구강 화농성 감염증에 관한 세균학적 연구

이동근(Lee Dong Kuen),임창준(Yim Chang Joon),민승기(Min Seung Ki) 대한구강악안면외과학회 1987 대한구강악안면외과학회지 Vol.13 No.1

The managements of oral pyogenic infections are the incision and drainage and the medication of a suitable antibiotics. The proper selection of antibiotics often depends on cultures and antibiotic susceptibility tests. Bacteriologic study of one hundred and thirty eight out-patients with oral pyogenic infection revealed that the Gram positive facultative cocci (50.4%) was the most common strain. The number of anaerobic organisms was fifty-one (21.3%) among two hundred forty isolative organisms. There were seventy nine cases (61.7%) including two or three or four microorganisms. In antibiotic susceptibility test, the most susceptible antibiotic was cephalothin (90.8%) and the most resistent antibiotic was kanamycin(15.4%).

임상원저 : 편측 하악 과두골절의 관혈적 치료에 있어서 예후에 영향을 줄 수 있는 인자들에 관한 임상 통계학적 연구

이동근(Dong Kuen Lee),오승환(Seung Hwan Oh),성헌모(Hun Mo Sung),장관식(Kwan Sik Chang),민승기(Seung Ki Min) 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.1

The purpose of this study is to reveal the factors leading to the problem of unilateral condylar fractures and suggest a treatment guideline of treatment for good prognosis in surgical treatment. The factors can be age, sex, fracture site, degree of displacement, posterior occlusion loss, post-operative alteration of condylar head position, post-operative condylar head resorption, and maxillomandibular fixation period. One hundred and eleven patients with unilateral condylar fractures, who were treated by surgical method from 1990 Feb. to 2000 Feb., were studied. Minimum follow-up period was 6 months. The results were as follows; 1. In the age group of 41 60,females had significantly higher complication rate than males, therefore we must be careful about treatment of female in this age group 2. In level Ⅰfractures of the mandibular condyle, because there were abundant complications when the patients were treated with fragment removal, conservative treatment is recommended over the surgical approach. 3. There were no differences in the complication rate, in the level Ⅱ, Ⅲ fractures. but were severe complications in the cases of patients treated by Dr. Nam's method or fragment removal. Therefore, open reduction and internal fixation is recommended over Dr. Nam's method or fragment removal. 4. In level Ⅳfractures, open reduction and internal fixation is recommended 5. Although there was a higher complication rate depending on the degree of deviation, there was no correlation between the degree of deviation and development of complications in each level of fracture 6. Because the complication rate was higher in cases of condylar resorption, vertical dimension loss, and alteration of condylar head position, we must make an effort to prevent such complications during treatment.

복합성 하악골 골절 환자에서의 십이지장 궤양으로 인한 범발성 복막염의 증례

이동근(Dong Kuen Lee),엄인웅(In Woong Um),김귀희(Kue Hee Kim),민승기(Seung Ki Min) 대한구강악안면외과학회 1992 대한구강악안면외과학회지 Vol.18 No.1

A 54 year-old man was transferred to our OMS department room (ER) with chief complaint of massive intra-oral bleeding due to mandibular open fracture. Emergency treatment and operation was performed within a day. He suffered from severe epigastric pain immediately after emergency operation. The diagnosis was made as acute Pan-peritonitis by General surgeon consult with clinical & radiographic examination. Emergency operation was performed in three days after first operation for Pan-peritonitis. Patient sign & symptom was improved and recovered uneventfully after surgery.

순열 및 구개열 환자의 임상적 연구

이동근(Dong Kuen Lee),임창준(Chang Joon Yim),민승기(Seung Ki Min) 대한악안면성형재건외과학회 1988 Maxillofacial Plastic Reconstructive Surgery Vol.10 No.1

N/A The authors studied 61 cases of cleft lip and/or palate who visited the Department of Oral & Maxillofacial Surgery, College of Dentistry, Won Kwang Univ., during past 3 years. (1984, 7 - 1987, 8) The obtained results were as follows; l. In total 61 cases, male patients were 32 cases (52.5%) and female patients were 29 cases (47.5%). 2. Cleft lip k palate patients were 28 cases (46.1%), cleft lip 25 cases (40.9%), cleft palate 8 cases (13.0%). 3. In cleft lip patients, the Lt. side cleft group (49.0%) was larger than the Rt. aide cleft group (37.7%). 4. In velopharyngcal insufficiency, high nasal sound was much improved by pharyngoplasty. 5. Possible application of some etiology of cleft lip and/or palate were associated with the inheritance, maternal age and drug medication, nutritional insufficiency, mental stress during pregnancy period.

상악골 전치부 분절골절술에 의한 상악골기형의 치험예

이동근(Dong Kuen Lee) 대한구강악안면외과학회 1984 대한구강악안면외과학회지 Vol.10 No.1

A male patient of anterior maxillary protusion at the age of 24, who complained of phonetic problem, esthetic problem and edge to edge bite due to open bite and had congenital missing of both mandibular canine, visited the Department of Oral Surgery, Army 00 Evacuation Hospital, and was treated by anterior maxillary segmental osteotomy involving midpalatal splitting and extraction of both maxillary first premolar. The results are as follows; 1. Selection of the treatment is based on a clinical study of facial status of the patient, and analysis of study model and cephalometric radiographs. 2. A correct diagnosis and proper treatment improve mastication, phonetic and esthetic complaints. 3. The postoperative analysis don t reveal changes of pulp and root involving teeth of osteomized segments. 4. Common sequelas such as swelling and ecchymosis disappeared in 3 to 10 days after surgery, and the paresthesia of upper lip was recovered in 3 to 6 months later. After 6 months of treatment, postoperative radiographs and clinical examinations showed consolidation of osteomized segments without mobility. There has been no discernible change in the position of operation sites during 6 months of postoperative follow-up.

할로탄 마취하에서 국소 투여된 에피네프린이 심맥관계에 끼치는 영향에 관한 임상적 연구

이동근(Lee Dong Kuen),임창준(Yim Chang Joon),김형민(Kim Hyung Min) 대한구강악안면외과학회 1987 대한구강악안면외과학회지 Vol.13 No.2

The 2% lidocaine HCl with epinephrine is commonly injected locally for local hemostasis during oral and maxillofacial surgery. The epinephrine is also injected intravenously or local infiltration to increase arterial blood pressure and pulse rate. The author performed a clinical study on the cardiovascular effects; E.K.G. change, artierial blood pressure and pulse rate after infiltration of 2% lidocaine HCl containing 1: 50,000 epinephrine during halothane general anesthesia in 48 patients who were physical status I of the American Society of Anesthesiologists nomenclatures and operated the elective surgery in department of oral and maxillofacial surgery in Won Kwang University Dental Hospital from August 1986 to Jyly 1987. And, they were classified 4 groups by dosage of epinephrine; Group Ⅰ: the dosage of epinephrine was ranged from 0 to 0.036㎎, Group Ⅱ: range from 0.036㎎ to 0.072㎎, Group Ⅲ: ranged from 0.072㎎ to 0.108㎎. Group Ⅳ: ranged from 0.108㎎ to 0.144㎎. The obtained results were as follows; 1. Cardiac arrhythmias were observed 14 patients (29.2%) of 48 patients after infiltration of 2% lidocaine HCl with 1: 50,000 epinephrine. 2. The arterial blood pressure were increased at 5 minutes remarkablely after infiltration of 2% lidocaine HCl with 1: 50,000 epinephrine, but there was no statistical significance. 3. It is better starting operation after 5 minutes after infiltration of 2% lidocaine HCl with 1: 50,000 epinephrine. 4. When we compared the preoperative abnormal electrocardiogram group with the normal group, occurance rate of cardiac arrhythmia of both group were similar. 5. Cardiac arrhythmias were disappeared without specific treatment except one case and severe and fetal cardiac arrhythmias were not observed. Therefore, it is concluded that we can use epinephrine as much as 0.144㎎ (4 cartridges of lidocaine HCl with epinephrine 1: 50,000) for local hemostasis during halothane general anesthesia.

백서 두개골 결손부에 Hydroxylapatitie와 TGF-β 매식 후 치유과정에 관한 연구

권혁도,이동근,김은철,Kwon, Hyuk-Do,Lee, Dong-Kuen,Kim, Eun-Chol 대한악안면성형재건외과학회 1999 Maxillofacial Plastic Reconstructive Surgery Vol.21 No.1

The purpose of this study was to evaluate the healing process of the calvarial defect filled with hydroxylapatite(HA) and $TGF-{\beta}$ in Rat. 72 Sprague-Dawly rats were divided into 3 groups, control and two experimental groups. Bony defect were artificially prepared in the calvaria of all 72 rats and followed by implantation of HA (experimental group of 24 rats) and HA+$TGF-{\beta}$(another experimental group of 24 rats) into the defects. Sequential sacrifice was performed at 1, 2, 4, 6, 8, 12 weeks of experiment. Obtained specimen was stained with Hematoxylin and Eosin, Masson's Trichrome and Immunohistochemistry. The results were as follows, 1. Granulation tissue was prominent on control group in 1 and 2 weeks. Bony defects were filled with dense fibrous tissue through the whole experimental period and osteoinduction could not be observed in all groups. 2. Inflammatory cell infiltration was prominent on control group in 1 and 2 weeks and osteoclastic activity was high in HA implanted experimental group at 1 and 2 weeks. 3. Inflammatory cell infiltration was less and maturation of fibrous tissue could be found on HA+$TGF-{\beta}$ implanted experimental group at 1 and 2 weeks. 4. Osteoconduction activity was high in HA+$TGF-{\beta}$ implanted experimental group at 2 and 4 weeks but there was no difference after 6 weeks among 3 groups. 5. In grafted site of HA+$TGF-{\beta}$ implanted group, osteonectin expression was slightly increased from 1 week to 6 weeks. In the host site, it was increased from 1 to 4weeks. 6. In grafted site of HA+$TGF-{\beta}$ implanted group, osteocalcin expression was high at 4 weeks. In the host site, we could find the difference among 3 groups. From above results, the HA with mixture of $TGF-{\beta}$ has the potentiality of promoting bone formation in the bony defect area in the rat.

백서 복근에 매식된 동결 건조 및 방사선 멸균처리된 동종골의 조직 반응에 관한 실험적 연구

이창우,임창준,이동근,김수남,Lee, Chang-Woo,Yim, Chang-Joon,Lee, Dong-Kuen,Kim, Soo-Nam 대한악안면성형재건외과학회 1991 Maxillofacial Plastic Reconstructive Surgery Vol.13 No.3

In this study, the healing changes of the implanted bone and its surrounding tissues were examined on the histopathologic basis following implantation of the freeze - dried and radiation - sterilized allogeneic bone in Rectus abdominicus of the rat. This study was performed to see the tissue recations after implantation of the freeze - dried and radiation - sterilized allogeneic bone and whether osteogenesis or osteo - induction or osteo - conduction is happened. And the results were as follows : 1. The shape of the implanted allogeneic bone of the 1, 2 - week group specimen was similar to that of normal bone in light - microscopic finding and the atrophy of cellular organells was found in trans - mission electron - microscopic finding. 2. The implanted allogeneic bone was surrounded with the dense fibroconnective tissues, and infiltration of the chronic inflammatory cells gradually became increased. 3. Hyaline degeneration was observed in the surrounding tissue at the 3, 4, 6 - week group specimen. 4. Light - microscopically the resorption of implanted bone became prominent after 4 - week group and the necrosis of allogeneic bone implant became severe with loss of cell components in lacuna. 5. Electron - microscopically, the osteoclast - like cells ere fond after, 2 - week group. It is summarized that the osteo - conduction potential of the bone is remained just after implanting the freeze - dried and radiation - sterilized allogeneic bone on Rectus abdominicus of the rat, but gradually it disappeared with the gradual increse of chronic inflammatory reaction and osteoclastic activity. So it is suggested that the antigenicity of the freeze - dried and radiation - sterilized bone is remained and it has little osteo - conductive activity when it is implanted in the muscle.

하악골 시상 절단술 후 하악과두 장축각의 변화 및 회귀성향에 관한 논문

신중식(Joong Sik Shin),이동근(Dong Kuen Lee) 대한구강악안면외과학회 1990 대한구강악안면외과학회지 Vol.16 No.3

In sagittal split osteotomy as well as in vertical osteotomy for reduction of mandible, wire and bone screw osteosynthesis has been used. Relapse after sagittal split ramus osteotomy was well documented in many studies. Most of these studies, however, associated with cases which were fixed by transosseous wiring technique. For that reason, relapse rates after sagittal split osteotomy were reported to be reasonably high. Author studied of 20 patients who treated with bilateral · sagittal split ramus osteotomies. For reuction of mandible, stable osteosynthesis with tandem-screw was accompanied with IMF for 3 to 5 days. Author took the serial radiograph before and immediate post operative, postoperative 6 months. Author analysis 5 angular measurement and 4 linear measurement that was used to find out the amount of change in condyle position. According to the final analysis, minimal change was found in condylar position using thandem-screw fixation at postoperative 6 months. Resultly autuor s study indicates resistance against relapse with using tandem-screw fixation after sagittal split ramus osteotomy.

수종의 구강 세척제가 구강내 정상 세균총에 미치는 영향에 관한 연구

서재덕(Jae Duk Seo),이동근(Dong Kuen Lee),임창준(Chang Joon Yim) 대한구강악안면외과학회 1989 대한구강악안면외과학회지 Vol.15 No.1

There are many microorganisms in the oral cavity. In addition to systemic administration of antibiotics, mouth-rinsing is a supplemental method to control the intraoral infections like local topical application. This study involved 15 dental students who have not systemic disease, prosthodontics, periodontitis, pericoronitis. They were divided into 3 groups that involved control group gargled with normal saline and the other experimental groups gargled with 1.5% Benzydamine HCl or 7.5% Polyvinylpyroliodine. 5, 30, 60minutes after mouth-rinsing we investigated with quantitative analysis of microorganisms in the oral cavity. The results were as follows : 1. After mouth-rinsing, the microorganisms were reduced in all three groups. 2. The effect of mouth-rinsing to reduce the microorganisms in highest quantitative change in the polyvinylpyroliodine group. 3. In the quantitative change of microorganisms, the highest reduction rate was presented at 5 minutes after mouth-rinsing. 4. In qualitative change of oral microorganisms with mouth-rinsing, we cannot found significant difference in all three groups.