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- 저자 : 황충주 ( Hwang Chung Ju ) (검색결과 71 건)
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Biphosphonate(Etidronate disodium) 투여 후 치아이동에 따른 치근흡수 및 치조골 변화에 관한 연구
황충주(Chung-Ju Hwang),손병화(Byung-Hwa Sohn) 대한치과교정학회 1991 대한치과교정학회지 Vol.21 No.1
Many studies has been conducted concerning prevention of unnecessary complications such as root resorption during orthodontic tooth movement under various mechanical forces. Nowadays, the cause of the root resorption is not thought to be confined only to mechanical forces. But the factor that affects bone metabolism are thought to be major one of the predisposing factors. The light microscope and scanning electron microscope were used to the effects of 60gm, and 100gm of tipping force on root resorption of cats, which were treated with Etidronate disodium. The results were as follows: 1. In the 60gm control group, hyalinization on the compression site of periodontal ligament appeared after first week and second week. In the 60gm experimental group, it appeared after first week with low frequency. In the 100gm control group it appeared with high frequency by first and second week while in 100gm experimental group, it appeared with low frequency. 2. In the 100gm control group, resorption of the cementum and the alveolar bone rapidly increased after second week. In the 60gm experimental group, resorption or formation of alveolar bone and cementum didn´t appear all through the experimental period. 3. In the 100gm control group. formation of cementum and alveolar bone appeared after first week while in the 100gm experimental group, formation of cementum and alveolar bone appeared after second week and fourth week respectively. In the 60gm control group, formation of the cementum didn´t appear all through the experimental period. 4. In the control group, the root resorption of 100gm group was higher than that of 60gm group after second week, while in experimental group, root resorption didn´t appear regardless of the forces.
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손톱 깨물기 습관을 가진 아동의 교정 치료시 전치부 치근 길이와 치조골 높이의 변화
황충주(Chung-Ju Hwang),양재홍(Jae-Hong Yang) 대한치과교정학회 2004 대한치과교정학회지 Vol.34 No.1
교정치료의 목표는 치아와 악골의 기능성과 심미성을 높이며 안정성을 도모하는 데에 있지만, 치료 과정 중에 치근흡수와 치조골 흡수와 같은 여러 가지 후유증이 발생할 수 있다. 이러한 치근첨의 흡수는 예측이 불가능하고, 상아질 부위까지 파급될 수 있으며, 발생 후 비가역적이다. 치조골 흡수는 치주 지지의 관점에서 매우 중요한 후유증이다. 이에 여러 가지 구강악습관 중 손톱 깨물기 습관을 가진 아동의 교정 치료 전, 후의 치군과 치조골 높이 변화를 고찰하여, 교정 치료 시 적절한 생역학을 교려하고, 치근흡수와 치조골 상실의 가능성에 대처하고자 본 연구를 시행하였다. 연구대상은 1997년 7월부터 1999년 2월까지 연세대학교 치과대학병원 교정과에 교정치료를 목적으로 내원한 10~15세까지의 청소년 중 큰 골격 변이가 없고, 함께 내원한 부모로부터 손톱 깨물기 습관이 있다고 확인되고 전형적인 손톱 형태 - 정기적인 손톱깍는 일이 없이 치아로 손톱을 뜯는 습관으로 변연이 불규칙한 손톱의 형태 - 를 가진 환자 63명을 실험군으로, 같은 연령대의 손톱 깨물기 습관이 없는 환자 63명을 대조군으로 설정하였다. 교정 치료 후 실험군은 31명, 대조군은 22명이었다. 교정 치료 전(T1)과 치료 후(T2), 각 군의 전치부 치근단 방사선 사진을 채득하여 치근의 길이와 치조골의 높이를 평가하여 다음과 같은 결과를 얻었다. 1. 교정 치료 전 실험군의 평균 치관/치근 비는 상악 4전치와 하악 우측 측절치에서 대조군보다 유의성 있게 큰 값을 보여주었다. 2. 교정 치료 전 실험군의 치근 길이는 하악 양측 중절치와 상 • 하악 우측 측절치에서 상대적으로 대조군보다 더 짧은 값을 보였다. 3. 교정 치료 전 실험군의 치간골에서 대조군보다 유의성 있는 상실을 보인 곳이 있었다. 4. 교정 치료 후 실험군과 대조군 모두 치근 길이의 감소와 치간골 소실이 있었다. 5. 교정 치료 후 실험군에서 모든 치아의 치관/치근 비의 변화와 치근의 길이 감소가 대조군보다 유의성 있게 크게 나타났다. 6. 교정 치료 후 실헝군의 모든 치아의 치간골 높이가 대조군보다 유의성 있게 감소하였다. Although the purpose of orthodontic treatment is to increase the function and esthetics of the jaws along with increasing stability, there are many side effects during the treatment itself, such as root resorption and alveolar bone resorption. Such resorption of the apical root is unpredictable, and may even proceed into the dentin layer, Once the process has begun, it is irreversible. By evaluating the effect of many oral habits, especially that of nail biting, in correlation with the root and the periodontal tissues, the appropriate biomechanics for orthodontic treatment can bee taken into consideration, along with the possibility of root resorption and alveolar bone loss during orthodontic treatment, and any legal problems that might occur Among the male and female patients of the ages 10-15, without skeletal deformity, 63 were chosen as the experiment group with known nail biting habits at time of examination, and within the same age group without nail biting habits as the control, After the orthodontic treatment, number of the experiment group was 31 and the control group was 22. The periapical radiographies of anterior teeth were taken and the assesment of the root length and alveolar bone level were taken before(Tl) and after(T2) the orthodontic treatment. The results from this study were as follows : 1. Before the orthodontic treatment, average crown-to-root ratio of the experimental group showed noticeably high values in 4 maxillary incisors and mandibular right central incisor. 2. Before the orthodontic treatment, comparing the root length, maxillary and mandibular right central incisors and both mandibular incisors had a smaller value in the experimental group. 3. Before the orthodontic treatment, comparing and evaluating the alveolar bone loss measured from the cemento-enamel junction to the alveolar bone crest; some crestal bone of the experiment group showed greater loss than the control. 4. After the orthodontic treatment, there was shortening of the root length and loss of the crestal bone in both groups. 5. After the orthodontic treatment, the changes of C/R ratio and the shortening of root length were significantly high in the experimental group. 6. After the orthodontic treatment; the level of alveolar crestal bone showed greater loss in the experimental group.
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황충주(Chung-Ju Hwang) 대한치과교정학회 1999 대한치과교정학회지 Vol.29 No.1
건강과 의료에 관심이 높아지면서 의료수요는 날로 증가하게 되었고 이에 따르는 의료분 쟁 또한 증가하는 추세이다. 교정치료와 관련하여 현재 급증하고 있는 의료사고 및 의료분 쟁 사항을 조사하여 예방 및 대응책을 마련하고자 대한치과교정학회주관으로 인정의 위원회 에서는 30항의 설문지를 작성하였고 1998년 7월에 교정학회 회원 2.200명을 대상으로 교정 치료시 의료사고 유형파악 및 예방을 위한 설문조사를 시행하였다. 그 내용은 의료사고나 분쟁을 경험한 회원들의 인적사항을 포함한 관련사항, 의무기록 작성 및 보관 등에 관한 사 항이었으며 그 결과를 바탕으로 교정과 영역에서의 의료사고 및 의료분쟁의 성격 분석을 하 였다. 현재의 상황에서 언제 어디서 일어날지 모르는 의료사고나 의료분쟁을 예방하거나 방 지하는 것이 의료분쟁이 발생한 후 해결하는 것보다 더 중요하다. 이를 위해서는 환자와 의 사간의 신뢰를 바탕으로 진료기술의 숙련도를 높이고 발전하는 새로운 의학 정보를 얻는데 게으르지 말아야하며 진단, 치료과정, 치료의 후유증, 위험성에 관한 자세한 설명을 통하여 환자 스스로 치료여부를 결정할 수 있는 의료환경을 만들어 나가야할 것이며 환자를 대하는 데 주의를 기울이며 가장 기본적인 진료기록부 작성과 관리에 관심을 가져 야 할 것이다. 교정학회차원에서도 의료사고와 분쟁의 예방과 대응책에 관한 교육프로그램과 의료사고와 분쟁이 발생할 경우 도움을 줄 수 있는 대책이나 기구 등을 마련하여야 할 것이다. As people are more concerned about their and medical care. there have been and increasing number of medical disputes due to increased medical demand. In order to prevent and provide solution to currently surging medical accidents and disputes related to orthodontic treatment, in July 1998, the Korean Association Of Orthodontists surveyed 2,200 members of Korean Association of orthodontists on 30 items to recognize the pattern of medical accidents and prevent them. The survey was about accident-related items including personal profiles of members and patients who have undergone medical accidents or disputes, the cause and solution to the accidents, cautions related to members orthodontic treatment, and medical recording and archival. Based on the survey result we analyzed characteristics of medical accidents and disputes in orthodontic area. It is more important to predict and prevent possible medical accidents or disputes based on current situation than to solve them after disputes occur. For this, we should not be negligent in raising treatment proficiency level based on patient-doctor trust and in obtaining new medical information. We should also provide medical environment where patients themselves can decide whether to get treatment after they are offered detailed explanation on diagnosis, treatment procedure, complication, and possible hazard. We should take caution when treating patients and pay attention to charting and maintenance, which is the most fundamental, as well. Also at the Korean Association and disputes, and actions and organizations that can help when accidents and disputes occur.
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골격성 제III급 부정교합 환자에 대한 상악골 전방견인 장치의 치료효과
황충주,경승현,임중기,Hwang, Chung-Ju,Kyung, Seung-Hyun,Lim, Joong-Ki 대한치과교정학회 1994 대한치과교정학회지 Vol.24 No.4
Before 1970, mandibular overgrowth was known as main cause of skeletal Class III malocclusion in growing children ; however, recent study reports that many skeletal Class III malocclusion patients also show maxillary deficiency. Since 1972, when Delaire re-accommodated Protraction Head Gear (P.H.G.), many researchers have reported that skeletal Class III discrepancies could be corrected through use of P.H.G., which induces anterior movement of maxilla and change in mandibular growth pattern into infero-posterior direction ; nevertheless, it is very difficult to predict resultant changes of orofacial region. The purpose of this study was to find out what treatment effect P.H.G. has on different study samples. Author divided 51 skeletal Class III malocclusion patients with maxillary deficiency who were treated with P.H.G. into different study groups depending on sex, treatment beginning age, intraoral appliance, and facial growth pattern. By doing so, following results were obtained. 1. Treatment beginning age and Sex Four age groups (5.8 to 8 year-old, 8 to 10 year-old, 10 to 12 year-old, 12 to 14 year-old) were compared, and no significant difference was observed. (p<0.05) There was no significant difference between the sex groups, either. (p<0.05). 2. Intraoral appliance Treatment effects of study groups that used R.P.E.(mean age of 10.2) and Labio-Lingual appliance(mean age of 8.9) were compared. There was no significant difference depending on the type of intraoral appliance that was used. (p<0.05) 3. Facial growth pattern 1) Amounts of SNB and ANB corrections were smaller in clockwise growth pattern group than those in normal or counterclockwise growth pattern group. (p<0.05) 2) Amounts of increase in Wits appraisal and mandibular plane angle were greater in counterclockwise growth pattern group than those in normal or clockwise growth pattern group. (p<0.05) 3)Amounts of increase in articular angle were greater in counter lockwise growth pattern group than those in clockwise growth pattern group. (p<0.05)
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