로 인해 상악 우측 중철치의 치수노출을 동반한 치관-치근 파절이 발생한 경우로 외과적 정출을 시행하기로 하였으나, 치근단 파절편의 길이가 짧아서 치아를 발거 후 회전시켜 재식하는 방법만으로는 파절선을 치조정 상방으로 위치시킬 수가 없었다. 따라서 치아를 발거한 후 파절편의 지지를 위해 치조와의 치근단부에 탈회냉동건조골을 이식한 후에 치근단 파절편을 노출한 후 suture splint를 시행하였다. 1년 3개월간의 관찰결과, 치조백선이 회복되고 정상적인 동요도를 보였으며, 염증성, 대체성 치근흡수 등과 같은 합병증은 발생되지 않았다.

• 대한소아치과학회지
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• 제36권4호
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• pp.556-562
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• 2009

이소맹출은 유전적 요인 혹은 여러 가지 국소적 요인에 의해 치아가 비정상적인 위치로 맹출하는 경우를 말한다. 이소맹출이 가장 빈번히 발생하는 치아는 상악 제1대구치로 이를 방치할 경우 인접치의 치근흡수 및 이에 따른 조기탈락으로 영구치 맹출공간 부족을 야기하며, 결과적으로 부정교합을 유발하는 중요한 요인으로 작용한다. 그러나, 치료에 앞서 이소맹출중인 치아가 자발적으로 맹출하기를 기다려볼 것인지 혹은 조기에 치료를 하여 제2유구치의 치근흡수나 탈락을 예방해야 할 것인지에 대한 결정이 선행되어야 한다. 현재 이를 위한 몇몇 진단학적 기준이 제시되고 있으나 학자간 이견이 존재한다. 본 연구에서는 방사선학적 검사를 통해 상악 제1대구치의 이소맹출이 조기 발견된 증례들 중 전방에 위치한 제2유구치의 치근이 흡수되어 비가역적 특징을 보인다고 판단되는 증례에 대해 특별한 처치 없이 주기적인 검진을 통해 자발적으로 해소된 결과를 관찰하였다. 이와 함께 상악 제2유구치 치근흡수의 정도와 상악 제1대구치의 맹출 기울기에 따른 후향적 분석을 통해 상악 제1대구치 이소맹출의 유형을 예측하고자 하였다. 상악 제2유구치의 치근 흡수 정도에 따라 grade I에서 IV로 분류하였고, 파노라마 방사선 사진 상에서 양측 안와의 최하방점을 연결한 수평선과 상악 제1대구치의 근심면을 따라 연결한 수직선을 기준으로 하여 근심각(mesial angle)을 측정하였다. 결과적으로는 상악 제2유구치의 치근 흡수 정도보다 상악 제1대구치의 맹출 기울기가 이소맹출의 유형을 진단하는 데에 있어 더 신뢰할만한 기준이라고 판단할 수 있었다.

• Journal of Periodontal and Implant Science
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• 제32권3호
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• pp.643-653
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• 2002

Periodontal supporting tissue goes through destruction by chronic inflammatory periodontal disease as two aspect. One is qualitive aspect such as alteration of periodontium, the other is quantitative aspect such as alveolar bone loss. According to many authors, PDL is responsible for biting force, and there are two mean. for measuring PDL's function - mobility test and biting force test. This study was conducted to compare the biting force with remaining bone level, that is, quantitative aspect of periodontium, in anterior and premolar teeth at periodontal maintenance phase. 17 patients on periodontal maintenance phase during 6 months at minimum were selected for this study. For the same condition, 4 anterior, canine, premolar teeth were tested by MPM-3000 bite-force register at the same time(a.m.l0-12), the same position, the same posture, by the same examiner. Patients of TMI), ill-fitting pros thesis, general disease, malocclusion and the teeth of TFO, absence of opposing teeth, malposition were excluded. Remaining bone level was measured on the panorama X-ray film through 5 level from 1mm below CEJ to root apex. Teeth were examined twice, and bigger one was selected. If the values showed large difference. examinatin was re-done and the mean was selected. The results were as follows ; 1. In the 4 anterior group, as the remaining bone is decreased, the average of maximal biting force is decreased. Especially, at 3/5 bone level, maximal biting force is decreased significantly(p<0.01). 2. In the canine group, as the remaining bone is decreased, the average of maximal biting force is decreased. Especially, at 2/5 bone level, maximal biting force is decreased significantly(p<0.01). 3. In the premolar group, as the remaining bone is decreased, the average of maximal biting force is decreased. Especially, at 3/5 bone level, maximal biting force is decreased significantly(p<0.05). From the results of this study, clinicians could utilize these efficiently when they have to determine the proper restorative materials, time for tooth extraction, treatment plan, prognosis.

• 한국치위생학회지
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• 제5권1호
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• pp.39-51
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• 2005

This study was conducted to investigate the dental health and physical & psychological health status of the aged. The subjects were 61 old persons, women who were over 65, living at Sahagu in Pusan. The data for this study were collected by using direct interviewing method from October 22th, 2004. The data were analysed by using a computerized program named statistical package for social science including frequency, percentage, ANOVA. The results of the study were summarized as follows: 1. The dental status and the use of dental care institute 1) In status of denture use, it was found to be no denture(45.2%), full denture(35.5%), partial denture(19.4%). 2) In the questionaire of "when did you go to the dental care institute recently?", it was found to be uncertain(41.9%), less than one year(38.8%), 2~3years(16.1%), 1~2years(3.2%). 3) In the questionaire of "what type of the dental care institute did you use?", it was found to be in the dental clinic(80.6%), others(9.7%), dental hospital(6.5%), department of dentistry in general hospital(3.2%). 4) In the questionaire of "why did you select the dental care institute?", it was found to be in the nearly distance(80.6%), relative advice(16.1%), advertisement(3.2%). 5) In the questionaire of "how did you go to the dental care institute?", it was found to be walking(71.0%), bus & subway(22.6%), car(3.2%) and others(3.2%). 6) In the questionaire of "how long did it take to the dental care institute?", it was found to be 10~30min(48.4%), less than 10min(38.7%), 30min~1h(6.5%), 1~2h(3.2%), more than 2h(3.2%). 7) In the questionaire of "what kind of dental care did you take?", it was found to be denture making(45.2%), extraction of tooth, dental surgery, general exam(12.9%), caries(9.7%), denture repair(6.5%), others(3.2%). 8) In the questionaire of "how much did you pay for dental care recently?", it was found to be less than 5,000won(35.5%), 20,000~100,000won(19.4%), 1~3million won(16.1%), 5,000~20,000won, 100,000~300,000won, 500,000~1million won, more than 3million(6.5%), 300,000~500,000won(3.2%). 9) Average score of the subject's physical health status was 4.11 and psychological health status, 4.01 in a 5 point Likert scale. 10) The physical and psychological health status showed the significant differences according to the frequency of eating snack(pE0.05) and snack type(pE0.01). Above findings suggest that geriatric oral health program is necessary in improving the dental health & health status of the aged.

• Journal of Periodontal and Implant Science
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• 제42권5호
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• pp.173-178
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• 2012

Purpose: The main purpose of this study was to investigate bone thickness on the buccal and palatal aspects of the maxillary canine and premolars using cone-beam computed tomography (CBCT). The differences between left- and right-side measurements and between males and females were also analyzed. Methods: The sample consisted of 20 subjects (9 males and 11 females; mean age, $21.9{\pm}3.0$) selected from the normal occlusion sample data in the Department of Orthodontics, The Catholic University of Korea. The thickness of the buccal and palatal bone walls, perpendicular to the long axis of the root were evaluated at 3 mm and 5 mm apical to cemento-enamel junction (CEJ) and at root apex. Results: At the canines and first premolars regions, mean buccal bone thickness of at 3 mm and 5 mm apical to CEJ were less than 2 mm. In contrast, at the second premolar region, mean buccal bone thickness at 3 mm and 5 mm apical from CEJ were greater than 2 mm. Frequency of thick bone wall (${\geq}2mm$) increased from the canine to the second premolar. Conclusions: This result should be considered before tooth extraction and planning of rehabilitation in the canine and premolar area of maxilla. Careful preoperative analysis with CBCT may be beneficial to assess local risk factors and to achieve high predictability of success in implant therapy.

• 대한치과마취과학회지
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• 제7권2호
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• pp.114-119
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• 2007

Background: Dental disabilities mean the poor cooperation for dental treatment because of patient's inherent disability, severe fear and anxiety, and communication problem. Sedation and general anesthesia are usually used for behavioral control in dentally disabled patients. In particular, sedation (conscious and deep) can help them to tolerate the proper dental treatment effectively and safely. Methods: From March 2002 to September 2007, total 35 sedation were carried out in 33 patients (male : female = 20 : 13) with dental disabilities at Seoul National University Dental Hospital and Hanyang University Medical Center. Patients' dental charts and sedation records were retrospectively reviewed. Results: Tooth extraction (19 cases) was the most common dental treatment performed under intravenous sedation (30 cases). Occasionally, inhalation sedation using Sevoflurane 1-2% was adapted (5 cases). Deep sedation (28 cases) was carried out using midazolam 2-3 mg bolus injection and propofol infusion via TCI (4.2 ${\pm}$ 0.9 mg/kg/h), and conscious sedation (7 cases) was carried out using midazolam bolus onlywithout severe complications. The duration of dental treatment was 25.5 ${\pm}$ 12.3 min and that of sedation was 43.2 ${\pm}$ 9.7 min. Conclusion: Sedation for dentally disabledpatients should be selected for effective behavioral control in conjunction with general anesthesia, considering the duration and pain-evoking potentials of dental treatment, the type and severity of patients' disabilities, and the experience of dental anesthesiologists altogether.

• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1972년도 춘계종합 학술대회 초록집
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• pp.17.1-17
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• 1972

편도적출은 우리 이비인후과 임상에서 평소에 다반사로 행해지는 수술의 하나이라 하겠다. 수술술기의 개량, 마취의 발달과 더불어 각종 항생제의 발견등은 편도 적출술에 따르는 여러 가지 합병증을 감소시켰지만, 이중 수술중 또는 수술후에 왕왕 당하는 출혈문제는 가장 흔한 합병증의 하나이며 술자에게는 골치거리의 하나이기도 하여 아직껏 국내외에서 그 보고가 끊어지지 않고 있다. 특히 본증례에서와 같이 본태성 질환으로 인한 출혈의 해결에 있어서는 더욱 복잡곤란한 문제가 많을 것으로 생각된다. 혈우병은 1950년대에 이르러 각 Factor가 발견되어 현재는 혈우병 A.B.C.로 나뉘고 있다. 본증례는 11세의 남아로서 편도 척출술전에는 혈우병의 유무가 인지 못되었던 예로서 수술후 수술창에서 계속되는 출혈로 혈액응고장애를 가진 질환이라고 생각되어 여러 가지 검사결과 P.T.C의 결여로 오는 혈우병 B란 진단을 얻었기에 교훈적이고 귀중한 체험을 얻었다고 생각되어 보고하는 바이다. 환자는 수차의 수혈과 비인강탐폰 등의 방법으로 겨우 지혈되어 수술 20일만에 수술창이 치유되어 퇴원하였다.